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Load Sharing When Dual-Homed to One ISP Through Multiple Local Routers

The company I work for are having 2 x 10/100 links installed from the same telco, one link to each Datacentre so we can host data for our customers (who are connected to the telcos MPLS network)

this is a private network, no internet transit.

On the end of each link will be a router. 1 managed by the telco and 1 managed by us.

The DCs are linked on the LAN side via a L2 network

DC1        |-R1 ---> Telco Router 1

               |  

DC2        |-R2 ---> Telco Router 2

Say I have these networks on the lan side

VLAN10 192.168.10.0/24

VLAN20 192.168.20.0/24

Outbound Policy

traffic from 192.168.10.0/24 should use the R1 --> Telco Router 1 link

traffic from 192.168.20.0/24 shoud use the R2 --> Telco Router 2 link

if either of the links fail then traffic should flip over to use the adjacent link

Inbound Policy

traffic destined for 192.168.10.0/24 should use the Telco Router 1 --> R1 link

traffic destined for 192.168.20.0/24 should use the Telco Router 2 --> R2 link

if either of the links fail then traffic should flip over to use the adjacent link.

My question is what is the best way of achiving this?

My plan is to run HSRP on on the LAN side

R1

Fa0/0.10 192.168.10.1 Active

Fa0/0.20 192.168.20.1 Standby

R2

Fa0/0.10 192.168.10.1 Standby

Fa0/0.10 192.168.20.1 Active

But Im not sure which routing protocol to go with to advertise these networks.

Best option I have found is to run BGP as per this but I would be interested in peoples opinions

http://www.cisco.com/en/US/tech/tk365/technologies_configuration_example09186a00800945bf.shtml#conf3

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