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l2tpns/docs/src/man/l2tpns.8.md
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docs: man - Fix manpages headers, fix dead links
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% L2TPNS(8) Layer 2 tunneling protocol network server (LNS) % This manual page was written by Jonathan McDowell noodles@earth.li and Fernando Alves (fendo@sameswifi.fr), for the Debian GNU/Linux system (but may be used by others) % January 31, 2021

NAME

l2tpns - Layer 2 tunneling protocol network server (LNS)

SYNOPSIS

l2tpns [-d] [-v] [-c file] [-h hostname]

DESCRIPTION

l2tpns is a daemon for terminating layer 2 tunneling protocol (L2TP: RFC2661) sessions.

l2tpns is a complete L2TP implementation. It supports the LAC, LNS, PPPOE and DHCPv6 server.

Once running, l2tpns may be controlled by telnetting to port 23 on the machine running the daemon and with the nsctl utility.

OPTIONS

  • -d Detach from terminal and fork into the background. By default l2tpns will stay in the foreground.

    .

  • -v Increase verbosity for debugging. Can be used multiple times.

    .

  • -c file

    Specify configuration file.

  • -h hostname

    Force hostname to hostname.

FILES

  • /etc/l2tpns/startup-config

    The default configuration file.

  • /etc/l2tpns/ip_pool

    IP address pool configuration.

  • /etc/l2tpns/users

    Username/password configuration for access to admin interface.

SIGNALS

  • SIGHUP Reload the config from disk and re-open log file.

    .

  • SIGTERM, SIGINT

    Stop process. Tunnels and sessions are not terminated. This signal should be used to stop l2tpns on a cluster node where there are other machines to continue handling traffic.

  • SIGQUIT

    Shut down tunnels and sessions, exit process when complete.

MANAGED RADIUS ATTRIBUTE

  • Ascend-Client-Primary-DNS, Ascend-Client-Secondary-DNS

    Specifies a primary and secondary DNS server address to send to user.

  • Delegated-IPv6-Prefix

    Assign a network address IPv6 prefix to a user by DHCPv6.

  • Framed-IP-Address

    The address to be configured for the user (IPv4 address of the interface ppp).

  • Framed-Route

    provides routing information to be configured for the user.

  • Framed-IPv6-Route

    Has the same action as Delegated-IPv6-Prefix. Delegated-IPv6-Prefix is the correct one to use.

  • Framed-IPv6-Address

    IPv6 address to be assigned to the user by DHCPv6 (IPv6 address of the interface ppp).

  • Idle-Timeout

    disconnects the session if no data for more than Idle-Timeout (in seconds).

  • Session-Timeout

    disconnects the user session when the time Session-Timeout is reached (in seconds).

  • Tunnel-Type, Tunnel-Medium-Type, Tunnel-Server-Endpoint, Tunnel-Password, Tunnel-Assignment-Id

    attributes returned by the Radius of the remote LNS server (LAC functionality).

    example, Radius that return the information of 2 remote LNS server with which must be open a L2TP TUNNEL:

    • Tunnel-Type: 1 = L2TP
    • Tunnel-Medium-Type: 1 = IPv4
    • Tunnel-Password: 1 = "TheSecretL2TP"
    • Tunnel-Server-Endpoint: 1 = "88.xx.xx.x1"
    • Tunnel-Assignment-Id: 1 = "friendisp_lns1"
    • Tunnel-Type: 2 = L2TP
    • Tunnel-Medium-Type: 2 = IPv4
    • Tunnel-Password: 2 = "TheSecretL2TP"
    • Tunnel-Server-Endpoint: 2 = "88.xx.xx.x2"
    • Tunnel-Assignment-Id: 2 = "friendisp_lns2"

SEE ALSO

startup-config(5), nsctl(8)