eigrp stub connected static config

[mahesh18]

Hi Everyone,

On EIGRP router configured as stub i need to advertise single static route to eigrp nei.

R1 has this config

router eigrp 650

eigrp stub connected summary

network 192.168.0.0

This Router is nei to R2.

Currently R1 has multiple static routes but i want to advertise single route only

is this possible?

Regards

Mahesh

[Reza Sharifi · Accepted solution]

Hi Mahesh,

According to this document, it does not appear to be a way to advertise only a single static route

eigrp stub [ [receive-only] || [connected] [static] [summary] [redistributed] ]

The following options are available:

• Receive-only: router only accepts, but does not explicitly advertise, any routes. This option may not be used in combination with any other options.

• Connected: router advertises directly-connected networks

• Static: router advertises any configured static routes

• Summary: router advertises any configured summarized routes

• Redistributed: router advertises any routes learned from another protocol, such as OSPF

The eigrp stub configuration need only be entered on the spoke routers. The hub routers determine that they are talking to a stub router by examining the TLV in the HELLO packet.

link:

http://www.cisco.com/en/US/technologies/tk648/tk365/technologies_white_paper0900aecd8023df6f.html

HTH

[mahesh18]

Hi Reza,

is this is noit possible can i do this

R1 has no interface with ip 172.31.x.x.

i need to advertise this subnet back to R2

if i make loopback unt on R1 with 172.31.x.x and advertise it with network command will it work?

Regards

Mahesh

[Reza Sharifi]

Hi Mahesh,

That should work since by default EIGRP stub advertises connected and summary routes to its neighbors.  So you should not need the network statement.

Have a look at this doc as well:

A router that is configured as a stub with the eigrp stub command shares connected and summary routing information with all neighbor routers by default.

http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/eigrpstb.html

Thanks,

Reza

[mahesh18]

i tried loopback command but nei router does not learn that route.

i put this ip int lookback 2

ip address 172.31.10.5 255.255.255.0

Regards

Mahesh

[Reza Sharifi]

Can you try advertising it with /32 mask?

ip address 172.31.10.5 255.255.255.255

[mahesh18]

tried no luck

[Reza Sharifi]

Mahesh,

Did you also try it with network statement?

Also, if that does not help, how about using "eigrp stub connected" with no summary?

[mahesh18]

i did not try with network statement.

[mahesh18]

Hi Reza,

Issue was fixed.

Here is info on setup

source --R1----R2---R3---R4---destination

Routing was there for specfic route from R1 to R4.

For return path from destination to source via R4 to R1 --R4 was pointing to R3 .

But R3 does not learn route as R4 was stub and it has no static command configured.

But R2 was learning route to source via R1.

So i add static command on R3 to learn route via R2.

Doing this fixed my issue.

Sorry for not giving you full info.

Regards

Mahesh

[Reza Sharifi]

Mahesh,

Glad to know you figured it out and it is all working.

Thanks for the feedback!

Reza