Anti-spoofing Problem

Hello Friends,

I?m running FP3 on solaris . My Network is like this :

Internal Networks <--> Firewall <--> Router <--> Internet

Now the Problem Part:-
When I try to access router from Internal Network , it never connect, Even 
from the firewall ..same problem. The packets drop from the firewall.
In the firewall log, I found these message :

Internal Net   Action     Service    Source    Destination   Info
eth0            drop	   telnet     x .x.0.10  x.x.0.1    message_info 
address
spoofing

In Topology for Eth0 on the firewall is defined as External (leads out to
the internet), with "Perform Anti-Spoofing based on interface topology"
checked.

Thanks in advance,

NAVTEJ KOHLI

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