INETFramework: Models for accurate simulation of IPv4 networks. Supports TCP, UDP, Ethernet, MPLS (with LDP and RSVP-TE signalling), etc. The INET framework is successor of IPSuite
Historical site for the IPv6 Suite with INET Framework: (we don't work with it anymore) extends the INETFramework with the models for accurate simulation of IPv6, Mobile IPv6 networks and (IEEE802.11) WLANs