[c-nsp] ip verify unicast reverse-path

Peter Hicks peter.hicks at poggs.co.uk
Thu Oct 13 05:14:13 EDT 2005


All,

Cat4503 with a SupII+ in Paris, IOS 12.2(25)EW.  We have a 100Mb LAN
extension-type circuit on Gi2/38 with the port configured as follows:

   interface GigabitEthernet2/48
    no switchport
    ip address x.x.x.246 255.255.255.252
   end

I want to enable unicast RPF on the port (so that we don't end up with a
'working' situation of asymmetric routing), but it doesn't appear to be an
option.

Is it possible to use uRPF on the 4500 series with this IOS, or do I need a
different Sup or newer IOS?


Peter.



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