angelasasse
asked on
Cannot ping from Cisco Router
I am pretty sure I have this setup correctly. Basically I have a Cisco 2600 router. I have one WIC (fastethernet0/0)
I have the router connected to my laptop via console cable and network cable. The laptop is setup with and IP of 10.10.1.81 subnet 255.255.255.0
I just want to make sure the router can communicate through the WIC to the laptop. I set the fastethernet interface on the router to 10.10.1.82 with sam subnet.
There is no other machine using this ip.....shouldn't I be able to ping the laptop now?
The router can ping itself fine and my interface is set for up/up.... there is a no shut on it also...
hmmmm... any ideas
I have the router connected to my laptop via console cable and network cable. The laptop is setup with and IP of 10.10.1.81 subnet 255.255.255.0
I just want to make sure the router can communicate through the WIC to the laptop. I set the fastethernet interface on the router to 10.10.1.82 with sam subnet.
There is no other machine using this ip.....shouldn't I be able to ping the laptop now?
The router can ping itself fine and my interface is set for up/up.... there is a no shut on it also...
hmmmm... any ideas
ASKER
I have tried a crossover cable from the laptop to the router and also from the switch to the router.
The cable should be a rollover cable for Cisco equipment. See http://www.cisco.com/univercd/cc/td/doc/product/fhubs/bmmicg/bmmconn.htm for a description of these cables. Basically, pin 1 goes to pin 8, pin 2 goes to pin 7, and so on. They're Cisco-proprietary, and you might have recieved one with your router. Mine are almost always a flat, light-blue cable.
Sorry, I misunderstood. The rollover cable connects a computer to the console port, but you're concerned about the WAN port. In that case, try turning on ip packet debugging (debug ip packet) and see if the ping arrives on the router or not.
Hmmm...
WIC does not equal FastEthernet. The only FastEthernet interface is on the main board, with yellow label
WIC= Wan Interface Card like a T1DSU or serial interface. Has two screws, fits in slot above the Ethernet/Console/aux ports..
Ethernet crossover required for direct connect between laptop and router
Standard patch cable required between router and switch, and between switch and laptop
WIC does not equal FastEthernet. The only FastEthernet interface is on the main board, with yellow label
WIC= Wan Interface Card like a T1DSU or serial interface. Has two screws, fits in slot above the Ethernet/Console/aux ports..
Ethernet crossover required for direct connect between laptop and router
Standard patch cable required between router and switch, and between switch and laptop
ASKER
I didn't mean to say WIC. .... I am plugging the cable into the FasEthernet port. When I use a crossover direct from the laptop I still cannot get communication.
>I have the router connected to my laptop via console cable and network cable.
Connect only to the fastethernet port. Go to a command prompt and check your routing table (route print). You should see either a default gateway pointing to the router's interface or you are in broadcast mode and your gateway and IP are the same. Either way, you should be able to ping the router's interface. If not, do arp -a and check your arp table. If you don't see the cisco connected, you have a connectivity problem at (most likely) layer 1. If you do see it there, you have a network problem (layer 3). In which case you either have a firewall or access list on one of the ports that is dropping the ICMP traffic.
For connection to the console port you need a rollover cable. But if you're using a hyperterm session at the same time as trying to ping, your traffic may be going through the serial port of the laptop instead of the NIC--never tried it, so I'm not sure.
Connect only to the fastethernet port. Go to a command prompt and check your routing table (route print). You should see either a default gateway pointing to the router's interface or you are in broadcast mode and your gateway and IP are the same. Either way, you should be able to ping the router's interface. If not, do arp -a and check your arp table. If you don't see the cisco connected, you have a connectivity problem at (most likely) layer 1. If you do see it there, you have a network problem (layer 3). In which case you either have a firewall or access list on one of the ports that is dropping the ICMP traffic.
For connection to the console port you need a rollover cable. But if you're using a hyperterm session at the same time as trying to ping, your traffic may be going through the serial port of the laptop instead of the NIC--never tried it, so I'm not sure.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
I have a similiar setup. I have a 2620XM with a Serial 0/0 CSU/DSU T-1 card, Fast Ethernet 0/0, and I recently added a NM-4E which is a 4 port Ethernet Network module. E1/0,E1/1,E1/2,E1/3.
Can you post a running config type:
show running-config
make sure to XXX out any reference to our IP assigned by your ISP for security purposes.
If your using Windows XP SP2 by default the Firewall is turned on. If you go into the control panel on the laptop and choose Windows Firewall on the first tab choose off then click apply. This will turn off your firewall.
I have also noticed when troublshooting a similar issue that the computer needs to reboot while the static IP is set.
Have you tried the simple fix? It might be just a bad cable. Replace it.
Are you getting link lights on both ends? Are you using a store bought crossover cable or just a cable you created? Might be a good idea to go pick up one.
Can you post a running config type:
show running-config
make sure to XXX out any reference to our IP assigned by your ISP for security purposes.
If your using Windows XP SP2 by default the Firewall is turned on. If you go into the control panel on the laptop and choose Windows Firewall on the first tab choose off then click apply. This will turn off your firewall.
I have also noticed when troublshooting a similar issue that the computer needs to reboot while the static IP is set.
Have you tried the simple fix? It might be just a bad cable. Replace it.
Are you getting link lights on both ends? Are you using a store bought crossover cable or just a cable you created? Might be a good idea to go pick up one.
ASKER
I would just like to thank everyone a bunch for all the help...
You guys are AWESOME!!
You guys are AWESOME!!
If you are connecting the PC directly to the router, you will need a crossover cable.
-Don