On Thu, Nov 04, 2004 at 11:56:54AM -0600, Les Mikesell wrote: > However there is a new standard > for NAT traversal for IPsec and a recent Windows update adds > it for win2k and XP. I don't know if it needs additional support > at the NAT gateway or if you need matching versions at both > ends, though. Yes, IPSEC borks when one of the endpoints goes through NAT. I agree with Les, you seem to need NAT-T, and both the server and client need to support this, so check your VPN documentation. I don't think that there's any need in configuring anything specific on the NAT gateway, as long as the firewall allows UDP port 4500 (NAT-T) to flow. .../Bosse -- Bosse Klykken - http://www.klykken.com/~bosse Keep staring. I might do a trick.