On Fri, May 27, 2005 at 02:51:35PM +0200, Marc Haber wrote: > What you need exactly depends on which IPSEC product you use. Most > IPSEC NAT Traversal schemes depend on encapsulating the AH/ESP traffic > into UDP, so you need to open certain UDP ports. You need to NAT > traffic towards your VPN gateway's Port UDP/500 in any case to allow > ISAKMP, and probably you need to open up some more UDP ports. > Netscreen Products tunnel the ESP/AH traffic through UDP/500, so you > should be fine, and Symantec uses UDP/768 for the payload. Other > products might do things differently. just to pad the list--the standard NAT-T port is UDP 4500. the cisco client can use UDP or TCP 10000, and the check point client uses UDP 2746. -j -- "Stewie: You. Fetch me my copy of the Wall Street Journal. You two, fight to the death." --Family Guy