ospf database command. Redistributed routes will be external routes. The last column will be the tags for these routes: R2# sho ip ospf dat OSPF Router with ID (10.10.10.2) (Process ID 100) Router Link States (Area 0) Chapter 11: Redistribution Link ID ADV Router Checksum Link count 10.10.10.2 10.10.10.2 0x80000002 0x00F5BA 20.20.20.1 20.20.20.1 0x80000002 0x009DD9 1 Net Link States (Area 0) Link ID ADV Router Checksum 10.10.10.1 20.20.20.1 0x80000001 0x00B5CA Type-5 AS External Link States Link ID ADV Router Checksum Tag 20.20.20.0 10.10.10.2 0x80000001 0x00D774 2 20.20.20.0 20.20.20.1 0x80000001 0x002DF9 0 50.50.50.0 10.10.10.2 0x80000001 0x009B56 2 To set a route tag in EIGRP, you need to use route maps. Luckily for those who have a route-map phobia, the way I'll show you to use them is one of the sim- plest ways they can be deployed. Route maps are cool! There, I said it. Route maps are quite powerful, and if you have a fear of them, I suggest you spend some time playing around with them. The difficulty usually lies in confusion between route maps and access lists and how they interact. It will be well worth your time to learn more about route maps. They can get you out of a technical corner (such as a redistribution loop) when no other option exists. See Chapter 14 for more information. To apply a tag to a redistributed route in EIGRP, you must first create a route map, then call it in a redistribute command line. Route maps in their simplest form consist of a line including the route map name, a permit or deny statement, and a number, followed by descriptions of one or more actions to carry out. Here's a simple route map: route-map TAG-EIGRP permit 10 set tag 3 The first line lists the name of the route map, the keyword permit, and the number 10 (this is the default; the numbers are used to order multiple entries in a route map, and as there's only one entry here, it doesn't really matter what the number is). keyword permit says to perform the actions specified below the opening line. The next line shows th