From 9c064b53323b5de28da43755e7cbcde788e46588 Mon Sep 17 00:00:00 2001 From: James Chapman Date: Tue, 26 Mar 2013 06:49:23 +0000 Subject: [PATCH] iproute2: update ip-l2tp man page Add documentation about the new l2spec_type parameter for "ip l2tp add session". Signed-off-by: James Chapman --- man/man8/ip-l2tp.8 | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/man/man8/ip-l2tp.8 b/man/man8/ip-l2tp.8 index 2df7ce25..463878f8 100644 --- a/man/man8/ip-l2tp.8 +++ b/man/man8/ip-l2tp.8 @@ -52,6 +52,8 @@ ip-l2tp - L2TPv3 static unmanaged tunnel configuration .IR HEXSTR .RB " ]" .br +.RB "[ " l2spec_type " { " none " | " default " } ]" +.br .RB "[ " offset .IR OFFSET .RB " ] [ " peer_offset @@ -239,6 +241,12 @@ e.g. 014d3636deadbeef. The value must match the cookie value set at the peer. It tells the local system what cookie value to expect to find in received L2TP packets. Default is to use no cookie. .TP +.BI l2spec_type " L2SPECTYPE" +set the layer2specific header type of the session. +.br +Valid values are: +.BR none ", " udp "." +.TP .BI offset " OFFSET" sets the byte offset from the L2TP header where user data starts in transmitted L2TP data packets. This is hardly ever used. If set, the @@ -368,6 +376,12 @@ tunnels. Hello messages are used by L2TP clients and servers to detect link failures in order to automate tearing down and reestablishing dynamic tunnels. If a non-Linux peer supports Hello messages in unmanaged tunnels, it must be turned off to interoperate with Linux. +.PP +Linux defaults to use the Default Layer2SpecificHeader type as defined +in the L2TPv3 protocol specification, RFC3931. This setting must be +consistent with that configured at the peer. Some vendor +implementations (e.g. Cisco) default to use a Layer2SpecificHeader +type of None. .SH SEE ALSO .br .BR ip (8)