Ian Mackinnon

Asked: 2014-11-04 15:11:42 +0800 CST2014-11-04 15:11:42 +0800 CST 2014-11-04 15:11:42 +0800 CST

How to debug IPsec L2TP authentication failure (Ubuntu StrongSwan client to Windows Server 2012)

I'm trying to connect via IPsec L2TP to a Windows Server 2012 server. Both the clients and the host are behind a NAT.

I can connect from a Windows 7 machine without any problems, but when trying to connect using the same password from an Ubuntu 14.10 machine running StrongSwan I receive an AUTHENTICATION FAILED error message.

Having administrator access to the server and the client, where can I find more information about what is causing the authentication failure?

Given that the password is definitely correct, what other factors could cause an authentication error (rather than other sorts of connection errors)?

How to debug IPsec L2TP authentication failure (Ubuntu StrongSwan client to Windows Server 2012)

Can you pass user/pass for HTTP Basic Authentication in URL parameters?

Ping a Specific Port

Check if port is open or closed on a Linux server?

How to automate SSH login with password?

How do I tell Git for Windows where to find my private RSA key?

What's the default superuser username/password for postgres after a new install?

What port does SFTP use?

Command line to list users in a Windows Active Directory group?

What is a Pem file and how does it differ from other OpenSSL Generated Key File Formats?

How to determine if a bash variable is empty?

How to debug IPsec L2TP authentication failure (Ubuntu StrongSwan client to Windows Server 2012)

0 Answers