OSPF Intra and Inter areas

[mjbriggs]

Hi All..I am installing a small OSPF network with encryption and mutliple routes . At the core I am using area0 for the LAN and area10 for the WAN . Is there a way of configuring the core to statefully use the Inter area routes in preference to the Intra routes . I have a problem with the crypto SAs not forming correctly due to asymetric routing .

Many thanks

Mike

[deilert]

No OSPF will always prefer an interarea router over an intrarea route . My suggestion would be to use the ip's of the directly connected links to form your IPsec Tunnel , that way they would be in the same area and see the route as directly connected.

[mazhar71]

Hi,

Maybe you miswritten your words. OSPF prefers a route in that way:

1- Most specific route

2- Inra-area route

3- Inter-area

4- External type1 route

5- External type2 route

6- If there are more than 1 route at this stage prefer the route having lowest cost

7- If there is multiple route having the same cost equal cost load balancing occurs at this stage.

Best Regards

[ashok_boin]

Hi,

I cann't understand your requirement of overriding Inter area routes preference with Intra area routes.

Please elaborate the problem a little bit that will help to answer.

Regards...

Ashok.