diff options
| author | James Chapman <jchapman@katalix.com> | 2010-04-02 06:18:49 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-03 14:56:03 -0700 |
| commit | f7faffa3ff8ef6ae712ef16312b8a2aa7a1c95fe (patch) | |
| tree | 2b9d1bd7ed08767a02cd282a876970b34241f7af /net/l2tp/Kconfig | |
| parent | 9345471bca96d00d4196b3dcc4a5625f1bfae247 (diff) | |
l2tp: Add L2TPv3 protocol support
The L2TPv3 protocol changes the layout of the L2TP packet
header. Tunnel and session ids change from 16-bit to 32-bit values,
data sequence numbers change from 16-bit to 24-bit values and PPP-specific
fields are moved into protocol-specific subheaders.
Although this patch introduces L2TPv3 protocol support, there are no
userspace interfaces to create L2TPv3 sessions yet.
Signed-off-by: James Chapman <jchapman@katalix.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp/Kconfig')
| -rw-r--r-- | net/l2tp/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/l2tp/Kconfig b/net/l2tp/Kconfig index ec88c5cdc397..d60758d60478 100644 --- a/net/l2tp/Kconfig +++ b/net/l2tp/Kconfig @@ -19,6 +19,10 @@ menuconfig L2TP connections. L2TP is also used as a VPN protocol, popular with home workers to connect to their offices. + L2TPv3 allows other protocols as well as PPP to be carried + over L2TP tunnels. L2TPv3 is defined in RFC 3931 + <http://www.ietf.org/rfc/rfc3931.txt>. + The kernel component handles only L2TP data packets: a userland daemon handles L2TP the control protocol (tunnel and session setup). One such daemon is OpenL2TP @@ -26,3 +30,24 @@ menuconfig L2TP If you don't need L2TP, say N. To compile all L2TP code as modules, choose M here. + +config L2TP_V3 + bool "L2TPv3 support (EXPERIMENTAL)" + depends on EXPERIMENTAL && L2TP + help + Layer Two Tunneling Protocol Version 3 + + From RFC 3931 <http://www.ietf.org/rfc/rfc3931.txt>. + + The Layer Two Tunneling Protocol (L2TP) provides a dynamic + mechanism for tunneling Layer 2 (L2) "circuits" across a + packet-oriented data network (e.g., over IP). L2TP, as + originally defined in RFC 2661, is a standard method for + tunneling Point-to-Point Protocol (PPP) [RFC1661] sessions. + L2TP has since been adopted for tunneling a number of other + L2 protocols, including ATM, Frame Relay, HDLC and even raw + ethernet frames. + + If you are connecting to L2TPv3 equipment, or you want to + tunnel raw ethernet frames using L2TP, say Y here. If + unsure, say N. |