Hi Khaled,
What you are supposed to be doing is having R1 and R2 use addresses in
the 100.150.36.0 /24 network, while R2 and R7 use addresses in the
150.100.68.0/24 network. This is acheived by having a secondary address
on the interface on R2. You should be able to run OSPF on a secondary
address OK I think, although I have not tried it yet.
(EIGRP will not run on a secondary address but that is not involved here.)
regards
John
khaled al-ajeman wrote:
Hi there,
guys when I configured the relationship between R2 AND R7 by using the
network 150.100.36.0/24 as primary network for both routers interface the
relationship has established,
but when I configured the R2 f0/0 as 150.100.68.0/24 as primary network
according to the book, the relationship between R2 AND R7 went down.
but when I configured both
interfaces at R2 AND R7 under same primary network 150.100.36.0/24 both
routers worked fine. So, what I should do I have to leave both f0/0
interface under the same network 150.100.36.0/24 in order to ensure my
relationship? Please, check my configuration is there any thing not normal?
R2
interface FastEthernet0/1
ip address 150.100.68.2 255.255.255.0 secondary
ip address 150.100.36.2 255.255.255.0
duplex auto
speed auto
R2(config-if)#do sr | s os
hostname R2
router ospf 1
router-id 10.10.2.2
log-adjacency-changes
passive-interface default
no passive-interface FastEthernet0/1
network 10.10.2.2 0.0.0.0 area 72
network 150.100.36.0 0.0.0.255 area 72
R2(config-if)#do sh ip os nei
Neighbor ID Pri State Dead Time Address Interface
10.10.7.7 1 FULL/DR 00:00:38 150.100.36.7
FastEthernet0/1 -------> relationship has established between R2 AND R7
R7
interface FastEthernet0/1
ip address 150.100.68.7 255.255.255.0 secondary
ip address 150.100.36.7 255.255.255.0
duplex auto
speed auto
R7#sr | s os
hostname R7
router ospf 1
router-id 10.10.7.7
log-adjacency-changes
passive-interface default
no passive-interface FastEthernet0/1
network 10.10.7.7 0.0.0.0 area 72
network 150.100.36.0 0.0.0.255 area 72
R7#sh ip os n
Neighbor ID Pri State Dead Time Address Interface
10.10.2.2 1 FULL/BDR 00:00:39 150.100.36.2
FastEthernet0/1
R7#
note: According to the WB we have to configure R2 f0/0
interface as primary network of 150.100.68.0/24 and to keep the R7 f0/0
interface as 150.100.36.0/24 primary network, however
adj relationship will not established in this case unless we
have both interface f0/0 at vlan 721 for both routers R2 AND R7 are sharing
the same primary interface network?
best regards,
khaled
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_______________________________________________
For more information regarding industry leading CCIE Lab training, please visit
www.ipexpert.com
Are you a CCNP or CCIE and looking for a job? Check out
www.PlatinumPlacement.com
http://onlinestudylist.com/mailman/listinfo/ccie_rs
