Need Help in Static OSPF Redistribute

[xBan]

Hi ,

Im very newbie in networking. i have question about OSPF routing with Static. i have this configuration below, why i cant ping R5 and R1 network from R4, even though i can see their network in my ip route, i can ping it also from R3. is there a problem in the configuration or need to add? hope someone can enlighten me, i tried everything. but seems R4 cannot see R5 and R1 even it is already in his IP route. Thanks

And also one more question, is there a limit on router redistributing routes in ospf if i used static?

R5>>R1>>R2>>R3>>R4
R5 & R1 Static Config
R2 ASBR
R3 and R4 Ospf


R1#

interface FastEthernet0/0
ip address 20.20.20.1 255.255.255.0
duplex half
!
interface FastEthernet1/0
ip address 192.168.1.1 255.255.255.0
duplex half

!
ip route 0.0.0.0 0.0.0.0 192.168.1.5
ip route 10.10.10.0 255.255.255.0 20.20.20.2
!

_________________________________________________

R2#
!
interface FastEthernet0/0
ip address 20.20.20.2 255.255.255.0
duplex half
!
interface FastEthernet1/0
IP address 10.10.10.2 255.255.255.0
duplex half
!
router OSPF 1
router-id 2.2.2.2
redistribute connected subnets
redistribute static subnets
network 10.10.10.0 0.0.0.255 area 1
!

ip route 192.168.1.0 255.255.255.0 20.20.20.1
!

__________________________________________
R3#

interface FastEthernet0/0
ip address 10.10.10.3 255.255.255.0
duplex half
!
interface FastEthernet1/0
ip address 30.30.30.3 255.255.255.0
duplex half
!
!
router OSPF 1
router-id 3.3.3.3
network 10.10.10.0 0.0.0.255 area 1
network 30.30.30.0 0.0.0.255 area 0
!

R4#

______________________________________________

!
interface FastEthernet0/0
ip address 30.30.30.4 255.255.255.0
duplex half
!
!
router ospf 1
router-id 4.4.4.4
network 30.30.30.0 0.0.0.255 area 0
!


R5#

!
interface FastEthernet0/0
ip address 192.168.1.5 255.255.255.0
duplex half
!
!
ip route 0.0.0.0 0.0.0.0 192.168.1.1
!


___________________________________________________

R4 IP route

10.0.0.0/24 is sub netted, 1 subnets
O IA 10.10.10.0 [110/2] via 30.30.30.3, 00:04:27, FastEthernet0/0
20.0.0.0/24 is sub netted, 1 subnets
O E2 20.20.20.0 [110/20] via 30.30.30.3, 00:01:54, FastEthernet0/0
30.0.0.0/8 is variably sub netted, 2 subnets, 2 masks
C 30.30.30.0/24 is directly connected, FastEthernet0/0
L 30.30.30.4/32 is directly connected, FastEthernet0/0
O E2 192.168.1.0/24 [110/20] via 30.30.30.3, 00:01:54, FastEthernet0/0




R3 IP route

10.0.0.0/8 is variably sub netted, 2 subnets, 2 masks
C 10.10.10.0/24 is directly connected, FastEthernet0/0
L 10.10.10.3/32 is directly connected, FastEthernet0/0
20.0.0.0/24 is sub netted, 1 subnets
O E2 20.20.20.0 [110/20] via 10.10.10.2, 00:01:55, FastEthernet0/0
30.0.0.0/8 is variably sub netted, 2 subnets, 2 masks
C 30.30.30.0/24 is directly connected, FastEthernet1/0
L 30.30.30.3/32 is directly connected, FastEthernet1/0
O E2 192.168.1.0/24 [110/20] via 10.10.10.2, 00:01:55, FastEthernet0/0

R2 IP route
10.0.0.0/8 is variably sub netted, 2 subnets, 2 masks
C 10.10.10.0/24 is directly connected, FastEthernet1/0
L 10.10.10.2/32 is directly connected, FastEthernet1/0
20.0.0.0/8 is variably sub netted, 2 subnets, 2 masks
C 20.20.20.0/24 is directly connected, FastEthernet0/0
L 20.20.20.2/32 is directly connected, FastEthernet0/0
30.0.0.0/24 is sub netted, 1 subnets
O IA 30.30.30.0 [110/2] via 10.10.10.3, 00:06:27, FastEthernet1/0
S 192.168.1.0/24 [1/0] via 20.20.20.1

[M02@rt37 · Accepted solution]

Hello @xBan,

Add to

[R1] an ip route

ip route 30.30.30.0 255.255.255.0 20.20.20.2 name R3-R4

Also take care you have interfaces in half duplex mode. Put them in full duplex. Don't hesitate to add description to interfaces and a name to static routes.

[xBan]

But why R4 cant see R5 even the route is already in its routing table?

[M02@rt37]

@xBan 

Because for the "return" flow, called

icmp echo-reply

R1 dont know specificly how to go to

30.30.30.4

Then it uses the

default route

and re send the packet to R5, R5 re send to R1 etc etc...

[xBan]

Thanks for the answer. i will try the solution later. 

[M02@rt37]

You're very welcome @xBan.

Thanks for your feedback.

[xBan]

I tried already and it work.  but im concern now is what if i add new router at the back of R4. so i need to add new route in R1 for every router i add.  any other solution that could automatically learn R1 every new router added behind R4. i tried the

default route

but its only returing 40% from ping.  i

[M02@rt37]

Hello @xBan

On R1 you have that:

R1#

!
ip route 0.0.0.0 0.0.0.0 192.168.1.5
ip route 10.10.10.0 255.255.255.0 20.20.20.2

Modify by this:

R1#

!
ip route 0.0.0.0 0.0.0.0 20.20.20.2
!

If you have network behind R5 to reach, add specific static route from R1 with

next hop 192.168.1.5

[xBan]

The problem if i add

default route

im getting 40% success rate when i ping the router in ospf area. always like that. i tried adding defaul information originate on R2 stilll the same

[M02@rt37]

Sorry @xBan 

I dont understand.

The problem if i add

default route

Where? Towards ?

im getting 40% success rate when i ping the router in ospf area.

Which IP router ? From where ?

...always like that. i tried adding defaul information originate on R2 stilll the same

Default information always command you mean? You have a

static default route

on R2 ? If not you need to add the key word always.

[xBan]

when i add a

default route

on R1 pointing to R2, R4 cannot reach R5 properly. i tried to ping it from R4 it gives only 40% success rate not 100%, there is a time in between. you can try to run the config to see.

[M02@rt37]

@xBan 

Do you have all interfaces in duplex mode ? No half duplex...

[xBan]

Yes, i already put duplex in full..

heres what i get from R4 ping and

traceroute

R4#ping 192.168.1.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.5, timeout is 2 seconds:
!..!.
Success rate is 40 percent (2/5), round-trip min/avg/max = 44/54/64 ms
R4#t
R4#traceroute 192.168.1.2
Type escape sequence to abort.
Tracing the route to 192.168.1.2
VRF info: (vrf in name/id, vrf out name/id)
1 30.30.30.3 8 msec 8 msec 4 msec
2 10.10.10.2 16 msec 20 msec 20 msec
3 * * *
4 * * *
5 * * *
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 *




This from R4

R5#ping 30.30.30.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 30.30.30.4, timeout is 2 seconds:
.!..!
Success rate is 40 percent (2/5), round-trip min/avg/max = 44/56/68 ms
R5#tra
R5#traceroute 30.30.30.4
Type escape sequence to abort.
Tracing the route to 30.30.30.4
VRF info: (vrf in name/id, vrf out name/id)
1 192.168.1.1 8 msec 16 msec 20 msec
2 20.20.20.2 16 msec
192.168.1.5 24 msec 8 msec
3 * *
10.10.10.3 48 msec
4 * *
30.30.30.4 56 msec
R5#




From R5

[xBan]

sorry did mistake heres the

traceroute

from R4 to R5

R4#traceroute 192.168.1.5
Type escape sequence to abort.
Tracing the route to 192.168.1.5
VRF info: (vrf in name/id, vrf out name/id)
1 30.30.30.3 4 msec 24 msec 8 msec
2 10.10.10.2 20 msec 28 msec 24 msec
3 * * *
4 *
192.168.1.5 60 msec *
R4#

[M02@rt37]

Please provide the output

#show ip route

from R2, R3 and R4 ?

R5 still has got

default route to 192.168.1.1

?

R1 has got now

default route to 20.20.20.2

?

Thanks.