Date: Wed, 17 Apr 2002 13:49:03 +0200 From: John Angelmo <john@veidit.net> To: =?ISO-8859-1?Q?Rickard_Borgm=E4ster?= <doktorn@realworld.nu> Cc: net@FreeBSD.ORG Subject: Re: Tunneling - No gif interface? Why? Message-ID: <3CBD612F.3030801@veidit.net> References: <20020417134138.53d68990.doktorn@realworld.nu>
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Rickard Borgmäster wrote: > 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? > > Is options INET6 added to your kernel config file? /John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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