Load balancing without BGP

emaamur2006 · ‎08-30-2007

Hi all

Need a solution where my client is doing loadbalancing between client and 2 ISP, no BGP between ISP and Client, just default routes

Any ideas how i can do this

thanks

Timo

mohammedmahmoud · ‎08-30-2007

Hi Timo,

You can go for NATing:

!

interface FastEthernet0/0

ip address

ip nat inside

!

interface Serial0/0

description ***ISP1***

ip address

ip nat outside

!

interface Serial0/1

description ***ISP2**

ip address

ip nat outside

!

ip nat inside source route-map ISP1_NAT ...

ip nat inside source route-map ISP2_NAT ...

!

access-list 1 permit

!

route-map ISP1_NAT permit 10

match ip address 1

match interface Serial0/0

!

route-map ISP2_NAT permit 10

match ip address 1

match interface Serial0/1

!

ip route 0.0.0.0 0.0.0.0 serial0/0

ip route 0.0.0.0 0.0.0.0 serial0/1

HTH,

Mohammed Mahmoud.

Pavel Bykov · ‎08-30-2007

Great idea from Mohammed.

Also, if there are more than one link to the same destination from one router, it will automatically load-balance based on switching method used. For example CEF load balances per flow by default.