tcpdump mailing list archives

Re: Should the default snapshot length in tcpdump be 65535?


From: Guy Harris <guy () alum mit edu>
Date: Thu, 5 Mar 2009 01:20:57 -0800


On Feb 20, 2009, at 7:08 PM, Guy Harris wrote:

The "tcp" in "tcpdump" is a bit old - people use it for doing more than just looking at TCP headers these days - and it sounds as if the problem Torsten Krah had tring to decrypt ipsec traffic was due to the packets being cut short by a snapshot length.

Would it make sense to have tcpdump default to the maximum snapshot length, rather than 68 (without IPv6 support) or 96 (with IPv6 support)?

I've checked in a change to make the default snapshot length 65535.
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