>> do your l2tp logs show the connection?
>>
>
>Nope. It always fails on the ipsec connection.

hm, not sure that this is true; in the logs you posted, you do get a IPsec SA established which, in my experience, means that the tunnel is successfully established. However, it is immediately followed by :

received Delete SA(0x1728294a) payload: deleting IPsec State

which means something is telling it to un-establish, which might be a failure to connect to the l2tp daemon, for example because your iptables rules are not correct or the roadwarrior has a firewall blocking it. might be something else too, I suppose.

The only l2tp unit I have that is still in production is using version 3.12 of libreswan and has 17/%any on both sides, so maybe you will need an older version. fwiw, here is the config:

conn rw-l2tp-ugl-withnat
   rightsubnet=vhost:%no,%priv
   also=rw-l2tp-ugl-nonat

conn rw-l2tp-ugl-nonat
   left=x.x.x.x
   leftnexthop=x.x.x.y
   leftprotoport=17/%any
   leftcert=firewall.ugl
   right=%any
   rightprotoport=17/%any
   rightca=%same
   pfs=no
   dpddelay=30
   dpdtimeout=120
   dpdaction=clear
   auto=add


On 2019-10-30 12:14 p.m., John Crisp wrote:
On 30/10/19 19:41, John Crisp wrote:


can try setting both right and left protoport to 17/%any.


Failed to add connection "L2TPD-PSK": cannot have protoport with %any on
both sides

:-)


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