09-20-2005 11:06 AM - edited 03-03-2019 10:32 AM
Hi all, I have a routing problem. I can ping Lan2 from Router1, and I can ping Lan1 from Router2. Also I can ping the Serial side of Router1 from Lan2, and the Serial side of Router2 from Lan1. However I cannot ping LAN to LAN, and I cannot ping the ethernet side of Router1 from Lan2, or the ethernet side of Router2 from Lan1. This is a T1 leased line(Point to Point). Thanks for any help.
(Lan 1)
192.168.5.208
(Router 1)
192.168.5.2
192.168.4.3
(Router2)
192.168.6.2
192.168.7.2
(Lan 2)
192.168.7.208
09-20-2005 11:29 AM
Can you paste a sh ip route from either ends. Have you verified, all default gateways are properly set, as well as no ACLs of any sort configured on the router ?
Also why arent your serial interface ip's from the same subnet ..? (4.x on one end and 6.x on other end)
09-20-2005 11:44 AM
Thanks for the reply, The Serial interfaces were on the same subnet, I changed them today as something else to try. Router1 was 192.168.4.3 (which it still is) and Router2 was 192.168.4.2. Router1 is still showing Router2 as the gateway of last resort.Once again thanks.
routes are as follows.
**Router1**
C 192.168.4.0/24 is directly connected, Serial0
C 192.168.5.0/24 is directly connected, FastEthernet0
S* 0.0.0.0/0 [1/0] via 192.168.4.2
**Router2**
C 192.168.7.2 is directly connected, FastEthernet0
S 192.168.4.0/24 is directly connected, Serial1
S 192.168.5.0/24 is directly connected, Serial1
C 1.2.3.4 is directly connected, Serial0
C 192.168.6.0/24 is directly connected, Serial1
S 192.168.1.0/24 [1/0] via 192.168.7.208
S* 0.0.0.0/0 [1/0] via 1.2.3.4
I'm trying to keep the public address edited out, I hope your getting the info you need.
09-20-2005 11:32 AM
Here are the router configs, I've edited some info, as in passwords, and public addresses but the pertinent stuff is there. Thanks again.
***Router1***
version 12.0
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname Router1
!
!
ip subnet-zero
ip name-server 1.2.3.4
!
!
!
!
interface Serial0
description connected to Cisco1720
ip address 192.168.4.3 255.255.255.0
no ip directed-broadcast
no ip route-cache
service-module t1 timeslots 1-24
service-module t1 remote-alarm-enable
!
interface FastEthernet0
description LAN
ip address 192.168.5.2 255.255.255.0
no ip directed-broadcast
!
router rip
version 2
network 192.168.4.0
network 192.168.5.0
no auto-summary
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.4.2
ip route 0.0.0.0 0.0.0.0 192.168.6.2
ip route 192.168.1.0 255.255.255.0 192.168.7.2
!
!
line con 0
exec-timeout 0 0
login
transport input none
line aux 0
line vty 0 4
login
!
end
***Router2***
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router2
!
logging buffered 4096 debugging
!
ip subnet-zero
no ip finger
ip name-server 1.2.3.4
!
!
!
!
interface Serial0
description Internet T1
ip address 1.2.3.4 255.255.255.252
no ip directed-broadcast
no ip route-cache
no fair-queue
service-module t1 timeslots 1-24
!
interface Serial1
description point to point
ip address 192.168.6.2 255.255.255.0
no ip directed-broadcast
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
interface FastEthernet0
description LAN
ip address 192.168.7.2 255.255.255.0
no ip directed-broadcast
!
router rip
version 2
passive-interface Serial0
network 192.168.7.0
network 192.168.6.0
no auto-summary
!
ip classless
ip route 192.168.4.0 255.255.255.0 Serial1
ip route 192.168.5.0 255.255.255.0 Serial1
ip http server
ip http access-class 1
!
!
line con 0
transport input none
line aux 0
line vty 0 4
access-class 1 in
login
!
end
09-20-2005 11:41 AM
When you connect two routers via a leased line, that segment needs to be in the same subnet. Your router 1's serial is 192.168.4.3 while your router 2's serial is 192.168.6.2. Change one of the sides to belong to the same subnet (Say change 192.168.6.2 to 192.168.4.2)
HTH
09-20-2005 11:51 AM
You have a lot of routes messed up which needs to be fixed.
First things first - Is router 1's serial 0 connected to router 2's serial 1 ? Your routing table seem to indicate that.
Remove the following routes from Router 1:
no ip route 0.0.0.0 0.0.0.0 192.168.6.2
no ip route 192.168.1.0 255.255.255.0 192.168.7.2 (I dont see a 192.168.1.0 in your router, remove this route, unless you need it)
On Router 2 which has serial connection to Internet, Remove the following router.
no ip route 192.168.4.0 255.255.255.0 Serial1
and Add the following routes to the Router 2.
ip route 192.168.5.0 255.255.255.0 serial 1
ip route 0.0.0.0 0.0.0.0 serial 0 --> default route to Internet.
This should work.
HTH
09-20-2005 11:57 AM
Thanks, I'll try your suggestions right now.
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