Vlans and PIX question

Jan 27, 2010 3 Replies
Vlans and PIX question open original image

Thanks again to everyone who replied to my last post... I've got another project related to the same VMWare server...



I have a situation where I need to set up network access for a new virtual server in a vlan where most of the existing hosts are on the other side of a PIX 525 (running 7.2(2)).



The other hosts in the vlan are connected to a 4507 core switch, which is connected to an interface which is the DMZ and has the default gateway address of that vlan. Actually, the vlan, let's use the number



10, was set up at one point but is currently shutdown. The connection to the PIX is an access port in the 10 vlan. The inside interface is connected to another port on the same 4507. The port the inside interface is connected to is an access port in the central site's core vlan... let's use 20 for this discussion.

The VMWare server is 2 hops away, first through an ATM connection to a



8540 (set up with IRB) to a 3560. Two other things about the configuration that might be important: (1) there is a second PIX in an active/standby configuration, and (2) the inside ports that the two PIXes are connected to is the source in a port mirror to a port that a content filter is connected to.

I'm guessing that some sort of routing needs to be set up on the PIX (es)... what is the best method of doing that? Since this is a production network, I was hoping to have to change as little as possible (obviously...)


I have some problems understanding your scenario. Some sort of a schematic would be helpful.

In general, a Pix interface can be divided up into several virtual interfaces. Each interface may belong to a different VLAN. Could this be a solution for your scenario?

Regards, Christoph Gartmann

Yes, I should have known I really needed a diagram. I'll put something together and post it. Thanks!

I've got a diagram together and hopefully I've got everything on there that I need to...

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The ports on the 4507R going to the pix are both access ports in the appropriate vlan. All other ports should be trunk ports, currently.

Thanks!

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