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nm-l2tp / NetworkManager-l2tp

L2TP and L2TP/IPsec support for NetworkManager
GNU General Public License v2.0
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Disconnect after a few minutes #118

Closed cprog closed 4 years ago

cprog commented 4 years ago

Hello, I use Arch Linux . . Using NetworkManager-l2tp I setup L2TP with preshared key.. My settings are:

Phase 1 algorithms: 3des-sha1-modp1024 Phase 2 algorithms: 3des-sha1 Authentication: MSCHAP && MSCHAP2

ipsec --version Linux Libreswan 3.29 (netkey) on 5.4.14-arch1-1

System xl2tpd is disabled.

When I run sudo /usr/lib/NetworkManager/nm-l2tp-service --debug I see this error:

xl2tpd[51626]: Can not find tunnel 22 (refhim=0)
xl2tpd[51626]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 22 Dumping.
xl2tpd[51626]: Can not find tunnel 22 (refhim=0)
xl2tpd[51626]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 22 Dumping.
xl2tpd[51626]: Can not find tunnel 22 (refhim=0)
xl2tpd[51626]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 22 Dumping.
xl2tpd[51626]: Maximum retries exceeded for tunnel 13568.  Closing.
xl2tpd[51626]: Terminating pppd: sending TERM signal to pid 51627
dkosovic commented 4 years ago

Sorry I'm not sure. I vaguely remember seeing similar error output and it was related to broken routing.

cprog commented 4 years ago

Thank you @dkosovic for your reply. The problem was that on the router has a second L2TP IPSEC connection(second account) to the same server. In other words you can't have VPN on the router and behind him in the same time .