I am using the CCNP route lab manual and am attempting the challenge lab. It seems I have everything configured correctly. I am in the final step of the lab. It does not tell you how to do anything just what to do:
1. Configure the interfaces in the diagram with the IP addresses shown.
2. Configure the bandwidth to reflect the actual bandwidth of all serial links.
3. Configure OSPF with interfaces in the areas shown in the diagram.
4. Configure R2 to summarize area 20 with the most specific mask possible.
5. Make the link between R1 and R2 have the OSPF network type of broadcast, with R1 as the DR.
6. Configure R1 to always originate a default route.
7. Modify the link between R2 and R3 to have hello timers and dead timers that are double the default values.
8. Make the link between R2 and R3 have a cost of 500.
9. Configure area 34 to be a totally stubby area.
10. Use MD5 authentication with the keyword “cisco” over the link between R3 and R4.
11. Figure out the hidden issue in the topology that you need to address to have full connectivity.
12. Run a Tcl script on all routers to verify that there is connectivity between the IP addresses in the topology.
Here is my topology:
I am on step 11 where I have to find the hidden issue of the network. I know what the problem is. It had me configure a totally stubby area (34) which will refuse a virtual link so I can connect area 34 back to the backbone. My question is... as a fix should I configure the area 34 as a different type of stub area so that I can configure it with a virtual link so in essence it can receive the OSPF connectivity with the remainder of the topology? Or what would be the best solution?
My configs of each router is attached below.
R1# sh run
Building configuration...
Current configuration : 1178 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
!
no ip domain lookup
ip domain name lab.local
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 172.16.1.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 172.16.12.1 255.255.255.0
ip ospf network broadcast
ip ospf priority 200
clock rate 64000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
clock rate 2000000
!
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 172.16.1.1 0.0.0.0 area 0
network 172.16.12.1 0.0.0.0 area 0
default-information originate always
!
ip route 0.0.0.0 0.0.0.0 Null0
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
================================================================================
R2#sh run
Building configuration...
Current configuration : 1658 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
!
no ip domain lookup
ip domain name lab.local
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 172.16.2.1 255.255.255.224
!
interface Loopback1
ip address 172.16.2.33 255.255.255.224
!
interface Loopback2
ip address 172.16.2.65 255.255.255.224
!
interface Loopback3
ip address 172.16.2.97 255.255.255.224
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 172.16.23.2 255.255.255.0
ip ospf cost 500
ip ospf hello-interval 20
clock rate 64000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
clock rate 2000000
!
interface Serial0/2
ip address 172.16.12.2 255.255.255.0
ip ospf network broadcast
clock rate 2000000
!
interface Serial0/3
no ip address
shutdown
clock rate 2000000
!
router ospf 1
router-id 2.2.2.2
log-adjacency-changes
area 20 range 172.16.2.0 255.255.255.128
network 172.16.2.1 0.0.0.0 area 20
network 172.16.2.33 0.0.0.0 area 20
network 172.16.2.65 0.0.0.0 area 20
network 172.16.2.97 0.0.0.0 area 20
network 172.16.12.2 0.0.0.0 area 0
network 172.16.23.2 0.0.0.0 area 23
!
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
============================================================================================
R3#sh run
Building configuration...
*Mar 1 03:02:54.095: %SYS-5-CONFIG_I: Configured from console by console
Current configuration : 1261 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
!
no ip domain lookup
ip domain name lab.local
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 172.16.3.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 172.16.23.3 255.255.255.0
ip ospf cost 500
ip ospf hello-interval 20
clock rate 2000000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
ip address 172.16.34.3 255.255.255.0
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 cisco
clock rate 64000
!
router ospf 1
router-id 3.3.3.3
log-adjacency-changes
area 34 stub no-summary
network 172.16.3.1 0.0.0.0 area 23
network 172.16.23.3 0.0.0.0 area 23
network 172.16.34.3 0.0.0.0 area 34
!
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
===================================================================================================
R4#sh run
Building configuration...
Current configuration : 1143 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
!
no ip domain lookup
ip domain name lab.local
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 172.16.4.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0
ip address 172.16.34.4 255.255.255.0
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 cisco
clock rate 2000000
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/1
no ip address
shutdown
clock rate 2000000
!
router ospf 1
router-id 4.4.4.4
log-adjacency-changes
network 172.16.4.1 0.0.0.0 area 34
network 172.16.34.4 0.0.0.0 area 34
!
!
!
no ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
exec-timeout 0 0
privilege level 15
logging synchronous
line aux 0
exec-timeout 0 0
privilege level 15
logging synchronous
line vty 0 4
login
!
!
end
