topic Re: Unable to access https://10.10.20.161 after successful VPN connect in DevNet Sandbox

Unable to access https://10.10.20.161 after successful VPN connection

PiotrWikarski44780 — Fri, 04 Jun 2021 03:55:59 GMT

I've been using CML 2.0 for a while now, and never had that problem before.

For the second day in a row, after successful VPN connection using Cisco AnyConnect I am unable to open https://10.10.20.161 to access CML web interface. I didn't change anything in my PC. Can someone tell me what might be the cause?

Re: Unable to access https://10.10.20.161 after successful VPN connect

NBenat — Mon, 16 Jan 2023 17:57:14 GMT

Hello, I have the same problem. I just found out that if I uninstall NordVPN, I can reach the lab platform at 10.10.20.161. Stopping the NordVPN process is not enough. It looks like NordVPN and AnyConnect create conflicting network adapters. That's how much I know but I'm still stuck with the problem. I can't uninstall NordVPN everytime I want to do a lab. I welcome any suggestion anyone can provide.

Re: Unable to access https://10.10.20.161 after successful VPN connect

bigevilbeard — Tue, 17 Jan 2023 11:25:31 GMT

Check your local routing table, you might need to put in static route to direct traffic over the the sandbox VPN.

Hope this helps.

Re: Unable to access https://10.10.20.161 after successful VPN connect

NBenat — Thu, 19 Jan 2023 21:11:51 GMT

Hello Bigevilbeard, that sounds like a great suggestion but unfortunately,
I have no clue on how to implement it on my Windows laptop. Any further
help will be appreciated. Thank you in advance

Re: Unable to access https://10.10.20.161 after successful VPN connect

bigevilbeard — Fri, 20 Jan 2023 09:56:01 GMT

This should help. https://www.geeksforgeeks.org/how-to-add-a-static-route-to-windows-routing-table/

Re: Unable to access https://10.10.20.161 after successful VPN connect

NBenat — Sat, 21 Jan 2023 03:40:53 GMT

An update: I was able to get the connection to 10.10.20.161 without having to uninstall NordVPN; I just disabled the automatic startup of NordVPN services, less painful than the uninstall. Which does prove the existence of a conflict between AnyConnect and NordVPN. Thank you. I'll take this as a solution even if it's not 100% satisfactory but I can live with it.

Re: Unable to access https://10.10.20.161 after successful VPN connect

NBenat — Mon, 06 Mar 2023 16:43:42 GMT

Hello Bigevilbeard,

Never too late but you were on the right track. All AnyConnect routes in my Windows routing table had a gateway of 192.168.254.1 when they should have 192.168.1.254. Fixing this let me reach 10.10.20.161. Thank you so much.

I still have to disable NordVPN to reach it but as I mentioned earlier, I can live with that. At least, at last: I can do labs!!

Remains the question on why the gateway addresses were incorrect, is this because of AnyConnect?

Re: Unable to access https://10.10.20.161 after successful VPN connect

bigevilbeard — Tue, 07 Mar 2023 10:50:54 GMT

@NBenat good its working, dual VPNs have always caused me issues in the past. Not sure on your gateway question, i guess it depends how the VPN is set up.