POINT TO POINT TUNNEL

[atul.kumar323]

Hi guys,

First time here

i am having trouble with the point to point tunnel that i configured on the two routers

When i do sh ip int brief, tunnel on the both routers is whowing up but i am not able to ping the destination ip adddresses on the both router and lan ips

don't know where i am going wrong

**************************************************************

interface Tunnel0

bandwidth 1000

ip address 10.2.0.1 255.255.255.252

ip virtual-reassembly

ip tcp adjust-mss 1460

tunnel source FastEthernet4.4090

tunnel destination 172.17.3.140

****************************************************************

interface Tunnel0

description Tunnel to Auckland HO (CHEMAK1)

bandwidth 1000

ip address 10.2.0.2 255.255.255.252

ip virtual-reassembly

ip tcp adjust-mss 1460

tunnel source Dialer0

tunnel destination 172.23.2.206

***********************************************************************

chemak2m001#ping 172.17.2.206

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.17.2.206, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

***********************************************************************************

CHEMAK1R001#ping 172.17.3.140

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.17.3.140, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

Please help

Atul

[Ali Norouzi]

1- Add Keepalive command under the interface tunnel. keepalive 5 2 is ok. After timer expires it will show you if the tunnel is realy up o not.

2- Ping the tunnel destination with IP of tunnel source as source of the ping. It will show you that the path status.

[atul.kumar323]

hi Ali, thanks for the reply.

I did keepalive 5 2 and that made the tunnel protocol down.

still going throug the pain

[Sandeep Choudhary]

Hi Atul,

Yiu can ping the tunnel ip address......(In ur case: 10.2.0.1 or 2), and you can not ping the provider ip address.

If you want to test the tunnel then try to ping tunnel ip address.

one more command to test tunnel:

test int tunnel 0

REgards

please rate if it helps.

[atul.kumar323]

Hi Sandeep,

Cant ping the tunnel ip address as well.

i used this command test int tunnel 0

chemak2m001# test int tu0

... Failed - not connected problem

1 interfaces: 0 passed, 1 failed, 0 skipped, 0 untestable

[Sandeep Choudhary]

Can you paste the output of this coomand: sh int tunnel0 from both end.

Or just configure like this:

interface Tunnel1

desc bandwidth 1000

ip address 10.2.0.1 255.255.255.252

ip mtu 1300

ip tcp adjust-mss 1260

tunnel source xxx.xxx.xxx.xxx

tunnel destination xxx.xxx.xxx.xxx

means reduce the tcp adjust value .

If still not works then please paste the whole config of routers.(To get the whole overview)

Regards

Please rate if it helps.

[atul.kumar323]

Hi Sandeep,

As soon as i have removed the keep alive from the tunnel interface, tunnel come back up

and when i run this test int tu0 command, it give me the following result

CHEMAK1R001#test in tu0

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!! Passed

1 interfaces: 1 passed, 0 failed, 0 skipped, 0 untestable

[Sandeep Choudhary]

It means your tunnel is working.....

try to ping your tunnel ip address??

Regards

[atul.kumar323]

still can't ping the tunnel ip address 10.2.0.1 or 10.2.0.2.

even if the test command is showing me pass

[Sandeep Choudhary]

can you paste the config of the interface ???

step1: just check with your provide(Is the ip address from provider is online.)

if still fails then please paste ur whole config.

Regards

please rate if it helps.