increasing the ethernet MTU greater than 1500 (1502)

[fooler]

----- Original Message ----- 
From: "kamal kc" <kamal_ckk at yahoo.com>
To: "freebsd" <freebsd-net at freebsd.org>
Sent: Friday, January 06, 2006 3:18 PM
Subject: increasing the ethernet MTU greater than 1500 (1502)


> i don't want to fragment the packet as i think
> that is too much overhead for 2 bytes. rather i
> want to increase the mtu.

why increase the mtu when you can decrease it? one good example is the 
PPPoE... default mtu size of pppoe is 1492 because of the 6 bytes pppoe 
header and 2 bytes ppp protocol id to fit into the default 1500 mtu of 
ethernet.... therefore you set your mtu to 1498 to fit your 2 bytes extra 
header :-> in that way you are safe from any violation of rfcs...

fooler.