[isp-bgp] Multiple ISP Support

["Mahesh S Kudva" <mahesh.kudva@...>]

Hi all

I have two ISP leased lines. I want to combine them on my Cisco 2620XM 
router without using BGP. I want to configure the second one as a backup 
for the other so that one fails the other one can take up the load.

I am also given a ip block from each ISP's
ISP A --> a.a.a.a/yy (Primary Link)
ISP B --> b.b.b.b/zz (Backup/Secondary Link)

Is it possible to divert all the traffic when primary link goes down to 
the secondary link without using BGP and without changing the IP Address 
to the one provided by the ISP B

Here is what I have tried..

(config)# int s0/0
(config-if)# backup int s0/1
(config-if)# backup delay 5 5
(config)# ip route 0.0.0.0 0.0.0.0 s0/0   (all traffic on primary)
(config)# ip route 0.0.0.0 0.0.0.0 s0/1   (all traffic on secondary, 
                                           fires if primary goes down)
(config)# int e0/0
(config-if)# ip address a.a.a.a/yy
(config-if)# ip address b.b.b.b/zz secondary


I have some servers running on global ip's and cannot change them that 
are used from behind the router also ex:mail server, firewall, vpn server.

All suggestions and ideas are welcome.

Thanks in advance...

Regards & Thanks
================
Mahesh S Kudva





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