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Date: Thu, 17 Apr 2003 17:19:04 -0700
From: Brooks Davis <brooks@one-eyed-alien.net>
To: David Gilbert <dgilbert@velocet.ca>
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Subject: Re: vlan0 on em0 has mtu 1496
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On Thu, Apr 17, 2003 at 08:13:55PM -0400, David Gilbert wrote:
> Why does a vlan created against em0 have a mtu of 1496.

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.

-- Brooks

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