802.1Q and ISA Server

Thomas Shinder Blog » Blog Archive » Does the ISA Firewall Support VLAN Tagging?

Wed, 04 Oct 2006 16:48:07 GMT

PingBack from http://blogs.isaserver.org/shinder/2006/10/04/does-the-isa-firewall-support-vlan-tagging/

re: 802.1Q and ISA Server

isablog — Mon, 09 Oct 2006 06:21:05 GMT

Thanx for the pingback, Tom...

Use http://isatools.org/stuff/isasefw.scrn.png if you want to see a screenshot of my lab ISA with 11 (count 'em) interfaces, of which only two are physical...

re: 802.1Q and ISA Server

Patrick — Tue, 10 Oct 2006 20:40:32 GMT

Stupid question. How did you get 11 interfaces with only 2 NICs?

re: 802.1Q and ISA Server

Iñaki Baranda — Mon, 27 Nov 2006 13:43:20 GMT

Does Isa support NLB and Vlan Tagging on the same NIC?

re: 802.1Q and ISA Server

Jim Harrison (ISA SE) — Fri, 16 Mar 2007 21:33:12 GMT

I get 11 NICs because the NICs we bought include support for 802.1Q-tagged frames and the software the NIC manufacturer provides creates a logical interface for each VLAN in which the physical NIC participates.

Obviously, I can't get into manufacturer specifics, but the question to ask is:

"does this NIC manyufacturer provide software that allows the driver to create logical NICs from 802.1q VLAN associations?"

If they're confused by this question, the answer is likely to be "no".

re: 802.1Q and ISA Server

Jim Harrison (ISA SE) — Fri, 16 Mar 2007 21:34:27 GMT

"Does Isa support NLB and Vlan Tagging on the same NIC?"

As I stated in the original blog, ISA has (and needs) no support for VLANs.

This is strictly the purview of the NIC drivers and software.

re: 802.1Q and ISA Server

Enrico Klein — Mon, 23 Apr 2007 17:52:35 GMT

Hi,

Maybe Inaki asked the wrong question: Will VLAN tagging and NLB work on the same interface?

My understanding is that due to NLB limitations/design, these 2 features cannot be configured on the same NIC. Or am I mistaking?

re: 802.1Q and ISA Server

isablog — Tue, 08 May 2007 19:49:30 GMT

No; ISA has no support for VLANs and therefore has no support statement regarding the combination for NLB + 802.1Q VLANS. This is strictly the NLB team's support area.

The answer from them is "NLB does not support Q-tagged frames on the same interface where NLB is operating."

re: 802.1Q and ISA Server

which lan card? — Wed, 15 Aug 2007 23:31:14 GMT

Please just tell us which lan card you are using in your example. Why would I spend the next 2 weeks researching which lan card will do this, when you could just tell me?

Windows 2008 y las Vlan...

El Ddaz — Sun, 27 Jul 2008 06:30:10 GMT

Hace un par de semanas conocí ( vía MSN) a Elias , por un post que hice y desaparecí al mismo tiempo

Windows 2008 y las Vlan...

David Daniel Arroyo Zari - Ddaz - — Sun, 27 Jul 2008 06:36:24 GMT

Hace un par de semanas conocí ( vía MSN) a Elias , por un post que hice y desaparecí al mismo tiempo