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About a year ago, I wrote a Powershell packet sniffer script that worked pretty well. I wanted to add IPv6 support to it, so I spent a good chunk of the last day learning the protocol and trying to figure out how to do it in Powershell/.NET. Unfortunately, what I found out is that it isn’t possible.
I basically had everything working, except for some reason I wasn’t receiving any IPv6 headers — only the payload. After lots of research (er..googling, and experimentation), I discovered that there is a design limitation in the Windows implementation of IPv6 that prevents incoming IPv6 headers from being passed to a raw socket. I also tried to get outgoing headers, but that wouldn’t work for me either. Without the header, it’s very difficult to figure out what protocol the payload is, so for now, I think I’m going to have to abandon this effort.
All is not lost though. I’ve made some other improvements to the original packet capture script and will post the new version soon.
- Robbie
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