North American Network Operators Group
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Re: SYN spoofing
- From: Forrest W. Christian
- Date: Wed Jul 28 21:41:31 1999
On Wed, 28 Jul 1999, Daniel Senie wrote:
> Cisco implemened a feature called "Unicast RPF" That disallows
> forwarding of packets on an interface where a reverse path is not
> present. The command to activate it is:
>
> ip verify unicast reverse-path
This only works if you have CEF turned on. And... Turning CEF on in a
4500 series router w/64mb ram & 2 BGP views just plain isn't good.
Now, if we could get CEF to only cache non BGP routes....
- Forrest W. Christian (forrestc@imach.com) KD7EHZ
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