1 Reply Latest reply on May 17, 2018 6:21 AM by ricvil

    Disable IPv6 DNS Lookup

    jasonrk New Member

      Is there a way to disable IPv6 DNS Lookups? Queries to certain cites always return an IPv6 address:

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

      NV3140#ping google.com

      Type CTRL+C to abort.

      Legend: '!' = Success, '?' = Unknown host, '$' = Invalid host address

              '*' = Request timed out, '-' = Destination host unreachable

              'x' = TTL expired in transit, 'e' = Unknown error

              'B' = Packet too big

      Sending 5, 100-byte ICMP Echos to 2607:F8B0:4009:80F::200E, timeout is 2 seconds:

      *****

      Success rate is 0 percent (0/5)

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

      Is there a way to force the Adtran 3140 to use IPv4? Thanks!

       

        • Re: Disable IPv6 DNS Lookup
          ricvil New Member

          Not really.  You just need to tell the application which version to use:

           

          #ping

          <cr>

          ip                     - ICMPv4 ping

          ipv6                   - ICMPv6 ping

          twamp                  - Send TWAMP type ping to measure the packet loss, delay

                                   and jitter

          vrf                    - Send ICMP echo on the specified VRF

          WORD                   - Ping destination (A.B.C.D, X:X:X:X::X, or hostname)

           

          #ping ip google.com

          Type CTRL+C to abort.

          Legend: '!' = Success, '?' = Unknown host, '$' = Invalid host address

                  '*' = Request timed out, '-' = Destination host unreachable

                  'x' = TTL expired in transit, 'e' = Unknown error

                  'B' = Packet too big

          Sending 5, 100-byte ICMP Echos to 172.217.11.14, timeout is 2 seconds:

          !!!!!

          Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms