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chall32 / LDWin

Link Discovery for Windows
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Pressing Get Link Data counts to 60 without results #10

Open alex869 opened 8 years ago

alex869 commented 8 years ago

Hi,

I use Windows 10 version 1511 (OS build 10586.318) and Cisco switches. I can't get info for some reason and would like to know how to troubleshoot this issue or what should be done computer or network wise to get Link Data.

Thank you

chall32 commented 8 years ago

Please can you follow https://github.com/chall32/LDWin/wiki/What-To-Do-If-LDWin-Captures-No-Data to see if you can manually capture some data. If you do capture some data from tcpdump, please can you post it here. Feel free to replace IP addresses / hostnames etc first.

alex869 commented 8 years ago

I ran TCPDUMP according to the instructions, but it got no data back, the screen was just black. I have a friend in other organization that tried the same thing and it worked for him and for me it didn't. It is so frustrating. I asked my network guy to check out perhaps CDP on cisco should be on but he tried enabling CDP and said it is already on and even "turning it on" didn't help. Please advise what else could be the issue. Local windows firewall settings are OFF.

On Wed, May 25, 2016 at 5:47 PM, Chris Hall notifications@github.com wrote:

Please can you follow https://github.com/chall32/LDWin/wiki/What-To-Do-If-LDWin-Captures-No-Data to see if you can manually capture some data. If you do capture some data from tcpdump, please can you post it here. Feel free to replace IP addresses / hostnames etc first.

— You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub https://github.com/chall32/LDWin/issues/10#issuecomment-221599791

chall32 commented 8 years ago

Couple of suggestions -

  1. Connect directly to the Cisco device in question and try LDWin and TCPDUMP again. That way you are 100% sure you are connected to a specific device and not via 1001 other devices in the circuit.
  2. Run wireshark to confirm presence of CDP. You can filter Wireshark on "cdp".