Ping help

rdtech

I have two cisco routers 2500, when I ping each of the routers the ping is successful, when I ping the two computer it hooks up to the routers they can not ping each other. when I ping from the routers I am able to ping both computer. When I ping from the computer it is able to ping both routers. thank you for anyone help.

Ching01

Can you show me your configuration it's difficult to troubleshoot if we don't know your configuration.

brAun

em..., i think u should check ur routing protocol, u need routing protocol to route the traffic. make sure u configure rite the routing protocol..

mikej412

brAun wrote:

i think u should check ur routing protocol

Yep, I think brAun nailed it.

Sounds like you have the default gateways on the PCs... and the routers know about their connected networks, but not the networks connected to the other router.

You either need static routes or to run a routing protocol and advertise those networks.

There is a CCNA TechLab here on Configuring a RIP Network that might push you in the right direction. The network you described looks like the network in this TechLab.
http://www.techexams.net/technotes/ccna/lab_1_rip.shtml

binarysoul

also make sure one router is properyly set as DCE althouth I believe this is automatic. Ensure, as other mentioned, you have RIP or IGRP properly enabled.

forbesl

binarysoul wrote:

also make sure one router is properyly set as DCE

If this was his problem, his routers wouldn't be able to ping each other as he indicated in original post:

from his original post:
when I ping each of the routers the ping is successful

Troubleshooting 101.....

rdtech

I do setup my DCE and my Ip Roting Protocol

This is the routers configuration.



R-1#sh run
Building configuration...

Current configuration:
!
version 11.0
service udp-small-servers
service tcp-small-servers
!
hostname R-2
!
!
username R-2 password 7 030752180500
!
interface Ethernet0
ip address 192.168.1.1 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
ip address 192.168.10.10 255.255.255.0
encapsulation ppp
ppp authentication chap
!
ip route 192.168.2.0 255.255.255.0 192.168.10.20
!
line con 0
line 1 8
transport input all
line aux 0
transport input all
line vty 0 4
login
!
end

R-1#

---

R-2>en
R-2#sh run
Building configuration...

Current configuration:
!
version 11.0
service udp-small-servers
service tcp-small-servers
!
hostname R-2
!
!
username R-1 password 7 030752180500
!
interface Ethernet0
ip address 192.168.2.1 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
ip address 192.168.10.20 255.255.255.0
encapsulation ppp
ppp authentication chap
!
ip route 192.168.1.0 255.255.255.0 192.168.10.10
!
line con 0
line 1 8
transport input all
line aux 0
transport input all
line vty 0 4
login
!
end

R-2#

BubbaJ

Both have the same hostname: R-2. that will mess up your CHAP authentication. You should also set the speed on the DCE side.

forbesl

Nice enable password by the way....I think everyone should use "cisco" for their enable password

rdtech

I have two cisco routers 2500, when I ping each of the routers the ping is successful, when I ping the two computer it hooks up to the routers they can not ping each other. when I ping from the routers I am able to ping both computer. When I ping from the computer it is able to ping both routers. thank you for anyone help.



This is the config Files.

R-1#sh run
Building configuration...

Current configuration:
!
version 11.2
!
hostname R-1
!
!
username R-2 password 7 01100F175804
!
interface Ethernet0
ip address 192.168.1.1 255.255.255.0
!
interface Serial0
ip address 192.168.10.10 255.255.255.0
encapsulation ppp
no fair-queue
clockrate 64000
ppp authentication chap
!
interface Serial1
no ip address
shutdown
!
no ip classless
ip route 192.168.2.0 255.255.255.0 192.168.10.20


!
line con 0
line aux 0
line vty 0 4
login
!
end

R-1#

---

R-2#sh run
Building configuration.

Current configuration:
!
version 11.0
service udp-small-servers
service tcp-small-servers
!
hostname R-2
!
!
username R-1 password 7 030752180500
!
interface Ethernet0
ip address 192.168.2.1 255.255.255.0
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
ip address 192.168.10.20 255.255.255.0
encapsulation ppp
ppp authentication chap
!
ip route 192.168.1.0 255.255.255.0 192.168.10.10


!
line con 0
line 1 8
transport input all
line aux 0
transport input all
line vty 0 4
login
!
end

R-2#

BubbaJ

O.K. You posted the router configs, but the other part is the PC configs. What do you get when you run ipconfig /all?

rdtech

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 192.168.2.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1


C:\>ping 192.168.1.2

Pinging 192.168.1.2 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.2:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),







Ethernet adapter Local Area Connection

Connection-specific DNS Suffix .
IP Address. . . . . . . . . . . . 192.168.1.2
Subnet Mask . . . . . . . . . . . 255.255.255.0
Default Gateway . . . . . . . . . 192.168.1.1



This is the PCs Configuration

C:\>ping 192.168.2.2

Pinging 192.168.1.2 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.2.2:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

EdTheLad

Disable the firewall on your pc's

rdtech

Both PCs firewall are disable already

EdTheLad

From PC1 can you ping 192.168.10.10 if yes can you ping 192.168.10.20,
why dont you first try the setup with hdlc on the serial links.Break the problem down to localise the problem.

Your missing your enable passwords on both routers, you have the username and password but you dont have a local password set.

rdtech

I can not ping serial interface of the routers


C:\>ping 192.168.10.20

Pinging 192.168.10.20 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.10.20:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\>ping 192.168.10.10

Pinging 192.168.10.10 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.10.10:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)

mikej412

What do the routing tables on the routers look like?
sh ip route

What's the IOS version on these routers? From the config it look like some sort of 11

And what the heck... how about a
sh ip int brief
for each router too.