Green Computing in WAN Through Intensified Teredo IPv6 Tunneling to Route Multifarious Symmetric NAT

摘要

IPv4-IPv6 transition rolls out numerous challenges to the world of Internet as the Internet is drifting from IPv4 to IPv6. IETF recommends few transition techniques which includes Dual stack, translation and tunneling. By means of tunneling the IPv6 packets over IPv4 UDP, Teredo maintains IPv4/IPv6 Dual stack node in isolated IPv4 networks behindhand Network Address Translation (NAT). However, the proposed tunneling protocol works with the symmetric and asymmetric NAT. In order to make a Teredo support several symmetric NATs along with several asymmetric NAT, we propose Multifarious Sym Teredo, which is an extension of Teredo with a capability of navigating through several symmetric NAT using Graphical Network Simulator 3. The work preserves the Teredo architecture and also offers a backward compatibility with the original Teredo protocol.