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Port Triggering in Sveasoft

02/21/05

  11:43:46 am, by The Dreamer   , 161 words  
Categories: Networking

Port Triggering in Sveasoft

Well, I was kind of hoping I could do it all using just the web interface....and it was close, I suppose.

There's probably some bug in how the iptables are set for the triggering from the web interface. So, I added some iptables commands to rc_firewall for port triggering, and has it working.

Down side, the way I have the rules jammed into the iptables...is that they occur before the logging events, so I lose the ability to see traffic that is passed by a trigger or traffic arrives when there wasn't a trigger.... I'm running RC6a, and I hear pre7 just released...though I'm not ready to rush out to this version just yet.

Now, what I did exactly was, I left the port trigger definitions in the web interface, and added lines like this to rc_firewall:

iptables -t nat -A PREROUTING -i vlan1 -p tcp --dport 113 -j TRIGGER --trigger-type dnat --trigger-proto tcp --trigger-match 25 --trigger-relate 113

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Now instead of subjecting some poor random forum to a long rambling thought, I will try to consolidate those things into this blog where they can be more easily ignored profess to be collected thoughts from my mind.

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