ISIS route filtering from database to route table on IOS XR

[allalamine]

Hello,

Is there any way to filter routes from ISIS database to routing table on ASR9k ?

It is possible on IOS XE, Huawei, Nokia and other platforms.

Thanks all

[nkarpysh · Accepted solution]

Hello,

Distribute-List for inbound filtering is supported in IOS-XR from 6.4.1. 
As an alternative, you can assign an admin distance of 255 (untrusted - not 
inserted in RIB) to the selected prefixes via below command :

RP/0/RP0/CPU0:router(config)# router isis <name>
RP/0/RP0/CPU0:router(config-isis)# address-family ipv4 unicast
RP/0/RP0/CPU0:router(config-isis-af)# distance 255 0.0.0.0/0 <prefix-list>

here below the CCO doc for the related command :

 http://www.cisco.com/c/en/us/td/docs/routers/xr12000/software/xr12k_r4-2/routing/command/reference/b_routing_cr42xr12k/b_routing_cr42xr12k_chapter_011.html#wp7222039700

HTH

Niko

[allalamine]

It's working !

I wanna add that prefix-set won't work, we need to use prefix-list :

ipv4 prefix-list subnetsToFilter permit 10.0.0.0/24

!