RE: Route redistribution

So this lab does not make any sense.

Example

router eigrp 100
redistribute ospf 1 metric 10000 1000 1 255 1500 route-map OSPF->EIGRP
!
router ospf 1
redistribute eigrp 100 subnets tag 390
!
route-map OSPF->EIGRP deny 10
match tag 890
!
route-map OSPF->EIGRP permit 20

this would redistribute ospf to eigrp. Routes with tag 890 will not get
put in to EIGRP everything else will. So how do I know if my existing
routes in OSPF have a tag of 890.

Here is the problem:

3.9. Routing Loop Prevention

* Ensure that the RIP routes redistributed on R6 are not passed from
OSPF

and then back into EIGRP on R3 and SW2.

* Use a method that will automatically take into account any new routes

redistributed into EIGRP from RIP on R6.

Marcin Zgola

Internetwork Lead

MCSE, CCNA, CCSP, CCIE #18676

Netrix, LLC

http://www.netrixllc.com <http://www.netrixllc.com>

Ph. 847-964-5300

Fax.: 847-964-5350

From: Chris Breece [mailto:cbreece1_at_gmail.com]
Sent: Sunday, June 07, 2009 8:43 PM
To: Marcin Zgola
Cc: ccielab_at_groupstudy.com
Subject: Re: Route redistribution

The values are totally abstract. You could replace 890 and 390 with 1
and 2, or 100 and 200. As long as you remember what your set'ing and
matching, thats all that matters.

On Sun, Jun 7, 2009 at 8:34 PM, Marcin Zgola <MZgola_at_netrixllc.com>
wrote:

Here is the solution from IE workbook when redistributing between EIGRP
and OSPF.

I am confused with "match tag" I know you can tag the routes and stuff
but what is 890 or 390. Where these values came from? How can I look
these up?

Is this a correct solution ? can some one shine some light on that.

thnks

router eigrp 100
redistribute ospf 1 metric 10000 1000 1 255 1500 route-map OSPF->EIGRP
!
router ospf 1
redistribute eigrp 100 subnets tag 390
!
route-map OSPF->EIGRP deny 10
match tag 890
!
route-map OSPF->EIGRP permit 20

*********************************************************

router eigrp 100
redistribute ospf 1 metric 10000 1000 1 255 1500 route-map OSPF->EIGRP
!
router ospf 1
redistribute eigrp 100 subnets tag 890
!
route-map OSPF->EIGRP deny 10
match tag 390
!
route-map OSPF->EIGRP permit 20

Marcin Zgola
Internetwork Lead
MCSE, CCNA, CCSP, CCIE #18676
Netrix, LLC
http://www.netrixllc.com <http://www.netrixllc.com/>
Ph. 847-964-5300
Fax.: 847-964-5350

Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/>
Received on Sun Jun 07 2009 - 20:47:03 ART