ipchains firewall and checkpoint

Posted on 2002-07-09
Last Modified: 2013-11-16
I have found that my ipchains firewall is blocking SecureRemote clients.  I can open the required ports I need to in order to let it through, but I am a bit confused as to what to do about IP Protocol 50.  I guess I am wondering, how do I allow it through an ipchains firewall?

After using a packet sniffer, I can see this traffic (PROTO050), however it does not seem to use a specific port.  In fact both the source and destinations do not include a port number.  I don't quite understand how it exits the computer via TCP/IP without using a port???  I would realy appreciate help as I just don't understand this.
Question by:barthalamu
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LVL 51

Accepted Solution

ahoffmann earned 450 total points
ID: 7141527
ipchains -A forward -p 50 -d -i ippp0 -j ACCEPT
ipchains -A forward -p udp -d --dport 500 -i ippp0 -j ACCEPT
# assuming that your SecureRemote clients are at subnet

Author Comment

ID: 7141954
Thank you once again for your help!!

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