Creating Multiple Discard Interfaces

[Brooks Davis]

On Wed, Mar 09, 2005 at 04:18:25PM -0800, José María González wrote:
> Hi, 
> 
> I'm trying to create several discard interfaces on 4.9-RELEASE, and I'm 
> having 2 problems. This is what I see (comments started by //):
> 
> # ifconfig -a
> de0: ...
> lo0: ...
> // these are my original interfaces
> 
> # kldload if_disc
> 
> # ifconfig -a
> de0: ...
> lo0: ...
> ds0: flags=8008<LOOPBACK,MULTICAST> mtu 65532
> // surprisingly enough, just loading the if_disc kernel module creates 
> //	the ds0 interface for me. Well, I can live with that. 
> 
> # ifconfig ds0 create
> ifconfig: SIOCIFCREATE: Invalid argument
> # ifconfig disc0 create
> ifconfig: SIOCIFCREATE: Invalid argument
> // This makes sens, as the ds0 interface is already created
> 
> # ifconfig ds1 create
> ifconfig: SIOCIFCREATE: Invalid argument
> # ifconfig disc1 create
> ifconfig: SIOCIFCREATE: Invalid argument
> // 1st problem: How do I create ds1, ds2, etc.?
> 
> 
> // Now I want to get rid of the if_disc module
> # ifconfig ds0 down
> # ifconfig ds0 destroy
> ifconfig: SIOCIFDESTROY: Invalid argument
> #ifconfig disc0 destroy 
> ifconfig: interface disc0 does not exist
> # kldunload -v -i 4
> Unloading if_disc.ko, id=4
> kldunload: can't unload file: Invalid argument
> // 2nd problem: How do I get rid of the if_disc module?

The discard module is not unloadable or clonable before 5.0.  You need
to upgrade to 5.3+ or statically compile in the discard device with an
appropriate count.

-- Brooks

-- 
Any statement of the form "X is the one, true Y" is FALSE.
PGP fingerprint 655D 519C 26A7 82E7 2529  9BF0 5D8E 8BE9 F238 1AD4
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-net/attachments/20050309/cf8c1754/attachment.bin