How to add a new ISP to my network

Unanswered Question
Apr 9th, 2009

Hi guys, I will try my best to be as clear as possible.

I'm junior Network Admin and just start to work in this small company.

Currently i have one ISP, 100mbps symetric link:


Each CiscoPix is also connect to these differents domains through different nic:

Hosting SW

Dmz SW

Prod SW

Dev SW

I do not have additional Network Interface to connect new devices on my CiscoPIX...

NOW i have a new ISP coming soon with a 1 Gbps symetric Link

to have redundancy and improve some of my Prod services

What would be the best way to interconnect this new link to my network ?

And of course i want to keep my network behide a firewall.

I guess i would buy one or two new PIX and interconnect with the current switches. But does a pix can manage a Gbps link ?

Anyway please let me know if you have any advices.



I have this problem too.
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Florin Barhala Thu, 04/09/2009 - 07:11

First of all, I don't understand why do you have two PIX devices; each of them has one public IP and function as a router also ?

How many eth ports does your PIX equipment has? Thu, 04/09/2009 - 07:19

Hi Florin,

The previous admin installed two PIX linked failover.

-each PIX is connected to the ISP1 switch and has it Public IP.

-each PIX has: 5 Network interfaces Total Thu, 04/09/2009 - 07:25

Each network interface:



card #1 :eth

card #2 :OpticalFiber

card #3 :OpticalFiber

And yes they act as router also.


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