RE: ISP Multihoming Question

From: Alexander Arsenyev (GU/ETL) (alexander.arsenyev@ericsson.com)
Date: Fri Aug 06 2004 - 17:45:49 GMT-3


Hello Scot,

Please have a look into "Reliable static route backup using object tracking" feature, see
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123newft/123limit/123x/123xe/dbackupx.htm
You will need to carefully examine Your traffic flow and define appropriate static routes for load balancing.
At first glance 2 static routes (0.0.0.0/1 and 128.0.0.0/1) will give You very coarse load balancing, then
You could fine tune them and/or use PBR.
HTH,
Cheers
Alex

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Scot Peter
Sent: 06 August 2004 08:12
To: ccielab@groupstudy.com
Subject: ISP Multihoming Question

Hello There,

I have a scenario where I have one Firewall and a Router
connecting to two ISPs.
I have private IP addressing inside my network; public
IPs will be given by two ISPs and I need to configure NAT for both IP ranges.
I would like to know is there any possibility to have failover/loadbalanceing
between two ISPs without having BGP/own Public IPs.

ISP1 ISP2
 |
|
 ------------
      |
     RTR
      |
   Firewall
      |
LAN (10.x.x.x)
Regards
Pet



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