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Diffstat (limited to 'sbin/nos-tun/nos-tun.8')
-rw-r--r-- | sbin/nos-tun/nos-tun.8 | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/sbin/nos-tun/nos-tun.8 b/sbin/nos-tun/nos-tun.8 new file mode 100644 index 000000000000..f3af572196cd --- /dev/null +++ b/sbin/nos-tun/nos-tun.8 @@ -0,0 +1,73 @@ +.\" +.\" ---------------------------------------------------------------------------- +.\" "THE BEER-WARE LICENSE" (Revision 42): +.\" <phk@FreeBSD.org> wrote this file. As long as you retain this notice you +.\" can do whatever you want with this stuff. If we meet some day, and you think +.\" this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp +.\" ---------------------------------------------------------------------------- +.\" +.\" $Id$ +.\" +.Dd April 11, 1998 +.Dt NOS-TUN 8 +.Os FreeBSD 3.0 +.Sh NAME +.Nm nos-tun +.Nd Implement ``nos'' or ``ka9q'' style IP over IP tunnel +.Sh SYNOPSIS +.Nm nos-tun +.Fl t +.Ar tunnel +.Fl s +.Ar source +.Fl d +.Ar destination +.Ar target +.Sh DESCRIPTION +.Nm +is used to establish an +.Em nos +style tunnel, (also known as +.Em ka9q +or +.Em IP-IP +tunnel) using a +.Xr tun 4 +kernel interface. +.Pp +.Ar tunnel +is the name of the tunnel device +.Dq /dev/tun0 +for example. +.Pp +.Ar source +and +.Ar destination +are the addresses used on the tunnel device. +If you configure the tunnel against a cisco router, use a netmask of +.Dq 255.255.255.252 +on the cisco. This is because the tunnel is a point-to-point interface +in the FreeBSD end, a concept cisco doesn't really implement. +.Pp +.Ar target +is the address of the remote tunnel device, this must match the source +address set on the remote end. +.Sh EXAMPLES +This end, a FreeBSD box on address 192.168.59.34: +.Bd -literal -offset indent 4m +nos-tun -t /dev/tun0 -s 192.168.61.1 -d 192.168.61.2 192.168.56.45 +.Ed +.Pp +Remote cisco on address 192.168.56.45: +.Bd -literal -offset indent 4m +interface tunnel 0 +ip address 192.168.61.2 255.255.255.252 +tunnel mode nos +tunnel destination 192.168.59.34 +tunnel source 192.168.56.45 +.Ed +.Sh BUGS +We don't allow for setting our source address for multihomed machines. +.Sh AUTHOR +Nickolay N. Dudorov <nnd@itfs.nsk.su> wrote the program, +Poul-Henning Kamp <phk@FreeBSD.org> wrote the man-page. |