l2tp+IPsec client on FreeBSD, VPN gateway on Windows

[Victor Sudakov]

Sam Fourman wrote:
> I am also interested to see a working configuration, I need to connect a
> FreeBSD client to a Windows Server via L2TP+IPSEC pre-shared key.

I can't say for sure about the L2TP server, but the following config
works in my lab between a Windows 2016 server and FreeBSD/Strongswan:

conn Win2016
    keyexchange = ikev1
    ike=3des-sha1-modp2048!
    esp=3des-sha1!
    left=192.168.246.1
    right=192.168.246.14
    type=transport
    authby=psk
    auto=route

In Windows policies, configure:

3DES+SHA1 (both for IKE and ESP), DH Group (for IKE) = high, PFS = off (keep unchecked).


-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet http://vas.tomsk.ru/
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