final article in our series on floating static routes. I'll bring the diagram up here for just a moment, And you can see where we are at this point in the lab. We'Ve configured a static route over the 210 1 1 0 / 24 Network, Because we've been told by the client that t want to use this network as a backup link for this router router 1 to reach the Ethernet segment. If the frame relay network goes down now we're running rip version 2 over the frame relay circuit, That network number is 172, 12, 123 0 and the Ethernet segment. 172. 12.
23. 0. As mentioned we're not running it over this particular link. So we configured a static route on router 1 using 210 1. 1. 3.
This interface is the next hop, But the problem was when we put that in our routing table the static route became the primary route and not any kind of backup link because of the administrative distance. The RIP route and the static route were both 172 12. 23. 0 / 27. Then the administrative distance becomes the tiebreaker, The lower the administrative distance, The more believable the source of the routes, And it doesn't get much lower than 1.
But we do need to know that Rip's ad is 120. So now we're going to remove that static route and put on what we call a floating static round and see exactly how it's floating out there. So, Let's do a comp T here and we can go through the last few commands.
We'Ve run with the up arrow and then I used ctrl a to move to the beginning of the line to just type in the word. No, So we have successfully removed that, And now, Let's see if the RIP routes are back in the table, That fast, That is pushing it with R up. So, Let's clear the routing table with clear IP route asterisk and now you can see the 2 / up. Routes are back in the table as a result of removing static route.
So now we're going to put in a floating static route, Which is simply a static route with an ad higher than that of the dynamic routing protocol in use - and in this case of course, That's rough - we know that's an ad of 120 and I'm gonna use My up arrow because the command is just about the same as it is for a regular static route. You'Re still going to put your destination Network, Your mask your next hop IP address, Or your local router eggs and interface, But it's an option at the very end of the IP route command, Illustrated here by iOS, Help that lets us know how we can create a Floating static route and that's with this distance metric, That's referring to the ad of the route, So as long as it's higher than 120. In this particular case, We're gonna be fine, So we'll just go ahead and put 122 for that. So a lot of numbers going straight across with no words in the middle here.
So again, That's dist destination Network. Our network mask our next hop IP address and then finally, The ad for this static route. This this would not change the ad of any other static routes that happened to be in the table. That's only going to affect this particular route. So let's take a look at that routing table and you can see that the rip routes are still there in the previous article when we put the static route and didn't change the ad those two RIP routes were removed immediately or those two different rip routes for The same destination we're taken out of the table immediately and here t were not so what you could expect us, How you can expect this to look in your config is just like this.
It will appear in the configuration, But it's not going to appear in your routing table unless the routes with the lower ad go away. And since this is a lab environment, We can do that and we're going to close the serial zero interface on router, One which will cut off its rip routes and then we'll see. If that floating static route then appears in the table.
So we'll wait for the usual expected messages to come in and there t are administrative lead. A landline protocol has changed down and we'll do a quick show IP route, And you can see that the floating static route has successfully been placed into the routing table. Note that there is no special code for a floating static route, It's just the usual else, And that indicates a static route and it's not going to have an asterisk next to it, Because that is a floating static.
Excuse me: a default static route. If you saw an S and an asterisk, But you should not expect to see the asterisk, As this is not any kind of default route, You can also see the administrative distance is indeed 122. So that's why it's floating it's kind of just floating out there until it's needed and it was needed because those rip routes left the table and let's go ahead, Open that interface back up and see what happens. Let's make a serial zero and see what happens. There's the line protocol coming up after we open up the physical interface and let's check that routing table and we'll do a quick, Clear, IP route, Astra's to force a rip update and should see on any second.
I bet that we see them on the next refresh. Don'T see it, Let's see how that goes. Can you, Sir rips running, We just haven't seen it yet, Let's force up one more time and there we go so every once in a while, Especially with rip. It just takes a few extra seconds and we do get impatient in this business sometimes.
But you can see that the RIP routes have been put back into the routing table, Because the update came in for the exact same network and network masts that we have the floating static route in the table for and due to its lower administrative distance. These two routes were put back into the routing table and, Of course, We have two routes to that destination because t have the exact same metric and that's all it rip performs equal cost only balancing by default. So that concludes our three-part.
Look at floating static routes hope you enjoyed this series for over 300, More Cisco and Microsoft tutorials. Please visit our main web site, Wwwcamstudioorg plus certification com, And I'm also excited to announce that our famous CCNA mastermind webinar series is going on demand. So literally, Thousands of people around the world have wanted to attend this live course, And t haven't been able to because of time zone issues, And now everyone will be able to attend when you're ready, Because the webinar will be on demand.
It's going to be on your schedule whenever you're ready - and I ask you to visit the website, The brain, To vanish, Calm and visit the blog and sign up for the daily newsletter, Which brings you daily exam questions. Practice exam questions to your inbox and you'll also be the first to know about all the details about the on-demand webinar. Thanks again for reading today's article, I'm Kris Bryant CCIE number one to nine thirty.
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