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03.01.2008 at 04:00PM PST, ID: 23206825
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8.8

Cisco Pix + Cisco 837 Router - Configuration Questions ...

Asked by Jase_x in Cisco PIX Firewall, Network Routers

Tags: , , ,

Hi folks,

Maybe someone here can help.  I have a Cisco 837 ADSL router connected to a std home BT ADSL line.  I wish to connect this router to a 500 series Cisco PIX.

Initially I thought the best way to do this was stick the 837 into bridging mode and let the outside interface of the PIX deal with the dialing side of things.  However, I am told the PIX does not support PPPoA just PPPoE.  Is that correct ?

So my next thought was configure the the 837 properly, as it was designed, as a router.  I.e. the outside (Internet) interface of the 837 has a BT assigned DHCP address.  The Ethernet interface has a local 192.168.1.0/24 address as does the outside interface of the PIX.

The PIX then has another 192.168.2.0 address on the inside interface containing all my LAN PC's.

I would then go on to let the 837 do PAT and static NAT where appropriate.  Obviously if I had 3 outside IP addresses I could just assign one to the PIX and not have this problem, but, hey thats life :)

So my question be, will the 2nd method I mention work ok and more importantly what are the best practices with this sort of thing ?

I would try them myself but at the moment the PIX is at work ...

Thanks for your time foks,

- J
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About this solution

Zones: Cisco PIX Firewall, Network Routers
Tags: Cisco, 800 Series, Router, PIX Setup
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Solution Provided By: PeteLong
Participating Experts: 1
Solution Grade: B
 
 
 
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