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size of ethernet frame?

Posted on 2004-09-21
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Last Modified: 2013-11-13
I see that the MTU of my ethernet interface is 1500 bytes. Yet when I capture traffic, it's showing up as 1514 bytes.  I can account for 1500 bytes (1460 bytes of application data, plus ip header and tcp header).  Where are the 14 bytes showing up from?
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Question by:dissolved
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Expert Comment

by:Lee W, MVP
ID: 12119331
According to this:

http://www.geocities.com/SiliconValley/Vista/8672/network/ethernet.html

The MAC header is 14 bytes - could that be what you are seeing?
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Lee W, MVP earned 2000 total points
ID: 12119335
Probably the MAC header - especially after seeing this:
http://www.firewall.cx/ethernet-frames-ethernet-ii.php
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Author Comment

by:dissolved
ID: 12119511
That has to be it.
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