I have a PIX 501. I have multiple users in the field connecting to the 501 via the Cisco VPN Client 4.x. Any one of them can connect to the VPN and everything is fine, until a second person connects. Then, the first connection gets cut off. I have researched the problem and the popular answer is adding:
isakmp nat-traversal 20
to the configuration file in the PIX. I inherited this network and I am not familiar with the PIX at all. How do I add this line to the config?