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  • Combining 2 ethernet ports as 1 on a cisco router

    I am new at this and this is my first post so please be kind to me. I have a scenario where I am using 2 watchguard 6500 firewalls in high availability mode. This requires the 2 Cisco Routers (2811's) both with 2 ethernet ports and both ethernet ports to be on the same network. Firewall "A" fails over to Firewall "B" (which is in standby) the config of Firewall "A" is duplicated on firewall "B". Router "A" eth0 is connected to Firewall "A" port 1 and Router "A" eth1 is connected to Firewall 'B" port 1. Same ports and same network. Since they both have the same ip address when the Firewalls fails over I have a need to have the same ip address on both ports on 1 router. The 2nd Router does the same thing but on a different DS3 circuit. Is this possible? I know this can be done with an ethernet switch but that is another piece of equipment and a point of failure. Thank you very much.

  • #2
    Re: Combining 2 ethernet ports as 1 on a cisco router

    use IRB?

    birdge irb
    bridge 1 protocol ieee
    birdge 1 route ip

    inter e0/0
    bridge-groupe 1

    inter e0/1
    bridge-groupe 1

    interface bvi1
    ip add x.x.x.x x.x.x.x

    you can try, I have no routers on-hand,otherwise I will test it for you.

    Comment


    • #3
      Re: Combining 2 ethernet ports as 1 on a cisco router

      Thank You CiscoStation I will let you know

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