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[FW-1-MAILINGLIST]



Before I explain my problem, I'd like to give a bit of architecture
overview. We are using MS Proxy to authenticate and restrict access to
Internet services. We then allow the proxy to go through the firewall proxy
those services. I also have a mail server that is in our internal network
and a cvp server (NAV for Firewalls)in our private network.

The problem is, randomly several times a day, I see traffic from the proxy
going directly to the firewalls internal NIC. The traffic gets dropped by
rule 0 and logged with "uknown established tcp packet". Then the next few
logs show traffic being stopped by syndefender. At the same time, I see SMTP
traffic being rejected with the error "Unable to connect to the content
security server". Once that happens the firewall gets hosed and requires a
reboot to function properly again. Any ideas??

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