How to advertise non-connected EIGRP routes

Hi,

Simple set up...2 sites, A & B....they talk via a wireless link which fails over to a backup wireless link when it's down.  I have being doing some network re-designing and I want to know how to advertise the networks beyond each sides router...see diagram

Site A - Router A is the EIGRP router I am working on
Networks I want to advertise to site B - 172.16.0.0 /20   10.10.20.0 /30    192.168.4.0 /24 (DMZ - not in pic)

Site B - Router B is the EIGRP router I am working on
Networks I want to advertise to site A - 192.168.5.0 /24   10.10.40.0 /30    192.168.3.0 /24 (DMZ - not in pic)

When the primary wireless goes down I want to failover to the backup

Any idea how to configure the EIGRP here?

Thanks

Ally
wireless-EIGRP-solution.jpg
ally0000Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Don JohnstonInstructorCommented:
The "no auto-summary" is optional.

Site A multilayer switch:
router eigrp 100
 no auto-summary
 network 10.0.0.0
 network 172.16.0.0

Site A router
 router eigrp 100
  no auto-summary
  network 10.0.0.0

Site B router
 router eigrp 100
  no auto-summary
  network 10.0.0.0

Site B multilayer switch:
router eigrp 100
 no auto-summary
 network 10.0.0.0
 network 192.168.5.0

0
ally0000Author Commented:
Thanks for the reply. Surely the 10.0.0.0 without auto summary would cover my /30 networks at both sites? Do I really need to introduce EIGRP on the other routers? Can I not just somehow advertise these networks on just the routers controlling the wireless?

Thanks
0
Don JohnstonInstructorCommented:
>Thanks for the reply. Surely the 10.0.0.0 without auto summary would cover my /30 networks at both sites?

The no auto-summary was for the 172.16.0.0/20 network. And like I said, it's optional.

>Can I not just somehow advertise these networks on just the routers controlling the wireless?

The multilayer switches need to have the other site's networks in their routing tables. You could create static routes for all of the devices but I thought you wanted to run EIGRP.

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Big Business Goals? Which KPIs Will Help You

The most successful MSPs rely on metrics – known as key performance indicators (KPIs) – for making informed decisions that help their businesses thrive, rather than just survive. This eBook provides an overview of the most important KPIs used by top MSPs.

ally0000Author Commented:
Hi,

I have static routes on all the network devices but I would like router A in site A (the one controlling the wireless link) to advertise 172.16.0.0 /20, 10.10.20.0 /30 and192.168.4.0 /24 but as they are not directly connected then they are not advertised. What about adding a loopback interface for each subnet?
0
Don JohnstonInstructorCommented:
>I have static routes on all the network devices

Then why do you need to advertise anything? If you've got static routes to all the destinations, what else is there?
0
ally0000Author Commented:
I thought it would be better for eigrp to handle all the routing, seeing as it's there.

If you don't think it's a big deal then I'll just leave it

Thanks

Ally
0
Don JohnstonInstructorCommented:
I think you're missing my point (or I'm missing yours).

If you've got static routes defined for all networks on all layer 3 devices, then you don't need EIGRP.

If you're running EIGRP on all layer 3 devices then you don't need static routes.
0
ally0000Author Commented:
OK, I guess I'm just seeing if what I am doing is OK....thanks for replying

Ally
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Routers

From novice to tech pro — start learning today.