Mutliple L2TP IPSEC connections from the same remote public IP + same VPN user

RouterOS General
1

Dear all,

We have the following Miktrotik setup:

  • L2TP with IPSEC VPN endpoint/server
  • Several user accounts are created for the VPN endpoint (user accounts are stored in Miktrotik, no RADIUS).

We just experienced the following issue:

  • When one user tries to connect with the same VPN account on 2 different devices on the same time: the first sessions ends. Is there anyway to edit the max concurrent sessions per user?
  • When a user uses 2 different VPN accounts, but both devices are connected from the same remote public IP: always one session is disconnected at random within +/- 2 minutes.

Is there any setting where I can change this behaviour?

Regards,
Pieter

2

Bump :slight_smile:

3

It is not possible. Use ikev2 in networks where multiple peers are behind the same NAT.

4

Thanks for your reply.

Is this a limitation of IPSEC or a limitation of MIktrotik?