- External protocol is Static, external metric is 0. Administrator tag is 0 (0x00000000) This is all normal, static routes redistributed to into EIGRP are external routes. R3#sh ip route b Gateway. Gateway of last resort is not set. 10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks.
- You can inject static routes into EIGRP two ways: The 'network' command 'redistribute static'.
Redistribute EIGRP static routes using a prefix-list and a route-map. In some instances you may have a core switch with a link to a WAN router exchanging routes using a dynamic routing protocol such as EIGRP, static routes to other routers and a default route to the internet firewall. You may not have the ability to run a routing protocol on the other routers so you may find yourself with a load of static IP addresses on the core switch. Now let's deal with redistribution. To do redistribution from another routing protocol into EIGRP you have to use redistribute command as a router eigrp subcommand. Further there are several options: protocol from which to take routes, it could be Connected, Static, OSPF, EIGRP, ISIS, BGP, RIP. Redistribution into EIGRP with Route Maps. Redistribution into EIGRP by using Route Maps is done similarly as with OSPF. In an earlier entry there is a lab for configuring redistribution into EIGRP without using Route Maps, here we'll use the same topology in GNS3. Our purpose is to redistribute routes learned from OSPF to EIGRP.
I have a network with the following configuration that is used to redistribute static routes into an EIGRP network.
We have a requirement to do some route slugging on a router in the high availability path. Tennis elbow 2013 mac cracked. We need to lower the metric of the static route 40.0.0.0/24 this are being redistributed so that this becomes the preferred router for that route.
Question: What is the difference between the following two solutions:
Solution 1
Solution 2
Hint
Would you like to a hint ? [slider title='Click Here']Solution 1 is much better in a real network[/slider]
Eigrp Redistribute Metric
I will post the answer in a week or so. Answers in the comments and I will say why its the best solution.
Solution 2 will require you to issue the following:
and then
to make these changes. Of course this removes all the routes from the routing table and will cause an outage. Whereas Solution 1 will not cause a routing tables to change and thus not cause an impact to services.
Eigrp Configuration
For anyone who is learning Cisco networking, this might help to understand why detailed knowledge, 'more than one way' and memorisation is important. By knowing it backwards, you spend your time thinking about other things rather than thinking only about the redistribution. Typically, people with limited skills will be happy with ANY solution, and not attempt to think of other ways of doing something that might be a better choice.
Router Eigrp Redistribute Static
For mendicants in CCIE study: this iss why you need to know four different ways to do same thing. You learn to keep thinking about options, and the best choice. It's been a valuable lesson for me.
Cisco Redistribute Static Route Into Eigrp
Postscript
In this particular case (as Ivan Pepelnjak points out in the comments) the router had a couple of hundred static routes. When you delete and add that many routes you create a CPU and bandwidth hit as the routes are deleted and propagated. †In networks with slow bandwidth, this can cause service impacts as the routing updates can suck up bandwidth.
I have a network with the following configuration that is used to redistribute static routes into an EIGRP network.
We have a requirement to do some route slugging on a router in the high availability path. Tennis elbow 2013 mac cracked. We need to lower the metric of the static route 40.0.0.0/24 this are being redistributed so that this becomes the preferred router for that route.
Question: What is the difference between the following two solutions:
Solution 1
Solution 2
Hint
Would you like to a hint ? [slider title='Click Here']Solution 1 is much better in a real network[/slider]
Eigrp Redistribute Metric
I will post the answer in a week or so. Answers in the comments and I will say why its the best solution.
Solution 2 will require you to issue the following:
and then
to make these changes. Of course this removes all the routes from the routing table and will cause an outage. Whereas Solution 1 will not cause a routing tables to change and thus not cause an impact to services.
Eigrp Configuration
For anyone who is learning Cisco networking, this might help to understand why detailed knowledge, 'more than one way' and memorisation is important. By knowing it backwards, you spend your time thinking about other things rather than thinking only about the redistribution. Typically, people with limited skills will be happy with ANY solution, and not attempt to think of other ways of doing something that might be a better choice.
Router Eigrp Redistribute Static
For mendicants in CCIE study: this iss why you need to know four different ways to do same thing. You learn to keep thinking about options, and the best choice. It's been a valuable lesson for me.
Cisco Redistribute Static Route Into Eigrp
Postscript
In this particular case (as Ivan Pepelnjak points out in the comments) the router had a couple of hundred static routes. When you delete and add that many routes you create a CPU and bandwidth hit as the routes are deleted and propagated. †In networks with slow bandwidth, this can cause service impacts as the routing updates can suck up bandwidth.
Cisco Eigrp Redistribute Static Metric
It's a big knock on effect. You need to think of these things in real life to keep the network up all the time.
