25 Replies Latest reply on Jan 30, 2015 1:08 AM by f1x0r4t3d

    Configuration of T1 on Netvanta 3448

    f1x0r4t3d New Member

      Hello,

       

      I am in the process of configuring a NetVanta 3448 with T1 interface. I have successfully configured the T1 and PPP as they both show as up but I cannot ping anything other than the local ethernet interface. I am able to lock the circuit from our DS3 and perform loopback tests but IP routing seems to not be working properly. Any assistance would be greatly appreciated.

       

      Thanks

        • Re: Configuration of T1 on Netvanta 3448
          f1x0r4t3d New Member

          To add a few more details, the config has the IP route of 0.0.0.0 0.0.0.0 ppp 1

            • Re: Configuration of T1 on Netvanta 3448
              petersjncv Visitor

              Can you post your full config from both routers?  Or does this connect to a service provider such that you don't control the other end? 

                • Re: Configuration of T1 on Netvanta 3448
                  f1x0r4t3d New Member

                  Here is the config of the Adtran router. I began testing with a 3200.

                   

                  ! ADTRAN, Inc. OS version 17.05.01.00.E

                  ! Boot ROM version 17.02.01.00

                  ! Platform: NetVanta 3200, part number xxxxxx

                  ! Serial number XXXXX

                  !

                  !

                  hostname "Router"

                  no enable password

                  !

                  clock timezone GMT-Dublin

                  !

                  ip subnet-zero

                  ip classless

                  ip routing

                  !!!

                  !

                  auto-config

                  !

                  event-history on

                  no logging forwarding

                  no logging email

                  !

                  no service password-encryption

                  !

                  username "admin" password "password"

                  !

                  !

                  no ip firewall alg msn

                  no ip firewall alg mszone

                  no ip firewall alg h323

                  !

                  no dot11ap access-point-control

                  !

                  interface eth 0/1

                    ip address  11.205.205.5  255.255.255.0

                    no shutdown

                  !

                  interface t1 1/1

                    fdl att

                    tdm-group 1 timeslots 1-24 speed 64

                    no shutdown

                  !

                  interface ppp 1

                    ip unnumbered eth 0/1

                    peer default ip address 11.205.205.205

                    ppp multilink interleave

                    ppp multilink fragmentation

                    ppp multilink

                    no shutdown

                    cross-connect 1 t1 1/1 1 ppp 1

                  !

                  !

                  ip route 0.0.0.0 0.0.0.0 ppp 1

                  !

                  no ip tftp server

                  no ip tftp server overwrite

                  ip http server

                  no ip http secure-server

                  no ip snmp agent

                  no ip ftp server

                  no ip scp server

                  no ip sntp server

                  !

                  !

                  no snmp-server enable traps

                  !

                  !

                  !

                  !!!!!

                  !

                  line con 0

                    no login

                  !

                  line telnet 0 4

                    login

                    no shutdown

                  line ssh 0 4

                    login local-userlist

                    no shutdown

                  !

                  !

                  end

                  • Re: Configuration of T1 on Netvanta 3448
                    f1x0r4t3d New Member

                    Here is the DS3 configuration for the bundle I am working with.

                     

                    ##################DS3 Configuration:

                    interface  bundle TEST

                        link  ct3 1 18

                        encapsulation ppp

                        ppp mru 64-1518-4500

                        ip  unnumbered ethernet1

                        ip  multicast ospfrip2

                        red

                          exit red

                        icmp

                          exit icmp

                        qos

                          add_class TESTvoice root-out cr 300 br 1500 priority 1

                          add_class TESTdefault root-out cr 100 br 1000 priority 5

                          add_class TESTdata root-out cr 600 br 1000 priority 2

                          add_class TESTdatain TESTdata cr 300 br 1000

                          add_class TESTdataout TESTdata cr 200 br 1000

                          class TESTvoice

                            add_vlan_id 30

                            exit class

                          class TESTdefault

                            add_vlan_id default

                            exit class

                          class TESTdata

                            add_vlan_id 31

                            exit class

                          class TESTdatain

                            add_src_ip 11.0.0.0 255.0.0.0

                            exit class

                          class TESTdataout

                            add_src_ip default

                            exit class

                          enable cbq outbound

                          exit qos

                        aaa

                          exit aaa

                        exit bundle

                     

                    ################################TRIED DS3 CONFIG:

                    interface  bundle TEST

                        link  ct3 1 18

                        encapsulation ppp

                        ppp mru 64-1518-4500

                        ip  unnumbered ethernet1

                        ip  multicast ospfrip2

                        red

                          exit red

                        icmp

                          exit icmp

                        qos

                          exit qos

                        aaa

                          exit aaa

                        exit bundle

                     

                    ####################DS3 BUNDLE Status

                    DS3> show int bundle TEST

                     

                    bundle TEST

                    --------------

                    status                              up

                    number of links                     1

                    total bandwidth                     1536 kbps

                     

                    link                 speed  bw     inverted  status     diffdelay(msec)

                    ----                 -----  --     --------  ------     ----------------

                    ct3 1 18             64     1536   no        up          -

                     

                    encapsulation                       ppp

                        mtu                             64-1500-4500

                        mru                             64-1518-4500

                        magic_check                     enable

                     

                    Negotiated ppp bundle values

                        negotiated mru                  1500

                        negotiated mtu                  1518

                     

                    ip info

                        ipaddr                          11.205.205.205

                        netmask                         255.255.255.0

                    • Re: Configuration of T1 on Netvanta 3448
                      f1x0r4t3d New Member

                      Here is the interface status of the 3200

                       

                      Router#show interfaces

                      Displaying interfaces...

                       

                       

                      t1 1/1 is UP

                        Receiver has no alarms

                        T1 coding is B8ZS, framing is ESF

                        Clock source is line, FDL type is AT&T

                        Line build-out is 0dB

                        No remote loopbacks, No network loopbacks

                        Acceptance of remote loopback requests enabled

                        Tx Alarm Enable: rai

                        Last clearing of counters 00:13:39

                          loss of frame  : 1, last occurred 00:13:39

                          loss of signal : 0

                          AIS alarm      : 0

                          Remote alarm   : 0

                       

                       

                        DS0 Status: 123456789012345678901234

                                    NNNNNNNNNNNNNNNNNNNNNNNN

                        Status Legend: '-' = DS0 is unallocated

                                       'N' = DS0 is dedicated (nailed)

                       

                       

                        Line Status: -- No Alarms --

                       

                       

                        5 minute input rate 8984 bits/sec, 11 packets/sec

                        5 minute output rate 9200 bits/sec, 11 packets/sec

                        Current Performance Statistics:

                          0 Errored Seconds, 0 Bursty Errored Seconds

                          0 Severely Errored Seconds, 0 Severely Errored Frame Seconds

                          0 Unavailable Seconds, 0 Path Code Violations

                          0 Line Code Violations, 0 Controlled Slip Seconds

                          0 Line Errored Seconds, 0 Degraded Minutes

                       

                       

                        TDM group 1, line protocol is UP

                        Encapsulation PPP (ppp 1)

                          8705 packets input, 876595 bytes, 0 no buffer

                          0 runts, 0 giants, 0 throttles

                          99 input errors, 99 CRC, 0 frame

                          0 abort, 0 discards, 0 overruns

                          8735 packets output, 902171 bytes, 0 underruns

                       

                       

                      ppp 1 is UP

                        Configuration:

                          Keep-alive is set (10 sec.)

                          Multilink

                            MTU = 1500, MRRU = 1520

                          Multilink Interleave

                          Multilink Fragmentation

                          No authentication

                          IP is configured

                            unnumbered 11.205.205.5  255.255.255.0

                        Link thru t1 1/1 is UP; LCP state is OPENED, negotiated MTU is 1500

                          Actual Bandwidth is 1536 kbps

                          Receive: bytes=876721, pkts=8709, errors=0

                          Transmit: bytes=1802284, pkts=17446, errors=0

                        5 minute input rate 8984 bits/sec, 11 packets/sec

                        5 minute output rate 9200 bits/sec, 11 packets/sec

                        Bundle information

                          Aggregate Bandwidth is 1536 kbps

                          Total receive: bytes=876721, pkts=8709, errors=0

                          Total transmit: bytes=1802284, pkts=17446, errors=0

                          5 minute input rate 8984 bits/sec, 11 packets/sec

                          5 minute output rate 9200 bits/sec, 11 packets/sec

                          Queueing method: weighted fair

                          HDLC tx ring limit: 2

                          Output queue: 0/1/540/64/0 (size/highest/max total/threshold/drops)

                            Conversations  0/1/256 (active/max active/max total)

                            Available Bandwidth 1152 kilobits/sec

                          IP is UP, IPCP state is OPENED

                            Unnumbered Address=11.205.205.5 Mask=255.255.255.0

                            Peer address=11.205.205.205

                            IP MTU=1500, Bandwidth=1536 Kbps

                          LLDPCP State is STOPPED

                       

                       

                      eth 0/1 is UP, line protocol is UP

                        Hardware address is XX:XX:XX:XX:XX:XX

                        Ip address is 11.205.205.5, netmask is 255.255.255.0

                        MTU is 1500 bytes,  BW is 100000 Kbit

                        100Mb/s, negotiated full-duplex, configured full-duplex

                        ARP type: ARPA; ARP timeout is 20 minutes

                        5 minute input rate 3912 bits/sec, 5 packets/sec

                        5 minute output rate 11608 bits/sec, 5 packets/sec

                          Queueing method: fifo

                          Output queue: 0/256/0 (size/max total/drops)

                          Interface Shaper: NOT ENABLED

                          1773 packets input, 151969 bytes

                          1609 unicasts, 164 broadcasts, 0 multicasts input

                          0 unknown protocol, 0 symbol errors, 0 discards

                          0 input errors, 0 runts, 0 giants

                          0 no buffer, 0 overruns, 0 internal receive errors

                  • Re: Configuration of T1 on Netvanta 3448
                    petersjncv Visitor

                    Well, my first observation without digging deeper is the multi-link part of the configuration on a single T1 service.  Having multi-link enabled itself may not be a problem, but I definitely think 'ppp interleave' could cause an issue if enabled on one side and not the other.  That said, since it's a single T1 none of the multi-link config should be necessary, unless, of course, you are planning on adding T1's to the bundle.

                      • Re: Configuration of T1 on Netvanta 3448
                        f1x0r4t3d New Member

                        Removing the ppp multilink drops the PPP interface and leaves it in a down state. I have been able to remove the interleave and fragmentation while leaving the PPP in an up state. Not sure why it kills the PPP without multilink though since both the DS3 and Adtran config only have 1 T1.

                          • Re: Configuration of T1 on Netvanta 3448
                            petersjncv Visitor

                            So do you know how the upstream router is configured?  Is it a service provider or another site you manage directly?  Have you tried putting the IP on the PPP interface directly just to see if it works in that configuration?  Are you also constantly receiving errors on the T1 interface?  I just noticed now that while counters were showing cleared 13 minutes ago in your screen dump, input errors and CRC's were still reported.

                             

                              TDM group 1, line protocol is UP

                              Encapsulation PPP (ppp 1)

                                8705 packets input, 876595 bytes, 0 no buffer

                                0 runts, 0 giants, 0 throttles

                                99 input errors, 99 CRC, 0 frame

                             

                            I find it odd that removing multilink breaks PPP link but that means the other side is likely configured for multilink.  Again, shouldn't be a bad thing or prohibit service from working like how you are experiencing.  As long as the configuration matches on both sides, you should be good.  The interface is also reporting a small amount of 2 way traffic, so that at least is a good sign that you are talking to something.  I did notice that your code is pretty old - showing ADTRAN, Inc. OS version 17.05.01.00.E in your running config.  You should probably upgrade.

                             

                            I would look for and check off all the usual suspects before going further and running debugs, because that is probably the next step.  You will definitely want to talk to whomever manages the other side of this connection and make sure that IP, Netmask, and PPP configuration information is all correct.  Definitely make sure you aren't taking input and CRC errors when the T1 is UP with PPP UP.  That may be a sign of a framing problem elsewhere in the circuit.  It may also be worth making sure that ICMP isn't blocked on the gateway for some reason. 

                              • Re: Configuration of T1 on Netvanta 3448
                                f1x0r4t3d New Member

                                I went ahead and deleted the QOS from both the DS3 and the Adtran. I was able to configure the PPP without multilink and the bundle came up but still no ping. I configured the PPP interface with the IP directly and still no ping. I have direct control of the DS3 (other side). I will have to go back to review the configuration without the QOS to see if it has any errors. Using a different non-Adtran router on the client (test) side allows ICMP packets so I don't think it would be anything external to the Adtran configuration. I think it is something I may be missing on the Adtran config. I even tried disabling IP Routing and enabling the IP default-gateway but still no ping. Thank you very much for your assistance by the way...I will let you know if I find any errors on the new config.

                                  • Re: Configuration of T1 on Netvanta 3448
                                    f1x0r4t3d New Member

                                    I re-configured the 3200 and see no errors. Here is the Bundle information from the DS3 side. On a side note...I am able to lock the circuit and perform a loopback test which results in no errors. Unfortunately, the Adtran device is out of warranty and I don't know where I can obtain an updated firmware package.

                                     

                                    counters for the last five minutes

                                        Bytes Rx                 288391    Bytes Tx                 283941

                                        Packets Rx                   12    Packets Tx                 2653

                                        Err Packets Rx                0

                                        Up/Down States                0

                                    ########################################

                                    Test Type:        BERT   Status:            LOCKED   Pattern:            QRW

                                    Locked Seconds:    121   Pattern Loss Count:        0   Bit Error Count:      0

                                     

                                     

                                    Configured Time:      0 minute

                                    Elapsed Time:         2 min.  1 sec.

                                      • Re: Configuration of T1 on Netvanta 3448
                                        petersjncv Visitor

                                        Are you trying to PPP on the DS3 itself, or have you configured a T1 channel inside the DS3 for this?

                                         

                                        Would you mind posting configurations for both sides of the link?  I'd be more than happy to take a look.

                                          • Re: Configuration of T1 on Netvanta 3448
                                            f1x0r4t3d New Member

                                            Here is how the DS3 side is configured. It is a Channelized T3 connection where the T1 is configured as a bundle for an individual site.

                                             

                                            interface  ethernet 1

                                                speed 100 full_duplex

                                                ip  address 11.205.205.205 255.255.255.0

                                                ip  multicast ospfrip2

                                                icmp

                                                  exit icmp

                                                qos

                                                  exit qos

                                                vrrp_mode 0

                                                aaa

                                                  exit aaa

                                                exit ethernet

                                            ######

                                            interface  bundle TEST

                                                link  ct3 1 18

                                                encapsulation ppp

                                                ppp mru 64-1518-4500

                                                ip  unnumbered ethernet1

                                                ip  multicast ospfrip2

                                                red

                                                  exit red

                                                icmp

                                                  exit icmp

                                                qos

                                                  exit qos

                                                aaa

                                                  exit aaa

                                                exit bundle

                                            • Re: Configuration of T1 on Netvanta 3448
                                              f1x0r4t3d New Member

                                              Here is the ADTRAN config.

                                               

                                               

                                              ! ADTRAN, Inc. OS version 17.05.01.00.E

                                              ! Boot ROM version 17.02.01.00

                                              ! Platform: NetVanta 3200, part number xxxxxx

                                              ! Serial number XXXXX

                                              !

                                              !

                                              hostname "Router"

                                              no enable password

                                              !

                                              clock timezone GMT-Dublin

                                              !

                                              ip subnet-zero

                                              ip classless

                                              ip routing

                                              !

                                              auto-config

                                              !

                                              event-history on

                                              no logging forwarding

                                              no logging email

                                              !

                                              no service password-encryption

                                              !

                                              username "admin" password "password"

                                              !

                                              !

                                              no ip firewall alg msn

                                              no ip firewall alg mszone

                                              no ip firewall alg h323

                                              !

                                              no dot11ap access-point-control

                                              !

                                              interface eth 0/1

                                                ip address  11.205.205.5  255.255.255.0

                                                no shutdown

                                              !

                                              interface t1 1/1

                                                tdm-group 1 timeslots 1-24 speed 64

                                                no shutdown

                                              !

                                              interface ppp 1

                                                ip unnumbered eth 0/1

                                                no shutdown

                                                cross-connect 1 t1 1/1 1 ppp 1

                                              !

                                              !

                                              ip route 0.0.0.0 0.0.0.0 ppp 1

                                              !

                                              no ip tftp server

                                              no ip tftp server overwrite

                                              ip http server

                                              no ip http secure-server

                                              no ip snmp agent

                                              no ip ftp server

                                              no ip scp server

                                              no ip sntp server

                                              !

                                              !

                                              no snmp-server enable traps

                                              !

                                              !

                                              !

                                              !

                                              line con 0

                                                no login

                                              !

                                              line telnet 0 4

                                                login

                                                no shutdown

                                              line ssh 0 4

                                                login local-userlist

                                                no shutdown

                                              !

                                              !

                                              end

                                                • Re: Configuration of T1 on Netvanta 3448
                                                  f1x0r4t3d New Member

                                                  Here are the route tables for both the DS3 and the Adtran.

                                                   

                                                  DS3 ROUTE TABLE:

                                                  Codes: C - connected, S - static, O - OSPF, R - RIP, B - BGP, A - Aggregate,

                                                         D - directly connected, OA - OSPF intra area, IA - OSPF inter area,

                                                         N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2,

                                                         E1 - OSPF external type 1, E2 - OSPF external type 2, X - Redirect

                                                   

                                                  IP Load balancing policy is per_flow

                                                   

                                                       Network            Next Hop        Interface    PVC# Distance   Metric

                                                       -------            --------        ----------------- --------   ------

                                                  S  D 0.0.0.0/0          11.205.205.205  ethernet1         1          0

                                                  C    11.205.205.0/24    11.205.205.205  ethernet1         0          0

                                                  C    11.205.205.5/32    11.205.205.205  dalssc4           0          0

                                                   

                                                   

                                                  ###################################################

                                                  ADTRAN ROUTE TABLE

                                                  S 0.0.0.0/0 [1/0] via 0.0.0.0, ppp 1

                                                  C 11.205.205.0/24 is directly connected, eth 0/1

                                                  C 11.205.205.205/32 is directly connected, ppp 1

                                                  • Re: Configuration of T1 on Netvanta 3448
                                                    petersjncv Visitor

                                                    On the Adtran side of things, the PPP interface configuration appears to me to be correct.

                                                     

                                                    What is the other side - is that a Juniper router?  Have you verified that the Juniper configuration is correct?  It appears that you are still attempting to multilink PPP.  Is multilink necessary for your configuration?

                                                    You may also want to check the PPP MRU values on each endpoint.  I believe the Adtran default MRU is 1520.

                                                     

                                                    I did a quick search online for Juniper DS3 to DS1 PPP configuration.  Here is what I found.  Can you or have you tried a configuration like this? (obviously changing certain parameters to meet your config criteria)

                                                     

                                                    t1-2/0/1:20 {

                                                    encapsulation ppp;

                                                    unit 0 {

                                                    family inet {

                                                    address 10.0.4.40/32 {

                                                    destination 10.0.4.41;

                                      • Re: Configuration of T1 on Netvanta 3448
                                        jayh Hall_of_Fame

                                        There doesn't seem to be any problem with the layer 2 configuration or operation. There is some vendor gear that only does multilink on ppp so seeing a "bundle" of one isn't all that unusual. 

                                         

                                        It looks like a routing issue to me.

                                         

                                        Your unnumbered configuration has both sides referencing the same subnet of 11.205.205.0/24. Because your default route points to the interface which is on the same subnet as the local Ethernet, traffic will try to stay local.

                                         

                                        If you must use ppp unnumbered, change one Ethernet subnet to something other than 11.205.205.0/24. Or use a numbered /31 (or /30 if the other side doesn't handle /31) for the ppp link. In any event having the same subnet on the Ethernet on both sides of the link is most likely your issue.

                                         

                                        By the way, unless this is a US Department of Defense military network, 11.0.0.0/8 probably isn't your best choice. See RFC1918.

                                         

                                        speedy:~ jay$ whois 11.205.205.0

                                         

                                        NetRange:       11.0.0.0 - 11.255.255.255

                                        CIDR:           11.0.0.0/8

                                        NetName:        DODIIS

                                        NetHandle:      NET-11-0-0-0-1

                                        Parent:          ()

                                        NetType:        Direct Allocation

                                        OriginAS:

                                        Organization:   DoD Network Information Center (DNIC)

                                        RegDate:        1984-01-19

                                        Updated:        2007-08-22

                                        Ref:            http://whois.arin.net/rest/net/NET-11-0-0-0-1

                                          • Re: Configuration of T1 on Netvanta 3448
                                            f1x0r4t3d New Member

                                            Jayh,

                                             

                                            I agree that it seems to be a routing issue. The IP's are different from the actual IP's used since I posted the config on the forum (I changed them before posting). I will try changing the subnet later today to see if that makes a difference but the IP's used were tested with a different client side router and the router could ping the DS3 and access the internet. The Adtran devices are the only ones that do not work. Basically, changing out the client side router causes routing to fail when using the same circuit, bundle configuration on the DS3 and IP addressing scheme. Here is the response I got from the Adtran engineer.

                                             

                                            "All I can think of is a firmware upgrade and trying to use IRB for the PPP.  The protocol reject messages we were seeing the the PPP negotiation don't make alot of sense, since we see them after the LCP and IPCP are already up, but there is no way to capture more on those messages. I'm really curious if there is something additional in the PPP that the DS3 concentrator is trying to do."

                                             

                                            Thanks

                                              • Re: Configuration of T1 on Netvanta 3448
                                                jayh Hall_of_Fame

                                                f1x0r4t3d wrote:

                                                 

                                                I agree that it seems to be a routing issue. The IP's are different from the actual IP's used since I posted the config on the forum (I changed them before posting). I will try changing the subnet later today to see if that makes a difference but the IP's used were tested with a different client side router and the router could ping the DS3 and access the internet.

                                                If you have the same subnet on both sides of the unnumbered link, I would not expect routing to work. If it worked with another vendor's gear, it may have been an anomaly. To route effectively, the subnets to and from which you are routing should be different. I'm not a big fan of unnumbered serial links but that isn't likely to be your problem.

                                                 

                                                If you can't assign a different subnets to the two Ethernets, bridging would be the logical option, although friends don't let friends bridge networks.

                                                  • Re: Configuration of T1 on Netvanta 3448
                                                    f1x0r4t3d New Member

                                                    Changing the IP address on the Adtran for Ethernet 0/1 to 11.205.205.5/31 still doesn't allow ping. I believe the Adtran engineer had already tried bridging the Adtran but still no ping. We may just look into redesigning the way we connect client side equipment since this seems to not want to work.

                                                      • Re: Configuration of T1 on Netvanta 3448
                                                        jayh Hall_of_Fame

                                                        You can't route the same subnet on both sides of the link. Assign a different subnet to the ethernet of the Adtran than you have on the ethernet of the upstream, not just a different IP in the same subnet.

                                                          • Re: Configuration of T1 on Netvanta 3448
                                                            f1x0r4t3d New Member

                                                            I have now been able to reproduce the issue with our once working router. I will try a few changes on the Adtran and hopefully have better results. Will update here once complete.

                                                              • Re: Configuration of T1 on Netvanta 3448
                                                                f1x0r4t3d New Member

                                                                I was able to reproduce the issue on our Tiara router (bundle up but no routing). The config I yanked out from the Tiara is below. I don’t know of a way to add the VLAN ID to the 3200/3448 Adtran. On the 3200, when I assign the Ethernet port as a VLAN trunk it disables the ability to assign a static IP. The TEST is the bundle that is configured on our DS3 as well as the client side Tiara. It seems that without this VLAN ID/default route, the IP routing fails. Is there a way to replicate this configuration on AOS?

                                                                 

                                                                vlanfwd

                                                                  add  vlanid 41 TEST

                                                                  management

                                                                    vlanid 41

                                                                    default_route 11.205.205.200 TEST

                                                                    exit management

                                                                  exit vlanfwd

                                                                  • Re: Configuration of T1 on Netvanta 3448
                                                                    f1x0r4t3d New Member

                                                                    So I configured the interface eth 0/1 with 802.1q encapsulation, then created a sub interface eth 0/1.1. I then assigned the vlanid 41 to be the native vlanID for sub interface eth0/1.1. I then configured the PPP 1 interface with ip unnumbered eth0/1.1. The PPP 1 interface picks up the statically assigned IP from sub interface eth0/1.1 but still no routing. I even tried assigning a new IP 11.205.208.5/24 but still no success.

                                                                      • Re: Configuration of T1 on Netvanta 3448
                                                                        f1x0r4t3d New Member

                                                                        Here is the Bridging config I used. Still no ping.

                                                                         

                                                                        !

                                                                        hostname "Router"

                                                                        no enable password

                                                                        !

                                                                        clock timezone GMT-Dublin

                                                                        !

                                                                        ip subnet-zero

                                                                        ip classless

                                                                        ip routing

                                                                         

                                                                         

                                                                        !

                                                                        auto-config

                                                                        !

                                                                        event-history on

                                                                        no logging forwarding

                                                                        no logging email

                                                                        !

                                                                        no service password-encryption

                                                                        !

                                                                        username "admin" password "password"

                                                                        !

                                                                        !

                                                                        no ip firewall alg msn

                                                                        no ip firewall alg mszone

                                                                        no ip firewall alg h323

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        no dot11ap access-point-control

                                                                        bridge irb

                                                                        !

                                                                        !

                                                                        bridge 1 protocol ieee

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        interface eth 0/1

                                                                          bridge-group 1

                                                                          bridge-group 1 vlan-transparent

                                                                          no ip address

                                                                          no shutdown

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        interface t1 1/1

                                                                          tdm-group 1 timeslots 1-24 speed 64

                                                                          no shutdown

                                                                        !

                                                                        interface ppp 1

                                                                          bridge-group 1

                                                                          bridge-group 1 vlan-transparent

                                                                          no ip address

                                                                          ppp bcp tagged-frame

                                                                          mtu 1524

                                                                          no shutdown

                                                                          cross-connect 1 t1 1/1 1 ppp 1

                                                                        !

                                                                        !

                                                                        interface bvi 1

                                                                          description BVI 1

                                                                          mac-address 00:00:00:00:xx:xx

                                                                          ip address  11.205.205.5  255.255.255.0

                                                                          no shutdown

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        no ip tftp server

                                                                        no ip tftp server overwrite

                                                                        ip http server

                                                                        no ip http secure-server

                                                                        no ip snmp agent

                                                                        no ip ftp server

                                                                        no ip scp server

                                                                        no ip sntp server

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        no snmp-server enable traps

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        line con 0

                                                                          no login

                                                                        !

                                                                        line telnet 0 4

                                                                          login

                                                                          no shutdown

                                                                        line ssh 0 4

                                                                          login local-userlist

                                                                          no shutdown

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        !

                                                                        end