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FWSM on a 6509

A client of mine purchased 2 FWSM modules for a 6509 a few years ago. They have never been used but are installed. I think I know the answer to this question, but I'll ask to be sure.

Does the PIX OS (FWSM) support secondary addresses on it's interfaces? if so how many?

I suspect no, but I need to be sure before I tell this person that they need to reorg their entire network.

They have 5 secondary address on the same VLAN. They are using it like a router on a stick, but with no VLANS.

Thanks,

Phil

1 ACCEPTED SOLUTION

Accepted Solutions
Bronze

Re: FWSM on a 6509

Hello,

You are correct. The pix/FWSM/ASA support vlan interfaces and subinterfaces (the term for vlan interfaces in later code versions), but do not support multinetting/secondary IP addresses like IOS does.

--Jason

Please rate this message if it solves some or all of your issue.

4 REPLIES
Bronze

Re: FWSM on a 6509

Hello,

You are correct. The pix/FWSM/ASA support vlan interfaces and subinterfaces (the term for vlan interfaces in later code versions), but do not support multinetting/secondary IP addresses like IOS does.

--Jason

Please rate this message if it solves some or all of your issue.

New Member

Re: FWSM on a 6509

Thanks.

Would this type of thing be supported if I was running the firewall in transparent mode?

Thanks,

Phil

New Member

Re: FWSM on a 6509

Let me explain further. I will preface this with the fact that I know that the network needs to redesigned. This is not my animal, I have just walked into a disaster. Re-design is not possible at this point, but some secutity is needed.

The network is composed of 2 X 6509's that are connected together, as well as cross connected to 2 X 4006's. The 6509's run VLAN2 with 5 secondary addresses on the vlan interface. The 4006's run VLAN3 that also have multiple secondary addresses. I need to be able to secure the traffic that flows between VLAN2 and VLAN3.

I figure that if I run the FWSM in transparent mode I can configure the port to the 4006's as 1 side of the transparent interface and another port in VLAN2 as the other interface.

Thoughts? (Network engineers should know better than to do something like what has been done to this company!!!!)

Re: FWSM on a 6509

If your client bought it 'few years' ago, then I think you really need to check the version loaded into it. It might not suppor new features available in current/latest FWSM now.

It may run on older version, FWSM Version 1.x(x).

Newer FWSM version FWSM 3.x (slighty older FWSM 2.x) has licensed features, i.e virtual-firewall.

You might need to check that before making a move:

http://www.cisco.com/en/US/products/hw/modules/ps2706/ps4452/index.html

HTH

AK

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