configuring mtu size in 2.2.x

[Paul Kronenwetter]

That's bizarre.   On my laptop and a 3Com PCMCIA NIC I was able to paste 
your command and received no errors.  The messages file was also clean.

It may be a limitation in the driver (or the driver is reflecting a 
hardware limitation) about the MTU size.  But that's just speculation.

Good luck!
-Paul

Albert Max Lai wrote:
> 
> This isn't specifically a tulip problem, but I thought that I'd ask
> here after failing to get a solution on either the linux-kernel or
> linux-networking lists.
> 
> I am trying to configure my MTU size to a lower size. So, this is what
> I do:
> 
> 
> # /sbin/ifconfig eth0 mtu 1200
> SIOCSIFMTU: Invalid argument
> 
> Unless I'm missing something, this looks fine to me.
> 
> In the strace, I get this at the bottom:
> ioctl(6, SIOCSIFMTU, 0xbffff8b8)        = -1 EINVAL (Invalid argument)
> write(2, "SIOCSIFMTU: Invalid argument\n", 29SIOCSIFMTU: Invalid argument
> ) = 29
> _exit(1)                                = ?
> 
> >From what I can tell, this problem does not exist in 2.3.x. The only
> responses to this question so far have been "me too." If anyone can
> figure out why this is failing, that would be great. Thanks in
> advance.
> 
> -- 
> Albert Lai 
> http://www.columbia.edu/~aml61
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> 


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