L2TP Client: Linux: Difference between revisions

== Linux / xl2tpd ==▼

<ol>▼

<li>Ensure the following kernel options are set or the corresponding modules are available:</li>▼

<ol>▼

<li><code>CONFIG_PPPOL2TP</code>▼

<li><code>CONFIG_L2TP</code>▼

</ol>▼

<li>Install xl2tpd and pppd on your Linux router.</li>▼

<li>Edit <code>/etc/xl2tpd/xl2tpd.conf</code> to contain the following:<br />▼

<code>[lac aaisp]<br />▼

lns = l2tp.aaisp.net.uk<br />▼

require authentication = no<br />▼

pppoptfile = /etc/ppp/options.aaisp</code></li>▼

<li>Create <code>/etc/ppp/options.aaisp</code> containing the following (obviously change the name and password to match your L2TP login details):<br />▼

<code>+ipv6<br />▼

ipv6cp-use-ipaddr<br />▼

name xyz@a.X<br />▼

password Your_xyz@A.X_password<br />▼

noauth</code></li>▼

<li>Create the xl2tpd control file:<br />▼

<code>mkdir -p /var/run/xl2tpd<br />▼

touch /var/run/xl2tpd/l2tp-control</code></li>▼

<li>Start the xl2tpd service (for systemd, use service command for older RC systems):<br />▼

<code>systemctl start xl2tpd</code></li>▼

<li>Tell the daemon to connect to aaisp:<br />▼

<code>echo "c aaisp" > /var/run/xl2tpd/l2tp-control</code></li>▼

</ol>▼

This should give you a new PPP device which encapsulates the L2TP connection.▼

== Troubleshooting ==▼

Logs are written /var/log/daemon.log▼

If you see "No such tunnel", you might want to try restarting the daemon▼