Hi Experts,
Can someone please help me understand if this is an expected behavior?
I am trying to set wide-metrics-only in the following topology:
R1----R2---R3
Being R1 on L2 and R3 on L1, of course R2 will on L1/L2.
When I set the wide-metrics-only on R1 for L2, on R2 for L1 and L2 and R3 on L1, I am able to see routes leaking from L1 to L2 but no the opposite, when I looked at R3 routing table I am still receivig the default route 0.0.0.0/0 as an internal preference 15.
Why am I not receiving specifi prefixes from R1 via?
Please see the configuration,
R1:
export EXPORT;
level 2 wide-metrics-only;
interface lt-0/0/0.0 {
level 1 disable;
}
from {
protocol direct;
route-filter 10.0.1.1/24 exact; ------ This prefix is the one I want to be received on R3
}
then accept;
R2:
[edit logical-systems R2]
emoraga@Cacique# show protocols isis
level 2 wide-metrics-only;
level 1 wide-metrics-only;
interface lt-0/0/0.1 {
level 1 disable;
}
interface lt-0/0/0.2 {
level 2 disable;
}
R3:
[edit logical-systems R3]
emoraga@Cacique# show protocols
isis {
export EXPORT;
level 1 wide-metrics-only;
interface lt-0/0/0.3 {
level 2 disable;
}
}
[edit logical-systems R3]
emoraga@Cacique# show policy-options
policy-statement EXPORT {
from {
protocol direct;
route-filter 10.0.0.1/24 exact; ---- This is the prefix I am sending to R1.
}
then accept;
}
Which I do see on R1:
emoraga@Cacique# run show route 10.0.0.0 logical-system R1
inet.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
10.0.0.0/24 *[IS-IS/18] 00:06:15, metric 30
> to 172.16.0.1 via lt-0/0/0.0
but I am not seeing this on R3, what I see is the default route:
emoraga@Cacique# run show route 10.0.1.0 logical-system R3
inet.0: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0.0.0.0/0 *[IS-IS/15] 01:05:49, metric 10
> to 172.16.0.2 via lt-0/0/0.3
Is this expected?
why is the leaking only happening from L1 to L2?
I would have expected to see both, the default and the specific routes.
Any clue?