I have a new Barracuda Spam firewall to deploy. On the border router I configured all incoming SMTP traffic from the T1 circuit to forwarded to Barracuda appliance and from there it is relayed to Checkpoint Firewall which is NAT to our internal Exchange 2003 server.
1. From the router I can ping Barracuda.
2. On the router I see access-list 180 counter increasing.
3. On the Barracuda I can ping 188.8.131.52.
4. On the Barracuda, I don't see any incoming SMTP traffic at all. I'm not sure what the problem is...?
Please read the my attached graph..
ip policy route-map SMTP_MAP
access-list 180 permit tcp any host 184.108.40.206 eq smtp
The Fa0/0 interface of your router has a /28 mask which does not include the IP address of the Barracuda (220.127.116.11). If this is a flat network, your router will fail to forward the SMTP traffic to the Barracuda, whilst you still would see the match in the access list. It could be you have a simple connectivity issue due to an addressing problem. I would suggest to test with a /27 mask. The rest of your setup looks fine.
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