It seems that FreeBSD-7.0 does not use the available MTU

Eygene Ryabinkin rea-fbsd at codelabs.ru
Tue Oct 28 07:53:17 UTC 2008


Eitan, good day.

Mon, Oct 27, 2008 at 11:53:26PM +0200, Eitan Shefi wrote:
> I am using 2 hosts with FreeBSD-7.0 connected directly.
> When I change the MTU to a value greater then 1500, for example 3000,
> and then send "ping" with message size 2500, from one host to the other,
> the other host gets more then one ICMP packet, even thaw the message
> that was send is match smaller then the MTU.
>  
> I tried to run this test using a different NIC, but I got the same
> behavior.
>  
> I run:
> 1.  On both hosts:
>      ifconfig mtnic0 mtu 3000

And what does 'ifconfig mtnic0 | grep mtu' says after this command?
-- 
Eygene
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