configuring mtu size in 2.2.x

[Albert Max Lai]

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 <amlai@columbia.edu>
http://www.columbia.edu/~aml61
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