Ping issues

Mar 24, 2005 7 Replies
A

Hello, I have a 2600 router that I have configured it to be a DHCP server. This is what I have so far.



Diagram Router e0/0 192.168.1.100 255.255.255.0 ======== Hub ======== --->========== ========== | | LAptop A Laptop B 192.168.1.1 192.168.1.2 255.255.255.0 255.255.255.0


FYI: this is in a lab enviornment



router ip address: 192.168.1.100 Laptop A: 192.168.1.1 SM: 255.255.255.0 GW:192.168.1.100 Laptop B: 192.168.1.2 SM: 255.255.255.0 GW:192.168.1.100



Both Laptops are running windows 2000 OS.



I CAN do the following successfully



Laptop A can ping the router successfully Laptop B can ping the router successfully Laptop A can ping itself and 127.0.0.1 successcully Laptop B can ping itself and 127.0.0.1 successcully



PROBLEM is this ________________



Laptop A cannot ping Laptop B Laptop B cannot Ping Laptop A



From the router I cannot ping Laptop A or B.

Both laptops and router are on the same subnet. ipconfig on both laptop gives me IP address Subnet mask gateway.


Why cannot I ping Laptop A to B or vice versa and why is the router not able to ping either laptops.


Do I need to put a static routes ? please help


Thanks in advance for all your help


Router



Vote
Twitter Facebook LinkedIn
A

Yes I do have Checkpoint firewall clients on the laptops. I did disable them. does that help?

Thanks

Vote
Twitter Facebook LinkedIn
A

That is correct. it still does not work. I am not sure what else I can look. when I do show run command to see the config under memory size it does say no ip routing . Is this something that needs to be changed?

Thanks

Vote
Twitter Facebook LinkedIn
B

Yes, but it has nothing to do with the ping problems you're having. When you ping from PC A to PC B, the router isn't even involved.

You need to enable IP routing so that the PCs will be able to access the Internet.

Vote
Twitter Facebook LinkedIn
M

Check arp caches and traffic on each device, use a sniffer if required, double check IP addresses handed out by DHCP, replace the hub.

M
Vote
Twitter Facebook LinkedIn
J

can laptop ping the router? yes? turn off firewall on laptop

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required