* [Bridge] no wireless interfaces?
@ 2011-04-29 16:33 Joe Harvell
2011-04-30 3:26 ` Joel Wiramu Pauling
0 siblings, 1 reply; 4+ messages in thread
From: Joe Harvell @ 2011-04-29 16:33 UTC (permalink / raw)
To: Bridge
I tried to bridge a wireless interface to a wired Ethernet interface,
and it failed with "Operation not supported."
Looking at the kernel code, it seems like this is intentional. I
noticed the following in br_add_if:
/* No bridging devices that dislike that (e.g. wireless) */
if (dev->priv_flags & IFF_DONT_BRIDGE)
return -EOPNOTSUPP;
I'm curious to know why this is not supported.
---
Joe
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bridge] no wireless interfaces?
@ 2011-04-29 16:36 jharvell+lists.bridge
2011-04-29 16:48 ` Stephen Hemminger
0 siblings, 1 reply; 4+ messages in thread
From: jharvell+lists.bridge @ 2011-04-29 16:36 UTC (permalink / raw)
To: Bridge@lists.linux-foundation.org
I tried to bridge a wireless interface to a wired Ethernet interface,
and it failed with "Operation not supported."
Looking at the kernel code, it seems like this is intentional. I
noticed the following in br_add_if:
/* No bridging devices that dislike that (e.g. wireless) */
if (dev->priv_flags & IFF_DONT_BRIDGE)
return -EOPNOTSUPP;
I'm curious to know why this is not supported.
--
---
Joe
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bridge] no wireless interfaces?
2011-04-29 16:36 jharvell+lists.bridge
@ 2011-04-29 16:48 ` Stephen Hemminger
0 siblings, 0 replies; 4+ messages in thread
From: Stephen Hemminger @ 2011-04-29 16:48 UTC (permalink / raw)
To: jharvell+lists.bridge@dogpad.net; +Cc: Bridge@lists.linux-foundation.org
On Fri, 29 Apr 2011 11:36:28 -0500
"jharvell+lists.bridge@dogpad.net" <jharvell+lists.bridge@dogpad.net> wrote:
> I tried to bridge a wireless interface to a wired Ethernet interface,
> and it failed with "Operation not supported."
>
> Looking at the kernel code, it seems like this is intentional. I
> noticed the following in br_add_if:
>
> /* No bridging devices that dislike that (e.g. wireless) */
> if (dev->priv_flags & IFF_DONT_BRIDGE)
> return -EOPNOTSUPP;
>
> I'm curious to know why this is not supported.
See discussion on netdev. Basically without some form of MAC spoofing
(NAT at level 2); it is not possible to bridge in station mode.
--
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bridge] no wireless interfaces?
2011-04-29 16:33 [Bridge] no wireless interfaces? Joe Harvell
@ 2011-04-30 3:26 ` Joel Wiramu Pauling
0 siblings, 0 replies; 4+ messages in thread
From: Joel Wiramu Pauling @ 2011-04-30 3:26 UTC (permalink / raw)
To: Joe Harvell; +Cc: Bridge
Because 802.11a/b/g/n does odd things with mac headers which make
bridging them sometimes not work as expected.
On 30 April 2011 04:33, Joe Harvell <joe.harvell@tektronix.com> wrote:
> I tried to bridge a wireless interface to a wired Ethernet interface,
> and it failed with "Operation not supported."
>
> Looking at the kernel code, it seems like this is intentional. I
> noticed the following in br_add_if:
>
> /* No bridging devices that dislike that (e.g. wireless) */
> if (dev->priv_flags & IFF_DONT_BRIDGE)
> return -EOPNOTSUPP;
>
> I'm curious to know why this is not supported.
>
> ---
> Joe
>
> _______________________________________________
> Bridge mailing list
> Bridge@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/bridge
>
^ permalink raw reply [flat|nested] 4+ messages in thread
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2011-04-29 16:33 [Bridge] no wireless interfaces? Joe Harvell
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2011-04-29 16:48 ` Stephen Hemminger
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