[ECOS] 4-byte crc packet with freebsd stack

Andrew Lunn andrew@lunn.ch
Wed Feb 16 14:05:00 GMT 2005


On Wed, Feb 16, 2005 at 02:58:10PM +0100, Stefan Rosinger wrote:
> Hi!
> 
> Does the FreeBSD stack append a 32 bit CRC packet at the end of every tcp/ip
> package?

There is no reason to do this.

You underlying network device will be added a CRC at the end, ie the
Ethernet CRC. Normally the hardware does this, but in a few cases this
is done in software as part of the device driver.

        Andrew

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