From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Q312461) Description of problem: I have 2 different servers with Redhat 7.2 installed. Both have all the current updates installed. Kernel is 2.4.9-13.... If I disable iptables and run the cisco vpn client, everything works as advertised. When I turn iptables on, all seems well until I try to access something that needs to go down the vpn. Then the box dies. No response, can't kill the X Server or 3 finger the machine. Requires a power cycle. There are no strange messages in the log files either. Not sure how to go about tracking this down. No core dumps or anything to look at. Only thing is it is reproducable on 2 different machines. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. /etc/rc.d/init.d/iptables start 2. /usr/local/bin/vpnclient connect foo 3. nslookup www.google.com Machine dies at this point. Actual Results: VPN makes secure connection and all looks fine, until you try to do a nslookup, dig, lynx, ping, netscape, etc. Expected Results: Machine not to lock up completly. Additional info:
Since it locks up the machine, it's caused by the proprietary kernel modules from Cisco. This is their bug, not ours.