Cisco 2611 with Two T1 from two ISPs

Discussion in 'Cisco' started by Adam Embrey, Jul 24, 2003.

  1. Adam Embrey

    Adam Embrey Guest

    Would it be possible to have two internal t1 csu/dsu wic interfaces
    each going to a separate ISP and basically use it as two logical
    routers sending data from one ethernet interface to one T1 and the
    other ethernet interface to the other.

    I am trying to have 2 ISPs comming in for fault tolerance and load
    balancing for my outgoing traffic as well as incoming traffic
    including traffic to my 3005.

    The way I pictured it I would have ATT come into one 2611 and MCI come
    into a second 2611. Behind that I would have a Radware linkproof
    loadbalancing appliance and behind that I will have a PIX 515e. In the
    dmz I would have my 3005 and a FTP server and the internal interface
    of the pix would go to my LAN of course.

    Could I possibly do this using 1 2611 instead of two? The only
    problem I would see is the routers default gateway.
    Adam Embrey, Jul 24, 2003
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  2. Why one 2611 if you are after high availibility, isn't the 2611 a single
    point of failure then ?

    Just my 20c
    Mats Karlsson, Jul 24, 2003
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  3. Yes, you can do this with policy routing.

    interface EthernetX
    ip policy default-att
    interface EthernetY
    ip policy default-mci

    route-map default-att permit 10
    set default interface SerialX

    route-map default-mci permit 10
    set default interface SerialY
    Barry Margolin, Jul 24, 2003
  4. Adam Embrey

    Adam Embrey Guest

    The reason for one 2611 is to get me through budgeting issues untill January.
    Adam Embrey, Jul 24, 2003
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