Since upgrading a Checkpoint FW1 4.1SP6 to NG AI I've noticed that
AI drops a lot more DNS traffic.
It is coming from the rule that blocks traffic w/a destination
of the firewall. I assume my NATed DNS servers have made a
request to these dropped servers, but the UDP reply is taking too
long to get back to the DNS server.
UDP Virtual session timeout is set to 40 seconds.
Should I try increasing this? After 40 seconds, I am
sure the DNS server has given waiting for a response - so
this probably wouldn't help.
I don't have UDP protocol enforcement enabled at the moment,
so that's not it.
Ideas?
Thanks!
Edwin Davidson
http://www.primeinc.com
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