Date: Wed, 17 Apr 2002 13:41:38 +0200 From: Rickard Borgmäster <doktorn@realworld.nu> To: net@FreeBSD.ORG Subject: Tunneling - No gif interface? Why? Message-ID: <20020417134138.53d68990.doktorn@realworld.nu>
next in thread | raw e-mail | index | archive | help
I need to create a tunnel to an OpenBSD host. This is because the
OpenBSD host is my mailrelay, and my local sendmail (port 25) is
blocked by a firewall out of my control.
But somewhere it seems that the necessary parts are not in the
system....
$ apropos tunnel
gif(4) - generic tunnel interface
gifconfig(8) - configure generic IP tunnel
nos-tun(8) - implement ``nos'' or ``ka9q'' style IP over IP
tunnel stf(4) - 6to4 tunnel interface
tap(4) - Ethernet tunnel software network interface
tun(4) - tunnel software network interface
gif, that's what I want!
from gifconfig(8):
SYNOPSIS
gifconfig interface [af] [physsrc physdest]
[...]
EXAMPLES
If you would like to configure IPv6 over IPv4 (aka IPv6 in IPv4)
tunnel between 10.1.1.1 and 10.2.3.4, you should perform the following
command: # gifconfig gif0 inet 10.1.1.1 10.2.3.4
Nice! So lets rock:
$ gifconfig gif0 130.236.218.63 213.88.128.169
gifconfig: interface gif0 does not exist
Oh...
$ ifconfig -a
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 130.236.218.63 netmask 0xffffff00 broadcast 130.236.218.255
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
vmnet1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 10.0.8.30 netmask 0xfffffff0 broadcast 10.0.8.31
ether 00:bd:da:0d:00:01
But...
$ grep tun /usr/src/sys/i386/conf/KERNEL
pseudo-device tun 2 # Packet tunnel.
pseudo-device gif 2 # IPv6 and IPv4 tunneling
Why don't I have the gif0 interface?
--
Rickard
.--. .--.
.----------------------------------------. | | | | .-.
| Rickard Borgmäster | | | | |/ /
| doktorn@sub.nu | .-^ | .--. | <
| http://doktorn.sub.nu/ | ( o | ( () ) | |\ \
`----------------------------------------' `-----' `--' `--' `--'
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020417134138.53d68990.doktorn>