Description
This article describes how to tag the default route originated by OSPF.
Solution
The example below shows commands used for redistributing the default route with a tag of 1002.
Create an access list for the prefix(s):
config router access-list
edit "Default_originate"
config rule
edit 1
set prefix 0.0.0.0 0.0.0.0
set exact-match enable
next
end
next
end
Create a route map to match the prefix list configured above and set the tag.
config router route-map
edit "Default_tag"
config rule
edit 1
set match-ip-address "Default_originate"
set set-tag 1002
next
end
next
end
Configure the route map under OSPF.
config router ospf
set default-information-originate enable
set default-information-route-map "Default_tag"
end
To verify the tag, it is possible to use the command below:
Before.
Vigneshp # get router info ospf database self-originate
AS External Link States
Link ID ADV Router Age Seq# CkSum Flag Route Tag
0.0.0.0 10.5.20.66 3 8000021b 70d6 0021 E2 0.0.0.0/0 0 <-----
After.
Vigneshp # get router info ospf database self-originate
AS External Link States
Link ID ADV Router Age Seq# CkSum Flag Route Tag
0.0.0.0 10.5.20.66 439 8000021a 2a30 0021 E2 0.0.0.0/0 1002 <-----
