tap1 problem

[Gillian]

Dear Guus,

Thanks for your help.  I actually found out the answer myself by scouring
the internet. This is what I did:

Compile ethertap device as a module in the Linux 2.2.18 kernel.

Edit the  /etc/modules.conf   file and add the following lines:

alias tap0 ethertap
options tap0 -o tap0 unit=0
alias tap1 ethertap
options tap1 -o tap1 unit=1
alias tap2 ethertap
options tap2 -o tap2 unit=2


Now that the module configurations are set up, you can test them by:

/sbin/modprobe tap1       -->  makes the tap1 interface available
/sbin/ifconfig -a              -->  shows the available interfaces

Once available, they can be used with tinc  :)

Anyway, maybe that will help someone else..

Regards,
Gillian.


-----Original Message-----
From:	Guus Sliepen [SMTP:guus at warande3094.warande.uu.nl]
Sent:	09 May 2001 10:06
To:	tinc at nl.linux.org
Subject:	Re: tap1 problem

On Tue, May 08, 2001 at 04:25:50PM +0100, Gillian wrote:

> I've recompiled the kernel with the ethertap device as a module <M>.
> I still cannot get the tap1 device working. Could someone please
> explain to me in detail what I need to do...  I've already tried
> 
> 	/sbin/insmod ethertap
> 
> and that gives:
> 
> 	Using /lib/modules/2.2.18/net/ethertap.o
> 	insmod: a module named ethertap already exists

It is really awkward, but you can either do it by setting up some
aliases/options in /etc/modules.conf, but I forgot which, or you can do it
manually:

insmod -x -o tap0 ethertap
insmod -x -o tap1 ethertap
...
insmod -x -o tapN ethertap

BTW, the tun/tap driver in the 2.4 kernels do not have this problem anymore,
there's a single device file which can be opened multiple times to get
multiple tap devices.

-------------------------------------------
Met vriendelijke groet / with kind regards,
  Guus Sliepen <guus at sliepen.warande.net>
-------------------------------------------
See also: http://tinc.nl.linux.org/
          http://www.kernelbench.org/
-------------------------------------------
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