We have a Cisco PIX firewall with version 6.1.
I am having an issue with simultaneous users making a VPN connection to the corporate office from a remote location. One pc can make the VPN connection ok, but when the other pc at that same location makes the connection, the first pc gets knocked off. I have noticed that the IP address taken from the IP pool is the same for both PC's, which is part of the issue.
I have read through user's posts and found that we need isakmp nat-traversal enabled, however we are on firmware version 6.1, not 6.3, and 6.1 does not support this command
Are their any alternatives to upgrading to 6.3 or later to help fix this issue? Is their something in version 6.1 we can do to get this to work correctly?
Thanks in advance.
Gary