The VPN3000 client will work for NT4 & Win9x, it requires pix 5.2(1) and I have it running on ver 5.3(1). You could also use the pptp client in Win2K until the unified client is release later this year-Steve
If you are not seeing any traffic to your acs server, including no failures in the acs logs, you might want to check to make sure that the 5300 & the acs server are using the same ports for radius authentication and accouting (1645 & 1646 / 1812 & 18...
You are correct, the current version doesn't support win2k. Furthermore, the ipsec stack built into win2k does not work with the pix vpn becuase of MS late addition of the requirement for l2tp support. It is my understanding that the pix will support...