Open-Source Implementations

• Cisco P2PSIP Project (draft-jennings-p2psip-asp)
• Columbia P2PP Project (draft-baset-p2psip-p2pp)
• SIPDHT2 Project (draft-marocco-p2psip-xpp, draft-marocco-p2psip-xpp-pcan)
• SIPDHT Project (draft-bryan-sipping-p2p) (no longer maintained)
• University of Parma Kademlia dSIP Implementation (draft-cirani-p2psip-dsip-dhtkademlia, draft-bryan-p2psip-dsip)
• Huawei's implementation of SEP peer and client protocols (draft-jiang-p2psip-sep, draft-zheng-p2psip-client-protocol)
• P2PNS: A Secure Distributed Name Service for P2PSIP (draft-baumgart-p2psip-p2pns)

Commercial Implementations

• SIPeerior Technologies P2PSIP Core and Endpoint Development Kits (draft-bryan-p2psip-reload, draft-lowekamp-p2psip-reload-security, other supporting drafts)

If you have or know of a P2PSIP implementation (not just general P2P, but something based on a draft or directly related to work in the IETF Working Group on P2PSIP), either open source or commercial, please email David A. Bryan (dbryan at p2psip dot org) and we'll add it to the list.