LP on .NET

June 11, 2009

Wireshark

Filed under: Networking,technology — Larry Parker @ 10:48 pm

If you need a good packet sniffer, Wireshark is a very handy utility, and the price is right (free).  You can download it here.

I used it all day at work today to look at packets going across the wire sent from my WCF code.  It was especially useful to verify that SSL transport security was indeed activated.  I could see the Client Hello and Server Hello handshake in action and also verify that the packets were encrypted (whereas prior to using SSL I would see the plain-text SOAP messages).

I’m really impressed with how Wireshark displays the packets and breaks them up into the various Internet Protocol Suite components (e.g. Ethernet Frame II, IP, TCP, etc.).  It’s a great learning tool.

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