Cisco – command in Cisco IOS to show all routes tagged with a specific tag

ciscoiosrouting

In Cisco IOS, if I have a route-map entry as follows:

route-map redistribute deny 10
 match tag 65000 100
!

Is there a 'show' command that will give me a list of all routes that will match that stanza?

EDIT:
To those thinking about using 'show ip route' and 'inc', the summary form of show ip route doesn't include tag information:

Router>show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is x.x.x.x to network 0.0.0.0

B    216.221.5.0/24 [20/2948] via 208.51.134.254, 1d19h
B    216.187.99.0/24 [20/0] via 4.69.184.193, 1d19h
B    210.51.225.0/24 [20/0] via 157.130.10.233, 1d19h
...

It is only displayed when you provide a prefix as an argument:

route-views.oregon-ix.net>show ip route 216.221.5.0
Routing entry for 216.221.5.0/24
  Known via "bgp 6447", distance 20, metric 2948
  Tag 3549, type external
  Last update from 208.51.134.254 1d19h ago
  Routing Descriptor Blocks:
  * 208.51.134.254, from 208.51.134.254, 1d19h ago
      Route metric is 2948, traffic share count is 1
      AS Hops 2
      **Route tag 3549**

So one 'show ip route' command doesn't let you get information about all routes tagged with a specific tag.

Best Answer

I haven't fully tried this, but it occurs to me that you could create a dummy route process with a route-map that redistributes matches into it.

something like:

router ospf 99

redistribute bgp 6447 subnets route-map tagtest

!

route-map tagtest permit 10

match tag 3549

!

This then should show you all of the tagged routes:

router# sh ip ospf 99 database

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