ipfw firewall

T

thebigbanana

hello,
apologies if this has been thoroughly covered in the past.
i am a newbie to ipfw, and not very knowledgeable with unix/linux in general.

i am attempting to set up a firewall to block all traffic to a single user on all ports.

i am attempting to do this on a single computer connected via a home router.

i know the ipv4 address i wish to block, and my current attempt has consisted of

ipfw add deny log all from x.x.x.x to x.x.x.x

i then typed firewall_enable="YES", and restarted my computer

where i have put the same ip for the from and the to address since i dont know if theres a simpler way to do it for a single address.

i have had no luck, the user is continuing to disrupt me from the same ip.

i am using mac os x 10.5. any help would be gratefully appreciated.

cheers,
derek
 
Let's see the output of:
$ sudo ipfw list

How is the user disrupting you? And how did you determine which IP the nasty activity was associated with?
 
sudo ipfw list returns

Code: 
00100 deny log ip from x.x.x.x to x.x.x.x
65535 allow ip from any to any

where ive replaced the actual ip with x's. i used

Code: 
netstat -f inet

to get the ip. its basically a disruptive user in a voip program (my computer is acting as the server) i am using that i would like to block.
 
Does x.x.x.x represent the same IP address twice? That doesn't work. You'd have to use something like:

Code: 
deny log ip from x.x.x.x to any
deny log ip from any to x.x.x.x

You are now blocking traffic from him to him, not from him and to him.
 
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