Unable to connecto 3750 with Cisco Network Assistant using https

chris.kidd · ‎03-12-2009

I have multiple 3750's and have been able in the past to connect to them using CNA with https. We are using Radius and have https enabled on all 3750's. I can connect via putty using ssh successfully. But when trying to connect to some of the 3750's it fails with unable to connect. Any ideas on what I can check or where?

I have verified the https settings on both a 3750 I can connect to with https and one I cannot connect to with https they are identical in the config and status.

Thanks,

Chris

Yudong Wu · ‎03-12-2009

Did you generate crypto key?

crypto key generate rsa

chris.kidd · ‎03-12-2009

Yes key has been generated on all 3750's and upon first connection to the 3750's via Putty it asks to accept the key and I have accepted for all switches. What's weird is I can connect via Putty fine using SSH but not using https via the CNA

Yudong Wu · ‎03-12-2009

Could you try:

1. disable https and then re-enable it.

2. Use browser to try https connection.

3. post config from both working and not-working swtich.

4. is there IOS version diff between them?

5. Do a packet sniffer to see in which step HTTPS connection is failed.