1 Reply Latest reply on Aug 31, 2015 11:04 AM by cj!

    Multiple Etherent ports for multiple WAN connections

    ccpjim New Member

      Customer has both Ethernet ports used, One for the WAN side and other for the inside. They are adding a second WAN carrier and needs a third Ethernet interface. Can a sub interface be assigned and then connect the WAN port to a VLAN'd switch with both WAN connections coming into that switch? Or is there a better way?

        • Re: Multiple Etherent ports for multiple WAN connections
          cj! Beta_User

          Hi ccpjim:


          You're on the right track.  The sale of a shiny new ADTRAN firewall is most always the best approach.    To add a second WAN link (essentially a third interface for a unit with only two physical interfaces), sub-interfaces are the way to go.


          Keep in mind that the 3400-series units are designed to process a certain amount of traffic.  Throughput may be limited by what the routing engine can handle.  Adding a second WAN link may aggravate the situation if you're using fast WAN links, which are becoming common.  The ADTRAN pre-sales support team is very helpful and I encourage you to check with them before implementing changes.