The PIX does not provide the function of sending packets from ISPA
back to ISPA and packets from ISPB back to ISPB. This is the gateways
routers function. The PIX will send all packets to the Gateway router
which should be it's default gateway 0/0.
When you are multihomed to two or more ISP's it is preferable that you
use BGP for routing between your AS and the ISP's AS. BGP will
determine what routes from ISPA and ISPB are injected into the
gateway's routers routing table. If you are not satisfied with BGP's
default router selection process you can manipulate the BGP decision
process by changing the local preference attribut and many other
attributes.
-------
- ISPA (AS1)
- -------
------- --------------- - (BGP)
PIX | ----- |Gateway Router|--BGP--
------- --------------- (AS3)-
- (BGP)
- -------
ISPB (AS2)
-------
_______________________________
Michael Olavarria
Director
Global Network Operations, Corporate IT
Jupiter Media Metrix, Inc.
2 Huntington Quadrangle
Suite 3S2
Melville, NY 11747
Phone: 516-734-1310
Fax: 516-734-2100
Mobile: 914-403-4238
-----Original Message-----
From: Kuff, Hal [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 24, 2001 8:44 PM
To: firewall
Subject: Two ISP's with PIX
How does one go about using two isp's with a Pix and a gateway
router and insure packets coming in from ISPA go back to ISPA rather
than
ISPB?
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