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Able to ping from but not to

By tech_know ·
I have a PC that is getting its IP address from a Novell DHCP server. This PC can ping all other PC's, servers, etc. The loopback test works fine. However, this PC cannot be pinged from any other workstation. They are all on the same subnet and all other PC's can be pinged. This is a laptop that has been using the nic in the docking station so I switched it to use the nic in the laptop. The IP addresses change but they are still not pingable. HELP!!!

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Able to ping from but not to

by sgt_shultz In reply to Able to ping from but not ...

is the nic the laptop a 100MB nic?

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Able to ping from but not to

by tech_know In reply to Able to ping from but not ...

The nic is 3com 3c920 Integrated Fast 10/100

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Able to ping from but not to

by Cactus Pete In reply to Able to ping from but not ...

Is the laptop running anything like ZoneAlarm?

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Able to ping from but not to

by tech_know In reply to Able to ping from but not ...

No software of that type at all. The weird thing is if I uninstall TCP/IP and reinstall it, you can ping it until you reboot the PC...

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Able to ping from but not to

by Cactus Pete In reply to Able to ping from but not ...

I find this particularly interesting.. But could you provide more information? Machine brand/type, OS, installed apps...

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Able to ping from but not to

by tech_know In reply to Able to ping from but not ...

Dell Latitude C610, 256 MB RAM, Windows 2000, Office XP, Client Access Express, Norton Anti-virus, Track-IT, Visio, Roxio, AT&T dialer, Cisco VPN, Lotus Notes. This is the strangest IP problem I have ever run across.

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Able to ping from but not to

by Cactus Pete In reply to Able to ping from but not ...

Can you traceroute to the machine? If not, how close does it get?

The only software in there that could remotely have anything to do with it is Cisco VPN [depending on the version]. You might try uninstalling and rebooting...

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Able to ping from but not to

by Cactus Pete In reply to Able to ping from but not ...

Also, I assume you've tried to ping the IP address as opposed to the machine name? I know ping doesn't like names that begin with hyphens...

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Able to ping from but not to

by tech_know In reply to Able to ping from but not ...

Cannot do a tracert to it. It is on the same subnet and is only 1 hop away. The IP address is what I have been trying to ping all along. I did try to do it by computer name with the same result. The VPN software is loaded but not initiated. That is used for remote dial in purposes so it is not active when the PC is on the LAN.

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Able to ping from but not to

by Cactus Pete In reply to Able to ping from but not ...

Have you tried swapping the cable to a known good port on the hub/switch?

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