Yup...Manish Salaria
Although his solution was different from mine and looks easier to configure, but if you will get into details about how packet is flowing between R2's loop-back and R6's loop-back then things might get little complicated to understand in first look.
Anyways here I am posting his solution, soon this week I'll post mine too. With his solution though I am not putting any explanation here but mine solution will be having detailed walk through.
I changed interface numbering a little bit as I tested this on different PC running Linux and different Set of IOS. So you may want to adjust interface numbering under initial configuration I gave in first post.
Here is quick GNS topology I used: Click on Image for better view
So here we go:
R1:
R1#sh ip int b | e una|do
Interface IP-Address OK? Method Status Protocol
Serial0/0 123.123.123.1 YES manual up up
FastEthernet1/0 14.14.14.1 YES manual up up
Loopback0 11.11.11.11 YES manual up up
R1#sh run int s0/0
Building configuration...
Current configuration : 337 bytes
!
interface Serial0/0
ip address 123.123.123.1 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
serial restart-delay 0
no arp frame-relay
frame-relay map ip 123.123.123.1 102
frame-relay map ip 123.123.123.2 102 broadcast
frame-relay map ip 123.123.123.3 103 broadcast
no frame-relay inverse-arp
end
R1#sh run | s r o
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 14.14.14.1 0.0.0.0 area 1
network 123.123.123.1 0.0.0.0 area 0
R1#sh ip ro | b ^G
Gateway of last resort is 14.14.14.4 to network 0.0.0.0
33.0.0.0/24 is subnetted, 1 subnets
O 33.33.33.0 [110/65] via 123.123.123.3, 02:39:10, Serial0/0
22.0.0.0/24 is subnetted, 1 subnets
O 22.22.22.0 [110/65] via 123.123.123.2, 02:39:10, Serial0/0
144.144.0.0/32 is subnetted, 1 subnets
O 144.144.144.144 [110/2] via 14.14.14.4, 02:18:00, FastEthernet1/0
11.0.0.0/24 is subnetted, 1 subnets
C 11.11.11.0 is directly connected, Loopback0
123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O 123.123.123.3/32 [110/64] via 123.123.123.3, 02:39:10, Serial0/0
O 123.123.123.2/32 [110/64] via 123.123.123.2, 02:39:10, Serial0/0
C 123.123.123.0/24 is directly connected, Serial0/0
14.0.0.0/24 is subnetted, 1 subnets
C 14.14.14.0 is directly connected, FastEthernet1/0
O*E2 0.0.0.0/0 [110/1] via 14.14.14.4, 02:18:00, FastEthernet1/0
R2:
R2#sh prot | e una|do
Global values:
Internet Protocol routing is enabled
Serial0/0 is up, line protocol is up
Internet address is 123.123.123.2/24
Loopback0 is up, line protocol is up
Internet address is 22.22.22.22/24
R2#sh run int s0/0
Building configuration...
Current configuration : 289 bytes
!
interface Serial0/0
ip address 123.123.123.2 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
serial restart-delay 0
no arp frame-relay
frame-relay map ip 123.123.123.1 201 broadcast
frame-relay map ip 123.123.123.2 201
no frame-relay inverse-arp
end
R2#sh run | s r o
router ospf 1
router-id 2.2.2.2
log-adjacency-changes
network 123.123.123.2 0.0.0.0 area 0
R2#sh ip ro | b ^G
Gateway of last resort is 123.123.123.1 to network 0.0.0.0
33.0.0.0/24 is subnetted, 1 subnets
O 33.33.33.0 [110/129] via 123.123.123.1, 02:43:09, Serial0/0
22.0.0.0/24 is subnetted, 1 subnets
C 22.22.22.0 is directly connected, Loopback0
144.144.0.0/32 is subnetted, 1 subnets
O IA 144.144.144.144 [110/66] via 123.123.123.1, 02:41:42, Serial0/0
11.0.0.0/24 is subnetted, 1 subnets
O 11.11.11.0 [110/65] via 123.123.123.1, 02:43:09, Serial0/0
123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O 123.123.123.3/32 [110/128] via 123.123.123.1, 02:43:09, Serial0/0
O 123.123.123.1/32 [110/64] via 123.123.123.1, 02:43:09, Serial0/0
C 123.123.123.0/24 is directly connected, Serial0/0
14.0.0.0/24 is subnetted, 1 subnets
O IA 14.14.14.0 [110/65] via 123.123.123.1, 02:43:09, Serial0/0
O*E2 0.0.0.0/0 [110/1] via 123.123.123.1, 02:22:04, Serial0/0
R3:
R3#sh prot | e una|do
Global values:
Internet Protocol routing is enabled
Serial0/0 is up, line protocol is up
Internet address is 123.123.123.3/24
Loopback0 is up, line protocol is up
Internet address is 33.33.33.33/24
R3#sh run int s0/0
Building configuration...
Current configuration : 289 bytes
!
interface Serial0/0
ip address 123.123.123.3 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
serial restart-delay 0
no arp frame-relay
frame-relay map ip 123.123.123.1 301 broadcast
frame-relay map ip 123.123.123.3 301
no frame-relay inverse-arp
end
R3#sh run | s r o
router ospf 1
router-id 3.3.3.3
log-adjacency-changes
network 123.123.123.3 0.0.0.0 area 0
R3#sh ip ro | b ^G
Gateway of last resort is 123.123.123.1 to network 0.0.0.0
33.0.0.0/24 is subnetted, 1 subnets
C 33.33.33.0 is directly connected, Loopback0
22.0.0.0/24 is subnetted, 1 subnets
O 22.22.22.0 [110/129] via 123.123.123.1, 02:46:13, Serial0/0
144.144.0.0/32 is subnetted, 1 subnets
O IA 144.144.144.144 [110/66] via 123.123.123.1, 02:44:36, Serial0/0
11.0.0.0/24 is subnetted, 1 subnets
O 11.11.11.0 [110/65] via 123.123.123.1, 02:46:13, Serial0/0
123.0.0.0/8 is variably subnetted, 3 subnets, 2 masks
O 123.123.123.2/32 [110/128] via 123.123.123.1, 02:46:13, Serial0/0
O 123.123.123.1/32 [110/64] via 123.123.123.1, 02:46:13, Serial0/0
C 123.123.123.0/24 is directly connected, Serial0/0
14.0.0.0/24 is subnetted, 1 subnets
O IA 14.14.14.0 [110/65] via 123.123.123.1, 02:46:13, Serial0/0
O*E2 0.0.0.0/0 [110/1] via 123.123.123.1, 02:24:58, Serial0/0
R4:
R4#sh prot | e una|do
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
Internet address is 14.14.14.4/24
FastEthernet1/0 is up, line protocol is up
Internet address is 45.45.45.4/24
Loopback0 is up, line protocol is up
Internet address is 44.44.44.44/24
Loopback1 is up, line protocol is up
Internet address is 144.144.144.144/24
R4#sh run | s r r
router rip
version 2
network 44.0.0.0
network 45.0.0.0
no auto-summary
R4#sh run | s r o
router ospf 1
router-id 4.4.4.4
log-adjacency-changes
network 14.14.14.4 0.0.0.0 area 1
default-information originate always
R4#sh ip ro | b ^G
Gateway of last resort is 45.45.45.5 to network 0.0.0.0
155.155.0.0/24 is subnetted, 1 subnets
R 155.155.155.0 [120/1] via 45.45.45.5, 00:00:24, FastEthernet1/0
33.0.0.0/24 is subnetted, 1 subnets
O IA 33.33.33.0 [110/66] via 14.14.14.1, 02:28:36, FastEthernet0/0
22.0.0.0/24 is subnetted, 1 subnets
O IA 22.22.22.0 [110/66] via 14.14.14.1, 02:28:36, FastEthernet0/0
144.144.0.0/24 is subnetted, 1 subnets
C 144.144.144.0 is directly connected, Loopback1
11.0.0.0/24 is subnetted, 1 subnets
O IA 11.11.11.0 [110/2] via 14.14.14.1, 02:28:36, FastEthernet0/0
123.0.0.0/32 is subnetted, 3 subnets
O IA 123.123.123.3 [110/65] via 14.14.14.1, 02:28:36, FastEthernet0/0
O IA 123.123.123.2 [110/65] via 14.14.14.1, 02:28:36, FastEthernet0/0
O IA 123.123.123.1 [110/1] via 14.14.14.1, 02:28:36, FastEthernet0/0
44.0.0.0/24 is subnetted, 1 subnets
C 44.44.44.0 is directly connected, Loopback0
14.0.0.0/24 is subnetted, 1 subnets
C 14.14.14.0 is directly connected, FastEthernet0/0
45.0.0.0/24 is subnetted, 1 subnets
C 45.45.45.0 is directly connected, FastEthernet1/0
R* 0.0.0.0/0 [120/1] via 45.45.45.5, 00:00:24, FastEthernet1/0
R5:
R5#sh prot | e una|do
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
Internet address is 45.45.45.5/24
FastEthernet1/0 is up, line protocol is up
Internet address is 56.56.56.5/24
Loopback0 is up, line protocol is up
Internet address is 55.55.55.55/24
Loopback1 is up, line protocol is up
Internet address is 155.155.155.155/24
R5#sh run | i ip route
ip route 0.0.0.0 0.0.0.0 45.45.45.4
R5#sh run | s r r
router rip
version 2
network 45.0.0.0
network 155.155.0.0
default-information originate
no auto-summary
R5#sh run | s r o
router ospf 1
router-id 5.5.5.5
log-adjacency-changes
network 56.56.56.5 0.0.0.0 area 2
default-information originate
R5#sh ip ro | b ^G
Gateway of last resort is 45.45.45.4 to network 0.0.0.0
155.155.0.0/24 is subnetted, 1 subnets
C 155.155.155.0 is directly connected, Loopback1
55.0.0.0/24 is subnetted, 1 subnets
C 55.55.55.0 is directly connected, Loopback0
66.0.0.0/24 is subnetted, 1 subnets
O 66.66.66.0 [110/2] via 56.56.56.6, 00:01:00, FastEthernet1/0
56.0.0.0/24 is subnetted, 1 subnets
C 56.56.56.0 is directly connected, FastEthernet1/0
44.0.0.0/24 is subnetted, 1 subnets
R 44.44.44.0 [120/1] via 45.45.45.4, 00:00:07, FastEthernet0/0
45.0.0.0/24 is subnetted, 1 subnets
C 45.45.45.0 is directly connected, FastEthernet0/0
S* 0.0.0.0/0 [1/0] via 45.45.45.4
R6:
R6#sh prot | e una|do
Global values:
Internet Protocol routing is enabled
FastEthernet0/0 is up, line protocol is up
Internet address is 56.56.56.6/24
Loopback0 is up, line protocol is up
Internet address is 66.66.66.66/24
R6#sh run | s r o
router ospf 1
router-id 6.6.6.6
log-adjacency-changes
network 56.56.56.6 0.0.0.0 area 2
R6#sh ip ro | b ^G
Gateway of last resort is 56.56.56.5 to network 0.0.0.0
55.0.0.0/24 is subnetted, 1 subnets
O 55.55.55.0 [110/2] via 56.56.56.5, 02:12:56, FastEthernet0/0
66.0.0.0/24 is subnetted, 1 subnets
C 66.66.66.0 is directly connected, Loopback0
56.0.0.0/24 is subnetted, 1 subnets
C 56.56.56.0 is directly connected, FastEthernet0/0
O*E2 0.0.0.0/0 [110/1] via 56.56.56.5, 02:03:20, FastEthernet0/0
Final Reachability Check using TCL:
tclsh
foreach address {
123.123.123.1
14.14.14.1
11.11.11.11
123.123.123.2
22.22.22.22
123.123.123.3
33.33.33.33
14.14.14.4
45.45.45.4
44.44.44.44
144.144.144.144
45.45.45.5
56.56.56.5
55.55.55.55
155.155.155.155
56.56.56.6
66.66.66.66
} {ping $address}
HTH...
Deepak Arora 
2 comments:
Hi Deepak !!
How are you doing!!
I just started to watch your blogs and seen the OSPF challenge and was labbing that scenario. Solution1 given by you do not seems to be correct as only static route was allowed but the route added on R5 is a default route. I have also seen the solution 2 & 3 which can be done in more easy way. i have commented on those solutions as well !!
Technically a static default route is also considered as Static Route. Also believe it or not but PBR is technically also a form of static route only.
HTH...
Deepak Arora
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