William, If you want to use a separate address pool for the VPN connections, then why don't you just set it up that way on the RRAS server? The "static pool" essentially acts like DHCP just for the VPN/RRAS clients... Why do you want to complicate it more than necessary? Joe Pochedley A computer terminal is not some clunky old television with a typewriter in front of it. It is an interface where the mind and body can connect with the universe and move bits of it about. -Douglas Adams -----Original Message----- From: William Holmes [mailto:wtholmes@xxxxxxxxxxxxxx] Sent: Wednesday, December 01, 2004 9:48 AM To: [ISAserver.org Discussion List] Subject: [isalist] IP Address Assignment for VPN clients. http://www.ISAserver.org Hello, When configuring a VPN server you are given two choices for address assignment. The first is DHCP and the second is a static address pool. When configured to use a static pool you can essentially assign any subnet to the VPN network. However if you want to use DHCP you are required to choose a network adapter from which to assign addresses. If you choose to use the Internal Interface then your VPN clients will share the address space of the internal network. I would like to use DHCP for address assignement and still have the VPN network setup in its own address space. However this does not seem to be possible. If I enable the DHCP relay agent on the VPN server and point it at my DHCP server there is no way to tell the VPN interface when you make your request "use this subnet". Instead it will use the subnet associated with the adapter chosen on the IP property page. If I am reading this correctly: Choosing a specific adapter is the only way to configure the TCP/IP paramters of the VPN pseudo interface. In otherwords it is the only way to decide on which subnet VPN clients will use. Is there another way? The only thing I can think to do is add another network adapter to my server and use it as the configuration adapter. However this complicates things quite a bit and will require changing my ISA server's config quite a bit. Is there a way to use DHCP and assing the IP subnet to a VPN interface without using a "Real" Interface? Thanks Bill William Holmes (MCP) Department of Computer Science 310 Upson Hall Cornell University Ithaca, NY 14853 wtholmes@xxxxxxxxxxxxxx 607 255-1757 (o) 607 227-6049 (c) ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: JoePochedley@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx