How to limit one connection per user for L2TP/IPSec using OpenSwan

ipsecopenswanvpn

I've successfully set up a VPN server with openswan, pppd, and xl2tpd on Ubuntu.

Everything works great, but I'm having trouble finding out how to only allow one VPN connection per user listed in the /etc/ppp/chap-secrets file?

Right now a user can have unlimited connections which is worrisome to me as I've shared access to the VPN with some friends but am worried they might keep spreading the username/password.

Best Answer

I think you need uniqueids=yes in ipsec.conf

Related Solutions

Ubuntu – Using Ubuntu Karmic as an L2TP Client for VPN

Good luck.

IPSEC+L2TP is a beast to get working. The last resort first: this guide is fairly exhaustive.

If you're comfortable compiling things and moving libraries around, you can try my NetworkManager plugin which works at least with SonicWall's GroupVPN when set reasonably Windows+Mac compatible.

Extract number of users connected to IPSsec/L2tpd server

One option would be to check the output of netstat. Even something as simple as this should work (it would probably need updating for the exact service names:

netstat -ano | grep poptop | wc -l

Best Answer

Related Solutions

Ubuntu – Using Ubuntu Karmic as an L2TP Client for VPN

Extract number of users connected to IPSsec/L2tpd server

Related Topic