nanog mailing list archives

Re: PCAP Sanitization Tool


From: Steven Bellovin <smb () cs columbia edu>
Date: Thu, 17 Jun 2010 06:49:55 -0700


On Jun 17, 2010, at 6:46 51AM, Valdis.Kletnieks () vt edu wrote:

On Wed, 16 Jun 2010 18:37:01 PDT, Steven Bellovin said:
What's your threat model?  In general, proper anonymization of packet
trace data is very hard.

I'll go out on a limb and point out that a large chunk of the difficulty is
because every protocol has had to invent its own hack-arounds for working
across a NAT. The resulting lack of standardization making things like
Wireshark protocol examinations and sanitizing capture data is one of the less
well-known reasons why NATs are evil.

My complaints are at a deeper level -- even without that, it's really hard.

                --Steve Bellovin, http://www.cs.columbia.edu/~smb







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