Tag Routes from specific interfaces?http://knowledgebase/index.php?/article/AA-01867/54/Cisco-Networking/Client-Wireless-SSID-Password.html
Scenario is a hub router in an MPLS environment with DMVPN backup. MPLS runs over BGP and DMVPN uses EIGRP. All spokes are EIGRP stubs, hub has mutual redistribution to allow route exchange with 3rd parties who also run EIGRP.
I would like to prevent the hub from redistributing to BGP, any routes that come from the Tunnel interface. I can obviously develop and maintain a route map based on an ACL or prefix list, however I was wondering if I could somehow tag the routes that are learned over the tunnel? This makes things much easier to maintain in the long run, but my research so far has turned up empty.
route-map Test permit 10 match interface Tunnel1 set tag 40
Once you redistribute into whichever protocol you want, you'll append this route-map to the redistribution line:
router ospf 1
redistribute eigrp 100 route-map Test subnets
R3#sh ip route 184.108.40.206 Routing entry for 220.127.116.11/24 Known via "ospf 1", distance 110, metric 20 Tag 40, type extern 2, forward metric 10 Last update from 18.104.22.168 on FastEthernet0/0, 00:00:09 ago Routing Descriptor Blocks: * 22.214.171.124, from 192.168.12.1, 00:00:09 ago, via FastEthernet0/0 Route metric is 20, traffic share count is 1 Route tag 40
The protocol used over the tunnel is eigrp only...
Thanks for the reply, sorry for taking so long to get back to you. I see how the tag is applying and showing up, but I want to apply the tag and then based on that tag NOT redistribute it. Essentially saying redistribute eigrp into bgp except with tag x, where tag x has been applied to all routes inbound over Tunnel 1.
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