I'm an IT consultant. Several customers use Cisco PIX501 and 506 firewalls, and I use the Cisco VPN Client ver. 4.0.5 (D) to establish VPN connections to them with no problems. I leave the sticky details of configuring the PIXes to an associate. My question is, can I also use this same client to establish a VPN connection to my D-Link DFL-200 firewall? I did a quick try and didn't get anywhere, and this question is to make sure I'm not wasting my time. I would be willing to have both the Cisco and D-Link VPN clients on my system, but they don't seem to want to coexist. General comments on the pros and cons of til PIX 501 vs. DFL-200 would also be welcome.