Date: Thu, 17 Apr 2003 20:50:30 -0400 (EDT) From: Garrett Wollman <wollman@lcs.mit.edu> To: Brooks Davis <brooks@one-eyed-alien.net> Cc: freebsd-stable@freebsd.org Subject: Re: vlan0 on em0 has mtu 1496 Message-ID: <200304180050.h3I0oUbg033275@khavrinen.lcs.mit.edu> In-Reply-To: <20030418001904.GA23983@Odin.AC.HMC.Edu> References: <16031.17219.159093.279782@canoe.velocet.net> <20030418001904.GA23983@Odin.AC.HMC.Edu>
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<<On Thu, 17 Apr 2003 17:19:04 -0700, Brooks Davis <brooks@one-eyed-alien.net> said: > Because the vlan header takes up 4 bytes. With em(4) devices it looks > like fixing that should be a simple matter of raising the real > interface's MTU to 1504. Actually, the parent interface's MTU should not be touched. The link-layer header length is what needs to be increased. -GAWollman
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