6.2 mtu now limits size of incomming packet

[Stephen Clark]

Wes Peters wrote:

>On 7/16/07, Sten Daniel Soersdal <netslists at gmail.com> wrote:
>  
>
>>I guess it wouldn't hurt for the operating system to accept larger
>>frames, as long as only the correctly sized frames are transmitted.
>>
>>There are alot of people, including myself, that assume a host can't
>>receive a frame that is larger than MTU. Perhaps it should be noted in
>>the man pages about this behavior in addition?
>>    
>>
>
>I've bumped into this issue several times before.  A look at the
>ifconfig man page will show a way to set the interface mtu, but not
>the mru.  FreeBSD has always used the mtu as the mru for the
>  
>
This is not the case in FreeBSD 4.9 - It would gladly accept packets on 
an interface
that were larger than the MTU for that interface.

>interface, which is arguably wrong.  In every case I've encountered
>this problem, the user had truly mis-configured some part of the
>network and correct configuration solved the problem, so I've never
>been fully convinced it needed to be fixed.
>
>
>  
>


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