RE: Lab 10 Volume 1

It looks like R2 is in the LSDB on R7, just not the routing table. Also there is no filtering and Area 567 is not a stub.

R7#sh ip o d | i 200.0.0.2
200.0.0.2 200.0.0.5 201 0x80000001 0x005B28

R7#sh ip o d | i 150.100.100.0
150.100.100.0 200.0.0.5 204 0x80000001 0x00EC03

Here are the configs, I hope you can help me here I'm stumped :(

 R2

router ospf 1
 router-id 224.0.0.2
 log-adjacency-changes
 area 24 stub
 network 150.100.12.2 0.0.0.0 area 100
 network 150.100.24.2 0.0.0.0 area 24
 network 150.100.25.2 0.0.0.0 area 25
 network 150.100.100.2 0.0.0.0 area 0
 network 200.0.0.2 0.0.0.0 area 0
 neighbor 150.100.100.5
 neighbor 150.100.100.6

interface Serial0/1/0.256 multipoint
 description Frame Relay Cloud 1
 bandwidth 64
 ip address 150.100.100.2 255.255.255.0
 frame-relay map ip 150.100.100.5 205 broadcast
 frame-relay map ip 150.100.100.6 206 broadcast
 frame-relay map ip 150.100.100.2 206
end

R5

router ospf 1
 log-adjacency-changes
 network 150.100.25.5 0.0.0.0 area 25
 network 150.100.100.5 0.0.0.0 area 0
 network 150.100.220.5 0.0.0.0 area 0.0.2.55
 network 150.100.221.5 0.0.0.0 area 0.0.2.55

interface Serial0/1/0
 bandwidth 64
 ip address 150.100.100.5 255.255.255.0
 encapsulation frame-relay
 frame-relay map ip 150.100.100.2 502 broadcast
 frame-relay map ip 150.100.100.6 502
 no frame-relay inverse-arp
 frame-relay lmi-type cisco
end

R7

router ospf 1
 log-adjacency-changes
 area 78 stub
 network 150.100.78.7 0.0.0.0 area 78
network 150.100.220.7 0.0.0.0 area 567
 network 150.100.221.7 0.0.0.0 area 567
 network 200.0.0.7 0.0.0.0 area 567

interface FasrEthernet0/0
 ip address 150.100.220.7 255.255.255.0

interface FastEthernet0/1
 ip address 150.100.221.7 255.255.255.0

-----Original Message-----
From: Joe Astorino [mailto:jastorino_at_ipexpert.com]
Sent: Wednesday, April 14, 2010 8:03 PM
To: Di Bias, Steve; Bryan Bartik
Cc: CCIE Groupstudy
Subject: 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
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-----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?

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Received on Thu Apr 15 2010 - 00:15:37 ART