Comments on: Understanding Redistribution (Part II) http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/ Helping you become a Cisco Certified Internetwork Expert Sun, 14 Mar 2010 17:16:45 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: Abdo http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-62926 Abdo Sun, 30 Aug 2009 19:28:17 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-62926 Hi Peter , I just want to know ,R3 is not runing RIP and in part I you have this (if we configure bi-directional redistribution on R3 between RIPv2 and OSPF ) is this right ??? Hi Peter ,

I just want to know ,R3 is not runing RIP and in part I you have this (if we configure bi-directional redistribution on R3 between RIPv2 and OSPF ) is this right ???

]]> By: khalid malik http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-50569 khalid malik Wed, 03 Jun 2009 10:31:31 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-50569 hi Thank It is really good ways to understand. Q1) In which router interface you defined 222.22.2.0/24 these ? If it loopback then it should start with 150.X.X.X ? I am confuse Please help me ? hi
Thank It is really good ways to understand.
Q1) In which router interface you defined
222.22.2.0/24 these ?
If it loopback then it should start with 150.X.X.X ? I am confuse Please help me ?

]]> By: ruhann http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-35944 ruhann Mon, 23 Mar 2009 08:41:43 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-35944 Omarept you are right. The reason though is simple. A redistributed route cant be redistributed again on the same router. Here it being R3 (EIGRP123> OSPF >x> EIGRP356). Easy fix as Petr did, Redistribute between EIGRP123 EIGRP356 directly :) Omarept you are right.
The reason though is simple.
A redistributed route cant be redistributed again on the same router. Here it being R3 (EIGRP123> OSPF >x> EIGRP356).

Easy fix as Petr did, Redistribute between EIGRP123 EIGRP356 directly :)

]]> By: Alex http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-32951 Alex Fri, 13 Mar 2009 15:56:07 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-32951 Excellent article - thanks! Question: what do you guys use or recommend for a lab simulations? I heard of gns3 but I was wondering if there is something better out there... Thank you in advance. CheerS! Excellent article – thanks! Question: what do you guys use or recommend for a lab simulations? I heard of gns3 but I was wondering if there is something better out there…

Thank you in advance.

CheerS!

]]> By: Omarept http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-17793 Omarept Sun, 04 Jan 2009 06:18:24 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-17793 Good post, I replicated the scenario, and I noticed that before of change the R1 loopback from advertise to redistribute you wrote down: This seems to be an easy one. We’re done, full connectivity attained, and no loops were introduced. Thanks to EIGRP External AD there is no need to manually filter routes on the border routes between EIGRP 123 and OSPF. however full connectivity is not reached because R6 cannot get R1 loopback. in your R6 routing table R1 loopback is not present: it was copied directly from your post (I got the same result): Rack18R6#show ip route eigrp D EX 222.22.2.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0 D EX 220.20.3.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0 174.18.0.0/24 is subnetted, 2 subnets D EX 174.18.234.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0 D EX 192.10.18.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0 150.18.0.0/24 is subnetted, 5 subnets D EX 150.18.4.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0 D 150.18.5.0 [90/156160] via 174.18.0.5, 00:41:30, FastEthernet0/0 D EX 150.18.2.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0 D EX 150.18.3.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0 D EX 205.90.31.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0 Rgds. Good post, I replicated the scenario, and I noticed that before of change the R1 loopback from advertise to redistribute you wrote down:

This seems to be an easy one. We’re done, full connectivity attained, and no loops were introduced. Thanks to EIGRP External AD there is no need to manually filter routes on the border routes between EIGRP 123 and OSPF.

however full connectivity is not reached because R6 cannot get R1 loopback.
in your R6 routing table R1 loopback is not present:

it was copied directly from your post (I got the same result):

Rack18R6#show ip route eigrp
D EX 222.22.2.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0
D EX 220.20.3.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0
174.18.0.0/24 is subnetted, 2 subnets
D EX 174.18.234.0
[170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0
D EX 192.10.18.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0
150.18.0.0/24 is subnetted, 5 subnets
D EX 150.18.4.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0
D 150.18.5.0 [90/156160] via 174.18.0.5, 00:41:30, FastEthernet0/0
D EX 150.18.2.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0
D EX 150.18.3.0 [170/2560002816] via 174.18.0.3, 00:10:31, FastEthernet0/0
D EX 205.90.31.0/24 [170/2560002816] via 174.18.0.3, 00:07:29, FastEthernet0/0

Rgds.

]]> By: chukabume http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-6920 chukabume Fri, 29 Aug 2008 15:30:04 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-6920 Just wanted to clarify if the distance ospf external command is in 12.4 release , which will be in the routers for the lab ? Just wanted to clarify if the distance ospf external command is in 12.4 release , which will be in the routers for the lab ?

]]> By: Oluwaseyi http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-5731 Oluwaseyi Sun, 10 Aug 2008 16:23:38 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-5731 This is awesome, even CiscoPress cannot explain it better than this. This is awesome, even CiscoPress cannot explain it better than this.

]]> By: IE Blog: understanding redistribution « Just another CCIE http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-2749 IE Blog: understanding redistribution « Just another CCIE Sun, 18 May 2008 21:23:03 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-2749 [...] I Part II Part [...] [...] I Part II Part [...]

]]> By: Week 7 summary « Richard Bannister’s CCIE Blog http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-480 Week 7 summary « Richard Bannister’s CCIE Blog Mon, 25 Feb 2008 13:57:31 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-480 [...] is a link to a great read regarding redistribution I had a look at this week: Understanding Redistribution (Part 2) by Petr Lapukhov, CCIE #16379 @ Internetwork [...] [...] is a link to a great read regarding redistribution I had a look at this week: Understanding Redistribution (Part 2) by Petr Lapukhov, CCIE #16379 @ Internetwork [...]

]]> By: Returning Some Link Love « CCIE Pursuit http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/comment-page-1/#comment-455 Returning Some Link Love « CCIE Pursuit Sun, 24 Feb 2008 00:04:58 +0000 http://blog.ine.com/2008/02/19/understanding-redistribution-part-ii/#comment-455 [...] Part II [...] [...] Part II [...]

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