Re: How to disable software TCP checksumming?

[Bsdguru]

This thread is baffling. The bottom line is that you cant trust data coming 
into your machine, and you have to checksum it.  The link level check only 
verifies that what was sent by the last forwarding point is the same as what 
you got, but in NO WAY implies that all of the data is valid.  A link level 
checksum pass is a necessary, but not a sufficient condition for the data 
being acceptable. There are scads of reasons that it could be bad. Disabling 
checksumming is a kludge that you may chose to do, but its never the right 
thing to do.

bryan

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