1. Requirements
- * You must have libcli installed to enable the command-line
- interface. You can get it from http://sourceforge.net/projects/libcli.
- If you don't have it, command-line support will not be compiled in.
+ * libcli 1.8.0 or greater
+ You can get it from http://sourceforge.net/projects/libcli.
- * A kernel with iptables support
-
- * If you want to use throttling, you must have a kernel and a tc (iproute) which supports HTB.
+ * A kernel with iptables support.
2. Compile
-./configure --prefix=/usr --sysconfdir=/etc/l2tpns
-make
+ * make
3. Install
- * make install. This does:
- * Install the binaries into /usr/bin (l2tpns, cluster_master and nsctl)
- * Create config dir /etc/l2tpns and create default config files
- * Ensures that /dev/net/tun exists
+ * make install. This process:
+ - Installs the binaries into /usr/sbin (l2tpns and nsctl).
+ - Creates the config dir /etc/l2tpns installs default config files.
+ - Ensures that /dev/net/tun exists.
- * Modify config file. You probably need to change most of the config options.
+ * Modify config file. You probably need to change most of the config
+ options.
- * Set up basic firewall rules. This should be done in an init script.
+ * Set up basic firewall rules. The l2tpns process listens on a bunch of
+ ports:
- iptables -t nat -N l2tpns
- iptables -t nat -A PREROUTING -j l2tpns
- iptables -t mangle -N l2tpns
- iptables -t mangle -A PREROUTING -j l2tpns
+ 23/tcp command line interface
+ 1701/udp l2tp (on bind_address)
+ 1702/udp control port (nsctl)
+ 32792/udp clustering messages
- * Set up walled garden firewall rules. This should be done in an init
- script. This is not required unless you are using the garden plugin.
+ * If you are using the garden plugin, setup the walled garden firewall
+ rules. These should be in /etc/l2tpns/build-garden, which is run by the
+ plugin after creating/flushing the "garden" nat table.
- iptables -t nat -N garden >/dev/null 2>&1
- iptables -t nat -F garden
iptables -t nat -A garden -p tcp -m tcp --dport 25 -j DNAT --to 192.168.1.1
iptables -t nat -A garden -p udp -m udp --dport 53 -j DNAT --to 192.168.1.1
iptables -t nat -A garden -p tcp -m tcp --dport 53 -j DNAT --to 192.168.1.1
iptables -t nat -A garden -p icmp -j ACCEPT
iptables -t nat -A garden -j DROP
- * Set up IP address pools in /etc/l2tpns/ip_pool
+ * Set up IP address pools in /etc/l2tpns/ip_pool
- * Set up clustering
+ * Set up routing.
+ - If you are running a single instance, you can simply statically route
+ the IP pools to the bind_address (l2tpns will send a gratuitous arp).
- * Run cluster_master on a separate machine
- * Set the "cluster master" and "bind address" parameters in /etc/l2tpns/l2tpns.cfg
+ - For a cluster, configure the members as BGP neighbours on your router
+ and configure multi-path load-balancing (on Cisco use "maximum-paths").
- * Make l2tpns run on startup
+ * Make l2tpns run on startup. In a clustered environment running from
+ inittab is recomended:
- * Test it out
+ l2tp:2345:respawn:/home/l2tpns/src/l2tpns >/dev/null 2>&1
+ * Test it out.
-This software is quite stable and is being used in a production
-environment at a quite large ISP. However, you may have problems
-setting it up, and if so, I would appreciate it if you would file
-useful bug reports on the Source Forge page:
+This software is quite stable and is being used in a production environment at
+a quite large ISP. However, you may have problems setting it up, and if so, I
+would appreciate it if you would file useful bug reports on the Source Forge
+page:
http://sourceforge.net/projects/l2tpns/
projects / l2tpns.git / blobdiff