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[Openvpn-users] Re:TOT: tun vs. ethertap ? was: tun device on 2.6?


  • Subject: [Openvpn-users] Re:TOT: tun vs. ethertap ? was: tun device on 2.6?
  • From: "Renato Salles" <rsalles@xxxxxxxxxxxxxxxxxxxx>
  • Date: Thu, 4 Mar 2004 13:10:12 -0300 (BRT)
  • Importance: Normal

Hi, JP M,


JP M disse:
> Hi,
> I am sort of following up expecting someone can bring
> me light on the way tun device creation is handled in
> recent (debian ?) kernels.
> **Obviously this is not an OpenVPN issue**
>
> I use the debian network configuration scheme in
> /etc/network : ./interfaces, ./pre-up.d, ...
>
> Some time ago I was using the ethertap module to have
> tun/tap capability. At that time I was able to write
> in the ./interfaces file something like:
>
> auto  tap0
> iface tap0 static
>       address X.X.X.X
>       ...
>
> And starting the network would make tap0 come alive.
>
> Since I moved to the tun module, this is not true
> anymore in my experience. My current turnaround is
> call OpenVPN for rescue adding stanzas like:
>
>       ...
>       pre-up /sbin/run_openvpns_mktun.sh tap0
>       post-down /sbin/run_openvpns_deltun.sh tap0
>
> I am using tap devices for running apache ip-based
> virtual hosts (and for openvpn of course).

Well, I use to manage some VirtualHost entries binding the VirtualHost ip
number to an alias, as eth0:0, etho:1, eth0:2 ...
As in:
ifconfig eth0 netmask 255.255.255.0 192.168.10.1
ifconfig eth0:0 netmask 255.255.255.0 192.168.10.2
...

> If it is totally sick to use tun/tap devices outside
> openvpn, uml and the like, just let me know :-)
>
> --JP
>
Note also that all this stuff is handled by config files at boot time.

HTH,

RSalles

-- 
"A well-written program is its own heaven; a poorly-written program is its
own hell."
TAO of Programming - Book 4

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