Originally posted by Finny:
I'm just setting up my wireless network for the first time with 10.3.
With the firewall on, and internet sharing enabled, the laptop downstream can't access the pop server for mail. Turn off the firewall, everything works normally.
Is there a port I have to open? I opened 443.
Having not tried Internet Connection Sharing on OS X, I would imagine that if the firewall is enabled that the same policy is applied to all interfaces.
With this in mind you will need to edit the policy applied to whichever interface the internal clients are trying to access the Internet from. What is the output of the CLI command
sudo ipfw list when both ICS and the Firewall are enabled? My guess would be that the same policy is loaded whether ICS is on or not.
Soo, the problem is that IIRC there is a rule that states
deny tcp from any to any and there is nothing prior to that in the list that would be a permit for TCP or any other IP protocol, save for traffic coming out of the interface as opposed to in.
The
via keyword would come in handy in this case.
Following me at all?
POP3 is TCP port 110 BTW.
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