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Unable to ping Router_B and Router_C from Router_A

Posted on 2007-11-25
2
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Last Modified: 2008-02-01
Hi,

I have layout my topology using CCNA Network Visualizer 5.0. I have Router_A, Router_B, and Router_C and all connected to each other through serials.

When I send a ping regardless which router I'm in, i get 0 percent success rate.

Maybe my configuration is the issue but cannot seems to locate the source of the problem.

Below are my configuration pf all routers:


Router_A

 

Router_A Con0 is now available

 

Press RETURN to get started!

 

Router_A>

Router_A>show running-config

              ^

% Invalid input detected at '^' marker.

Router_A>enable

Router_A#show running-config

 

Building configuration...

Current configuration : 625 bytes

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname Router_A

!

!

!

ip subnet-zero

!

!

!

!

!

interface FastEthernet0/0

  ip address 172.16.10.1 255.255.255.0

  no ip directed-broadcast

!

interface Serial0/0

  ip address 172.16.20.1 255.255.255.0

  no ip directed-broadcast

!

interface FastEthernet0/1

  no ip address

  no ip directed-broadcast

  shutdown

!

interface Serial0/1

  no ip address

  no ip directed-broadcast

  shutdown

!

!

ip classless

no ip http server

ip route 172.16.30.0 255.255.255.0 172.16.20.2

ip route 172.16.40.0 255.255.255.0 172.16.20.2

!

!

!

line con 0

line aux 0

line vty 0 4

  login

!

end

 

Router_A#

 

 

 

 

 

 

 

 

 

Router_B Con0 is now available

 

Press RETURN to get started!

Router_B>enable

Router_B#show running-config

 

Building configuration...

Current configuration : 625 bytes

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname Router_B

!

!

!

ip subnet-zero

!

!

!

!

!

interface FastEthernet0/0

  no ip address

  no ip directed-broadcast

  shutdown

!

interface Serial0/0

  ip address 172.16.20.2 255.255.255.0

  no ip directed-broadcast

!

interface FastEthernet0/1

  no ip address

  no ip directed-broadcast

  shutdown

!

interface Serial0/1

  ip address 172.16.30.1 255.255.255.0

  no ip directed-broadcast

!

!

ip classless

no ip http server

ip route 172.16.40.0 255.255.255.0 172.16.30.2

ip route 172.16.10.0 255.255.255.0 172.16.20.1

!

!

!

line con 0

line aux 0

line vty 0 4

  login

!

end

 

Router_B#

 

 

 

 

 

Router_C Con0 is now available

 

Press RETURN to get started!

 

Router_C>

Router_C>enable

Router_C#show running-config

 

Building configuration...

Current configuration : 625 bytes

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname Router_C

!

!

!

ip subnet-zero

!

!

!

!

!

interface FastEthernet0/0

  ip address 172.16.40.1 255.255.255.0

  no ip directed-broadcast

!

interface Serial0/0

  ip address 172.16.30.2 255.255.255.0

  no ip directed-broadcast

!

interface FastEthernet0/1

  no ip address

  no ip directed-broadcast

  shutdown

!

interface Serial0/1

  no ip address

  no ip directed-broadcast

  shutdown

!

!

ip classless

no ip http server

ip route 172.16.10.0 255.255.255.0 172.16.30.1

ip route 172.16.20.0 255.255.255.0 172.16.30.1

!

!

!

line con 0

line aux 0

line vty 0 4

  login

!

end

 

Router_C#
0
Comment
Question by:mcse2007
2 Comments
 
LVL 11

Accepted Solution

by:
sysreq2000 earned 125 total points
ID: 20363475
You need to set the clock rate on the DCE end of the serial connections. Not sure how you know which end is DCE in Visualizer, but try show controller.

You may have set the DCE end when laying out your topology...I've never used the simulator, but you definitely need to set the clock rate on DCE.

So something like:

router#config t
router(config)int s0/0
router(config-if)encapsulation hdlc
router(config-if)clock rate 64000
router2(config-if)no shutdown
0
 
LVL 7

Author Comment

by:mcse2007
ID: 20363588
Thanks it works fine after setting the clock rate...I shouldn't have relied on the simulator !
0

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