Route-Map

[ravindra Krishna]

Hi All,

I have a scenario

R1--->Switch<----R2

            |

            |

          R3

R1 is connected to internet, and ospf is running on all three routers. we have redistributed the static default route in to the R1.

But we want to write a route-map which would block this default route to  R2 and NOT with R3.

Please help us.

Regards,

Ravi

[cadet alain]

Hi,

the only way to advertise a default route into OSPF is to use default-information originate and you can use a route-map

to select which interface to advertise this default to:

route-map ADV_DEF

set interface x/x        interface to which you want to advertise the default route

router ospf x

default-information originate route-map ADV_DEF

Regards

Alain

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[ravindra Krishna]

Hi Alain,

But in this case, as you see R2 and R3 are in same broadcast domain.

R1 is attached to R2 and R3 on same interface.

Or please advice how to block it on R2.

Regards,

Ravi

[cadet alain]

Hi,

yep exactly I answered too fast.

Regards.

Alain

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[Abzal]

Hi,

try this one:

R1:

ip prefix-list default_route permit 0.0.0.0/0

route-map default-static-to-ospf permit 10

match ip address prefix-list default_route

set tag 666

router ospf 1

redistribute static default-static-to-ospf

R3:

route-map default-static-to-ospf deny 10

match tag 666

router ospf 1

distribute-list route-map default-static-to-ospf in

Hope it will help.

Best regards,
Abzal

[blau grana]

in this thread is handled similar problem

https://supportforums.cisco.com/thread/2196984