In absence of a library that easily parses network packages from recorded raw data (not sockets), I have taken the network stack from the House project and put it into a separate package, network-house. http://hackage.haskell.org/package/network-house This library allows you to parse Ethernet, TCP, UDP, IPv4, IPv6, ICMP, DHCP and TFTP packages from raw data (e.g. recorded traffic). I have left the source code almost unmodified (apart from the relocation of one module and a few necessary LANGUAGE pragmas). As House development itself seems dormant, I invite you to collaborate on the network stack on https://github.com/nh2/network-house. If you would like to contribute, these are the things it definitely needs: * A ByteString interface (it currently works on UArrays). If you know what the most performant way is to convert a UArray to a ByteString, please let me know. * Some examples how to use it * Haddock documentation and code cleanup * Somebody should ask the original authors if they would like to relax the license from GPL to BSD. Cheers Niklas