Re: Lab 10 Volume 1

Is R2 in the LSDB of R7? Any filtering in place? Is 567 a stub of any sort?

Post R2, R5, R7 interface and OSPF configurations.

Sent from my Verizon Wireless BlackBerry

Regards,

 Joe Astorino - CCIE #24347
Sr. Technical Instructor - IPexpert
Mailto: jastorino_at_ipexpert.com
Telephone: +1.810.326.1444
Live Assistance, Please visit: www.ipexpert.com/chat
eFax: +1.810.454.0130

IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com

-----Original Message-----
From: "Di Bias, Steve" <steve.dibias_at_uhsinc.com>
Date: Wed, 14 Apr 2010 22:52:32
To: Bryan Bartik<bbartik_at_ipexpert.com>
Cc: ccielab_at_groupstudy.com<ccielab_at_groupstudy.com>
Subject: Re: Lab 10 Volume 1

Yes r5 can ping both the r2 and the r7 loopbacks

Sent from my iPhone

On Apr 14, 2010, at 7:13 PM, "Bryan Bartik" <bbartik_at_ipexpert.com<mailto:bbartik_at_ipexpert.com>> wrote:

Does R5 know how to get to R2?

On Wed, Apr 14, 2010 at 5:03 PM, Di Bias, Steve <<mailto:steve.dibias_at_uhsinc.com>steve.dibias_at_uhsinc.com<mailto:steve.dibias_at_uhsinc.com>> wrote:
*sorry email sent prematurely*

Hey everyone,

I'm having some strange issues with reachability with OSPF on Lab 10 that I
can't figure out. Here is an example of something I'm seeing

R2--s0/1/0.256---Frame Cloud---s0/1/0--R5-fa0/0--Ethernet-fa0/0--R7

R2 has its s0/1/0.256 in Area 0
R5 has its s0/1/0 in Area 0
R5 has its fa0/0 in Area 567
R7 has its fa0/0 in Area 567

R5 is an ABR with interfaces in both areas and R7 has an interface in 567. So
far no rules have been broken (area 567 touches area 0 on R5) and inter-area
communication should be working between the three routers, but it doesn't. As
a test on R7 I just added the loopback interface to the OSPF process in area
567

R7(config)#router os 1
R7(config-router)#net 200.0.0.7 0.0.0.0 area 567

On R5 I verified the route and I can ping the loopback on R7

R5#sh ip ro 200.0.0.7
Routing entry for 200.0.0.7/32<http://200.0.0.7/32>
 Known via "ospf 1", distance 110, metric 11, type intra area
 Last update from 150.100.220.7 on FastEthernet0/0, 00:03:51 ago
 Routing Descriptor Blocks:
 * 150.100.220.7, from 200.0.0.7, 00:03:51 ago, via FastEthernet0/0
     Route metric is 11, traffic share count is 1

R5#ping 200.0.0.7
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.0.0.7, timeout is 2 seconds:
!!!!!

So we are good from R5 to R7 but not to R2 who has the route but can't ping

R2#sh ip route 200.0.0.7
Routing entry for 200.0.0.7/32<http://200.0.0.7/32>
 Known via "ospf 1", distance 110, metric 1573, type inter area
 Last update from 150.100.100.5 on Serial0/1/0.256, 00:00:14 ago
 Routing Descriptor Blocks:
 * 150.100.100.5, from 200.0.0.5, 00:00:14 ago, via Serial0/1/0.256
     Route metric is 1573, traffic share count is 1

R2#ping 200.0.0.7
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.0.0.7, timeout is 2 seconds:
.....
If I run a debug on R2 and then run a ping to 200.0.0.7 it shows routed vis
FIB like this

R2(config)#access-list 101 permit icmp any any
R2(config)#do deb ip pack 101 de
R2(config)#do ping 200.0.0.7
Sending 5, 100-byte ICMP Echos to 200.0.0.7, timeout is 2 seconds:

*May 13 00:29:37.057: IP: tableid=0, s=150.100.100.2 (local), d=200.0.0.7
(Serial0/0.256), routed via FIB

So it R2 knows how to get to R7 the issue must be that R7 doesn't know how to
get to back to R2

R7#sh ip ro 200.0.0.2
% Subnet not in table

It seems like Area 0 routes aren't coming over to Area 567, any ideas?

UHS Confidentiality Notice: This e-mail message, including any attachments,
is for the sole use of the intended recipient (s) and may contain confidential
and privileged information. Any unauthorized review, use, disclosure or
distribution of this information is prohibited. If this was sent to you in
error, please notify the sender by reply e-mail and destroy all copies of the
original message.

Blogs and organic groups at <http://www.ccie.net> http://www.ccie.net
Received on Thu Apr 15 2010 - 03:02:58 ART