Network Pseudo-device question

Hi all.

I'm trying to develop a virtual network device mapped over a real network
device, something similar to the brigde interface.

I managed to get the packets transmitted. However I don't know how I can
received the packets, that is, redirect them from the real network device
to my new one.

Any clue?

In comp.os.linux.development.system George <(E-Mail Removed)> wrote:

| I'm trying to develop a virtual network device mapped over a real network
| device, something similar to the brigde interface.

Sounds more like VLAN.


| I managed to get the packets transmitted. However I don't know how I can
| received the packets, that is, redirect them from the real network device
| to my new one.
|
| Any clue?

Some kind of logical layering construct as in a VLAN?

--
-----------------------------------------------------------------------------
| Phil Howard KA9WGN | http://linuxhomepage.com/ http://ham.org/ |
| (first name) at ipal.net | http://phil.ipal.org/ http://ka9wgn.ham.org/ |
-----------------------------------------------------------------------------

phil-news-(E-Mail Removed) wrote in news:(E-Mail Removed):

>| I managed to get the packets transmitted. However I don't know how I
>| can received the packets, that is, redirect them from the real
>| network device to my new one.
>|
>| Any clue?
>
> Some kind of logical layering construct as in a VLAN?
>

Yes, more or less that. Any clue?

phil-news-(E-Mail Removed) wrote in news:(E-Mail Removed):

>| I managed to get the packets transmitted. However I don't know how I
>| can received the packets, that is, redirect them from the real
>| network device to my new one.
>|
>| Any clue?
>
> Some kind of logical layering construct as in a VLAN?
>

Yes, more or less that. However I don't want to define a new packet type.
It is more like a brigde. Any clue?

In comp.os.linux.development.system George <(E-Mail Removed)> wrote:
| phil-news-(E-Mail Removed) wrote in news:(E-Mail Removed):
|
|>| I managed to get the packets transmitted. However I don't know how I
|>| can received the packets, that is, redirect them from the real
|>| network device to my new one.
|>|
|>| Any clue?
|>
|> Some kind of logical layering construct as in a VLAN?
|>
|
| Yes, more or less that. Any clue?

I remember seeing a driver a while back that implemented some compatibility
with Cisco's VLAN. Maybe that is still around.

--
-----------------------------------------------------------------------------
| Phil Howard KA9WGN | http://linuxhomepage.com/ http://ham.org/ |
| (first name) at ipal.net | http://phil.ipal.org/ http://ka9wgn.ham.org/ |
-----------------------------------------------------------------------------

George wrote:
> phil-news-(E-Mail Removed) wrote in news:(E-Mail Removed):
>
>
>>| I managed to get the packets transmitted. However I don't know how I
>>| can received the packets, that is, redirect them from the real
>>| network device to my new one.
>>|
>>| Any clue?
>>
>>Some kind of logical layering construct as in a VLAN?
>>
>
>
> Yes, more or less that. However I don't want to define a new packet type.
> It is more like a brigde. Any clue?


If you can route the interesting packets to a separate interface,
a TUN or TAP driver could be the solution.

Both are kind of adapter pieces between a network interface
and a character device. The difference is that a TUN driver
works at the IP layer and a TAP driver works at the data link
layer (e.g. Ethernet).

HTH

--

Tauno Voipio
tauno voipio (at) iki fi