They can't. They don't. What they do is tell the installers that they only support Windows XP. When Installer Joe finds Windows Server, he's found an "out" if things don't work as expected. Trust me; I've had to fight this particular battle more than once. My favorite example: (me) "I'm not getting ARPs from my upstream router" (VZ) "what is your ipconfig/all?" (me) <responds with this data (again)> (VZ) "can you ping the default gateway?" (me) "no; the router doesn't respond to the ARP requests." (VZ) "yes, I heard that - what I need to know is whether or not you can ping your default gateway" (me) "no, the default gateway does not respond to ARP, so it never sees a ping request" (VZ) "sir, can you please try to ping <remoteipaddress>" (me) "it won't response because it'll never see the ping that I can't send because my router doesn't respond to ARPs requests" ..and so on for most of the day... From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thor (Hammer of God) Sent: Monday, March 12, 2007 9:32 PM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Re: ISA Server 2004/2006 & Verizon DSL Connection Since when does the DCHPDiscover message contain OS infoz? I'm not aware of any mechanism that allows a DHCP server to identify the client OS before assigning an address.. There are several methods to secure DHCP assignment, but how exactly could Verizon identify the OS type? t ----- Original Message ----- From: John T (lists) <mailto:johnlist@xxxxxxxxxxxxxxxxxxx> To: isalist@xxxxxxxxxxxxx Sent: Monday, March 12, 2007 4:45 PM Subject: [isalist] Re: ISA Server 2004/2006 & Verizon DSL Connection Your Verizon DSL service, being residential, may be configured to only assign IPs to non-server OS. You might try reading your TOS with them and it may mention this. John T -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Tee Darling Sent: Monday, March 12, 2007 8:24 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Re: ISA Server 2004/2006 & Verizon DSL Connection It's residential. I don't know about MAC or NAT router (Linksys) since I did not ask them that question. My only concern is how do I make it work with ISA Server 2006 on a Windows 2003 server? On 3/12/07, John T (lists) <johnlist@xxxxxxxxxxxxxxxxxxx> wrote: Is the Verizon DSL service residential or business? They said it only works with Windows Workstations, so does that mean that it will not work with a MAC or with a firewall such as Sonicwall or even a basic NAT router such as a Linksys? John T -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Tee Darling Sent: Monday, March 12, 2007 7:32 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] ISA Server 2004/2006 & Verizon DSL Connection ISA Gurus, Where are you guys hiding? I need your help out here :). Okay, here is my problem. I have a Windows Server 2003, XP, and Vista network setup. I have a Verizon DSL that connects to my network. When I connect the Verizon DSL box (Westell Wirespeed) to any of my workstations, I get a public DHCP assigned IP address from Verizon. That's Great. Everything works fine. But when I connect the Verizon DSL to my Windows Server 2003, the Verizon box is not able to assign the Public IP address to the server. According to Verizon, their DSL box only works with Windows workstations and not Windows servers. My plan is to setup my network so that my Windows Server 2003 which has 2 NICS in it will have ISA Server 2004 or 2006 install on it. Actually, I will install ISA Server 2006 since I have worked with the 2004 edition for over a year and a half now. One of the NIC will be connected to the Internal LAN and the other NIC will be connected to the Verizon Box. But since I cannot connect the Verizon box directly to the 2nd NIC because of the limitation that box has with Windows version of the server, what are some of the connections work around? I even tried to connect the 2nd NIC and the Verizon box to an unmanaged switch but that was no good. Anyone out there with a very good idea to help me make this connection work? I really need the ISA Server in my environment. Thanks all for any idea you may have. Tee All mail to and from this domain is GFI-scanned.