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TOPIC: IPCOP IPTABLES Rule

IPCOP IPTABLES Rule 9 years 2 weeks ago #24031

Okay first off I am very much a newbie when it comes to iptables based firewalls. Now with that out of the way I call upon the masters here for some needed guidance.

The setup

Local is (green in ipcop) IP - 192.168.1.254/24

I have OpenVPN installed. I have clients in the 192.168.20.0/24. The clients are windows based and the problem is frequent disconnects without near constant activity. I see this in the logs of the firewall which I *think* is a hint to the problem.


14:38:31 NEW not SYN? eth0 TCP
192.168.1.231
139(NETBIOS-SSN) :::::
192.168.20.6
1092
14:38:34 NEW not SYN? eth0 TCP
192.168.1.231
139(NETBIOS-SSN) :::::
192.168.20.6
1092
14:38:40 NEW not SYN? eth0 TCP
192.168.1.231
139(NETBIOS-SSN) :::::
192.168.20.6
1092


The 192.168.1.x is the local network and the 192.168.20.6 is a remote openvpn client. I am thinking I need a custom rule in rc.firewall.local to allow the traffic?

Thanks for all your help!
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Re: IPCOP IPTABLES Rule 9 years 2 weeks ago #24049

  • DaLight
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If the clients actually manage to connect and operate normally before disconnection takes place, I would doubt if the problem is to do with firewall rules.
I would look more to the transport medium. Have you tried connecting from other locations?
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