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Remove superfluous macros and whitespace.
Some wording improvements.
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wiz 2017-02-16 14:00:26 +00:00
parent d0da83b571
commit ae4956b2f3
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share/man/man4/l2tp.4
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@ -1,4 +1,4 @@
.\" $NetBSD: l2tp.4,v 1.1 2017/02/16 08:32:21 knakahara Exp $
.\" $NetBSD: l2tp.4,v 1.2 2017/02/16 14:00:26 wiz Exp $
.\"
.\" Copyright (C) 2017 Internet Initiative Japan Inc.
.\" All rights reserved.
@ -38,34 +38,37 @@
.Sh DESCRIPTION
The
.Nm
interface is a version 3 of the Layer Two Tunneling Protocol(L2TPv3)
pseudo device. It can tunnel layer 2 protocol traffic over IPv4 or IPv6,
as specified in
interface is a version 3 of the Layer Two Tunneling Protocol (L2TPv3)
pseudo device.
It can tunnel layer 2 protocol traffic over IPv4 or IPv6, as specified in
.Li RFC3931 .
.Pp
L2TPv3 protocol is comprised of two types of messages, control messages
and data messages. Control messages are used in the establishment,
The L2TPv3 protocol is comprised of two types of messages, control messages
and data messages.
Control messages are used in the establishment,
maintenace, and clearing of control connections and sessions.
.Xr l2tp 4
interface can send control messages and data messages, furthermore
The
.Nm
interface can send control messages and data messages; furthermore
the management of control messages is entrusted to userland daemon.
Without management daemon,
.Xr l2tp 4
interface can send data messages by using
Without a management daemon, the
.Nm
interface can send data messages using the
.Xr ifconfig 8
.Cm tunnel
and
.Cm session
subcommands, or
subcommands, or the
.Dv SIOCSIFPHYADDR
and
.Dv SIOCSL2TPSESSION
ioctls. Additionally, it can use cookie specified in
ioctls.
Additionally, it can use cookies specified in
.Li RFC3931
by using
by using the
.Xr ifconfig 8
.Cm cookie
subcommand, or
subcommand, or the
.Dv SIOCSL2TPCOOKIE
ioctl.
.Ss Packet format
@ -80,7 +83,6 @@ Host X--NetBSD A ----------------tunnel---------- NetBSD B------Host E
\\ |
\\ /
+-----Router B--------Router C---------+
.Ed
configuration example without cookies,
.Pp
@ -100,7 +102,6 @@ system A
# ifconfig bridge0 up
.Ed
.Pp
.Ed
On
.Nx
system B
@ -136,7 +137,6 @@ system A
# ifconfig bridge0 up
.Ed
.Pp
.Ed
On
.Nx
system B
@ -153,7 +153,6 @@ system B
# ifconfig wm1 up
# ifconfig bridge0 up
.Ed
.Sh SEE ALSO
.Xr inet 4 ,
.Xr inet6 4 ,
@ -173,6 +172,6 @@ The
device first appeared in
.Nx 8.0 .
.Sh BUGS
Currently,
Currently, the
.Nm
interface support ethernet frame over IPv4 or IPv6 only.
interface supports Ethernet frames over IPv4 or IPv6 only.