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I've been tasked to audit in/outbound traffic at our site, but I don't know much about Wireshark. I understand how to set up a capture filter for broad protocols (IP only or tcp, udp, icmp, etc), but how do I set it up so it only captures specific CONTENT types? For example:

-ignore network chatter (dns/icmp/handshakes/etc) -Image files (jpg/gif/png), audio (mp3), video (lots of types), archives (rar/zip/tar) -Pages & sessions -IMs

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If I understand you right you are taking about capturing HTTP connections and inside only specific content types, right? – Robert Jun 13 '12 at 10:58
Yes, that's basically it. – user115360 Jun 13 '12 at 19:29

As far as I know the capture filter does not allow such fine granular filtering options. But you can filter the captured connections afterwards.

But I think for you a HTTP proxy based solution like WebScarab, BurpSuite or Fiddler would be better as they are specialized in HTTP traffic.

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