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Re: Border Router Question - Ingress Filtering
From: "Anders Reed-Mohn" <anders_rm () utepils com>
Date: Fri, 14 Nov 2003 15:10:33 +0100

is it necessary to then add the standard spoofing deny rules 

Yes, it is.

Note that in the rules you quote, you allow traffic from ANY.

In other words, spoofed traffic to the hosts 6, 5, 4 and 3
will get past this filter.

You should (I'd say MUST) use generic anti-spoofing rules, though,
not specific ones for these addresses.

Cheers,
Anders :)

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