Policy Based Routing on Cisco L3 Switch 3550 with IOS 12.1(22)

Discussion in 'Cisco' started by Al, Apr 30, 2008.

  1. Al

    Al Guest

    Hi all,

    I have a 3550 L3 switch and I am trying to implement policy based
    routing. My setup is as follows:

    Switch 3550------- Appliance 1
    | \
    | \
    | \
    Firewall1 Firewall 2
    | |
    | |
    VPN 1 VPN 2
    | |
    | |
    |__Firewall 3__|

    Currently, the switch sends all traffic bound for PC2 through Firewall

    I want traffic from Appliance 1 going to PC2 to pass through Firewall
    2 instead.

    To do this, I went into the Switch config and added the following:

    access-list 123 permit ip y.y.y.y x.x.x.x
    route-map test_map permit 10
    match ip address 123
    set ip next-hop (IP of inside interface of Firewall 2)
    int vlan1
    ip policy route-map test_map

    As far as I can tell, It's set up according to examples in Cisco
    documentation, but doesn't work. Can anyone see something I missed?


    Al, Apr 30, 2008
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  2. Al

    Bod43 Guest

    Policy Routing with Catalyst 3550 Series Switch Configuration Example

    "You must modify the SDM template, such that it supports the 144-bit
    Layer 3 TCAM"

    Get that bit?
    Bod43, Apr 30, 2008
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  3. Al

    Al Guest

    I performed this step at the very beginning... After logging into the
    switch I entered the command:

    sdm prefered routing

    I then rebooted the switch. Once the switch reloaded, I entered the
    Access-list, route-maps, etc. When I do a show sdm prefered, the IOS
    confirms the current template is the Routing Template.

    Al, May 1, 2008
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