> > [root@amlai2 amlai]# /sbin/ifconfig eth0 mtu 1200
> > SIOCSIFMTU: Invalid argument
His network card isn't compiled into his kernel, looks like.
> > Anyone have any ideas as to why this might be happening? What kernel
> > options might prevent one from changing the mtu size? Any help with
> > this would be greatly appreciate. Thanks in advance.
>
> I think the reason is the smallest MTU on ethernet is 1500 bytes.
>
> Somebody correct me if im wrong :)
Well,
: nix@loki 129 % /sbin/ifconfig
: eth0 Link encap:Ethernet HWaddr 00:60:08:78:E7:72
: inet addr:192.168.1.16 Bcast:192.168.1.255 Mask:255.255.255.0
: UP BROADCAST RUNNING MULTICAST MTU:576 Metric:1
: RX packets:23035958 errors:0 dropped:0 overruns:0 frame:0
: TX packets:59369139 errors:0 dropped:0 overruns:0 carrier:0
: collisions:600382 txqueuelen:100
: Interrupt:9 Base address:0xd400
looks like you are wrong.
1536 is the default though.
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