North American Network Operators Group
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Re: address spoofing

  • From: Tim Finkenstadt
  • Date: Fri Apr 23 01:02:09 1999 
> i.e. at best these come from broken places.
> 
> the loopback network
> 
>     deny ip 127.0.0.0 0.255.255.255 any (375 matches)

This can come from DNS servers with 127.0.0.1 in one of the config files.
I recall from a seminar/class by Cricket that this is why you don't use
127.0.0.1 in /etc/resolv.conf, IIRC.

tim