Building IPsec VPN in IPv6 Based on Openswan

Abstract

This paper researches and analyses feature and advantages of IPsec VPN, points out its problem and disadvantages in the IPv4. After analyzing IPv6 network and its data package in deep, this paper studies the feasibility of implementation of IPsec VPN in IPv6 network. Then it elaborates frame and modules which supports IPv6 of Openswan. Via recompiling the 2.6 kernel, adding the NETKEY module to kernel, installing Openswan and configuring it, a IPsec VPN which can runs in pure IPv6 network has been built. Finally, function and performance testing is done.