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Date:      Thu, 12 Jul 2007 15:09:16 -0400
From:      Stephen Clark <Stephen.Clark@seclark.us>
To:        freebsd-net@freebsd.org
Subject:   6.2 mtu now limits size of incomming packet
Message-ID:  <46967C5C.5040505@seclark.us>

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Hello,

Did something change in 6.2? If my mtu size on rl0 is 1280 it won't
accept a larger incomming packet.

kernel: rl0: discard oversize frame (ether type 800 flags 3 len 1514 > max
 1294)

I don't think it worked this way in the past.

Won't this affect pmtud?

man page for ifconfig says mtu limits size of "transmission" not reception.

     "mtu n   Set the maximum transmission unit of the interface to n, 
default
             is interface specific."

TIA,
Steve

-- 

"They that give up essential liberty to obtain temporary safety, 
deserve neither liberty nor safety."  (Ben Franklin)

"The course of history shows that as a government grows, liberty 
decreases."  (Thomas Jefferson)






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