Multihoming::EBGP with Static default Route

[shehzadtesleem]

Guys;

My 2811 is connected with two ISP,s as below and have VPN with Central branch.

                       /--------- one ISP (ebgp neighbor)          256 Kbps WiMax

Router 2811

                        \----------2nd ISP (default Static Route) 512 Kbps DSL

I want to set DSL as primary and WiMax as secondary but problem is that routes learned via BGP get precedence over default route as they are specific one.

I think i may need to put all static specific routes of central branch over DSL along defautl but I want

any idea if my default route stay active and when it down then BGP neighborship can be establish  (like ip sla tracking.)

[Nagendra Kumar Nainar]

Hi,

Am I assuming right that traffic from LAN connected to 2811 should use ISP2 as primary for all destination and use WiMax as backup only when DSL is down?.

If so, try using PBR by applying NH as DSL next hop and apply it under your LAN interface on 2811.

It will use DSL as primary and it goes down, WiMax will be used.

HTH,

Nagendra

[shehzadtesleem]

Ok; but does their any option above i was talking like ip sla for bgp

[Nagendra Kumar Nainar · Accepted solution]

Hi,

Try EEM.

Configure event to track the interface or  some SLA and configure action to execute a command to unshut BGP neighbor. See below link for EEM,

http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6555/ps6815/config_guide_eem_configuration_for_cisco_integrated_services_router_platforms.html

HTH,

Nagendra