I'm trying to connect a Win Server 2k8 R2 system to a remote machine via IPSec. For this, I got the following settings from the other party:
Phase 1: PSK, AES256, SHA-1 Group 2
Phase 2: AES256, SHA-1
Encryption Domain: xxx.yyy.zzz.0/24 <-> aaa.bbb.ccc.ddd
To test the IPSec connection use xxx.yyy.zzz.104:22 (telnet to that Port).
Where xxx.yyy.zzz are the first three bytes of the remote IP address and aaa.bbb.ccc.ddd represent the IP address of our 2k8 R2 server.
I tried to set the IPSec connection up in Windows Firewall with Advanced Security, but choosing PSK for the first authentication method disables the use of the second authentication method. I also tried to create a VPN of type Layer 2 Tunneling Protocol with IPSec (L2TP/IPSec) the "conventional" way for which I can provide the PSK. But then I cannot figure out how to set up all the other settings like AES, SHA, IP addresses, second authentication method, etc. at all.
I've never set up an IPSec connection before, so I'm totally new to this field. Detailled instructions or maybe some hints whether I'm searching in the right direction would very much help me.
I know that a similar question can be found here: Can I use Win 2k8 R2 as an IPSEC client?. But I couldn't figure out how to solve the problem based on the answer provided there.