This has got me wondering... I don't see any reason why you couldn't use a normal switch (non-routing), and plug multiple subnets into it. Then you could add multiple IPs (one for each subnet) on a single ISA NIC. As long as the subnet mask filters out the traffic, it would be the equivalent of VLANs. That is the same concept RainConnect uses to handle up to 32 connections on one NIC, although they use a miniport driver instead to insert the multiple IPs. But I agree (with later posts) that before a definite solution could be defined, we would need more information about hardware, connection type, IP ranges, etc... I know where he's coming from though, I'm running three internal Networks, one perimeter network, and one (actually multiple w/Rainconnect) external network, all off of one ISA box. We are using a "true" server though, so there is lots of room for expansion. I.e., we have several dual NIC cards, and there are still several PCI slots left empty. ________________________________ From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Monday, May 09, 2005 13:05 To: [ISAserver.org Discussion List] Subject: [isalist] RE: Multihomed ISA Server--Please your opinion is very important http://www.ISAserver.org How about 802.1q VLAN tagging? Tom www.isaserver.org/shinder <http://www.isaserver.org/shinder> Tom and Deb Shinder's Configuring ISA Server 2004 http://tinyurl.com/3xqb7 <http://tinyurl.com/3xqb7> MVP -- ISA Firewalls ________________________________ From: Troy Radtke [mailto:TRadtke@xxxxxxxxxxxx] Sent: Monday, May 09, 2005 12:04 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Multihomed ISA Server--Please your opinion is very important http://www.ISAserver.org Quad PCI NICs in two slots gives you 8 and 8 USB NICs can be done. It'd be ugly.... and I'd hate to try and figure out what USB NIC is which when you have an issue..... And USB is a polled bus so your throughput drops with more devices just even plugged into it.... Now, technically, you could put in a 4 slot riser card if your PCI slot supplies enough voltage to the bus. That right there would give him 16 NIC ports with quad cards..... But then you'd have to lose the case for the system...... Bleah, any way you cut it, change your network infrastructure...... You're going about this the hard way.... -----Original Message----- From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] Sent: Monday, May 09, 2005 11:50 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Multihomed ISA Server--Please your opinion is very important http://www.ISAserver.org Absolutely not. I would even doubt the MB would be able to handle it if you could find such a device. What you need to use is a managed layer 3 switch connected to the LAN nic of the server. Then you use the switch to create and control access to your various internal networks. John T eServices For You -----Original Message----- From: hodakara kara [mailto:hatem20102011@xxxxxxxxx] Sent: Monday, May 09, 2005 8:37 AM To: [ISAserver.org Discussion List] Subject: [isalist] Multihomed ISA Server--Please your opinion is very important http://www.ISAserver.org dear Sir, i have only one server here with 2 PCI , For 2 Network Cards, and 2 COM Ports & 4 USB Ports. this server will work as Mulithomed DHCP server for 16 Companies in my organization. so is there any device i can install in-order to extend the PCI Ports from 2 to become 16 and each network card attached to it , will conect to phisical network on the organization. can you please Provide me with thia solutions ?