L2TP also requires a user certificate on the user's computer, no? --Alexander > -----Original Message----- > From: Mikkel Høyrup [mailto:mih@xxxxxxxxxxx] > Sent: Wednesday, November 07, 2001 11:10 AM > To: [ISAserver.org Discussion List] > Subject: [isalist] RE: VPN Protocol > > > http://www.ISAserver.org > > > Some of the differences is: > > L2TP requires a certificate to be installed on the server - > either a certificate from Verising etc. or a certificate you > create yourself with Win2k server. > > Also, L2TP doesn't support NAT, so if your clients are using > NAT - you have to use PPTP. > > Best regards, > Mikkel