I've searched the forums, but cannot find my answer. I found that OpenDNSUpdater uses TCP 443, which is fine. But I see denied traffic in my firewall logs showing that it is trying to use TCP port 1. Any thoughts?
Deny tcp src inside:192.168.2.28/53372 dst outside:184.108.40.206/1
If this is truly required, what is the required destination network range?
Please sign in to leave a comment.