How do I delete a firewall rule?

Question

Level 1

87 points

How do I delete a firewall rule?

A firewall rule is causing some problems for me, rule 12190, how do I delete this rule from the firewall?

It looks like I have to use ipfw from the command line but I am not sure of the syntax.

I tried WaterRoof but when I delete the rule it always returns in the list after rebooting.

I am running as admin not su.

Thanks for your help.

PowerBook, Mac OS X (10.4.10)

Posted on Nov 28, 2007 12:35 AM

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Answer 1

roam

Level 6

13,637 points

Nov 28, 2007 12:48 AM in response to Tokyo

Hi

sudo ipfw delete 12190

check your work with,

ipfw list

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Answer 2

Tokyo Author

Level 1

87 points

Nov 28, 2007 2:38 AM in response to roam

Thanks so much for your help.

The original problem was that the firewall rule was blocking the IP address at the end of my VPN connection.

I followed your commands and deleted the rule successfully. This enabled me to connect to Exchange over the VPN.

However, strange things happen. I rebooted and the rule reappears in the list.

I looked at the start-up list of rules and it is not there.

Any thoughts on why it reappears in the list after rebooting?

The strange thing is that the rule now seems to allow the VPN to connect. Though I will do a little more testing to see if this is consistent.

Thanks again. I can now access my email again.

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Answer 3

roam

Level 6

13,637 points

Nov 28, 2007 3:44 AM in response to Tokyo

It would seem that VPN is adding that line to ipfw on restart.

Perhaps the restart corrected the VPN Network connection.

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