IPv6IP TUNNELLING WITH REMOTE ACCESS USING SSH
The 32 bit Ipv4 address space is exhausted and therefore IPv6 is proposed. The major feature of IPv6 is the security that it provides. However we have networks which use IPv4 and IPv6 protocols. So there is a requirement to introduce migration strategies because both the protocols are not compatible. This paper introduces mechanisms for IPv6 tunnelling and remote access. Tunnelling is a technique in which IPv6 packets are encapsulated inside an IPv4 packet by using a tunnel in Open Shortest Path First (OSPF) routing protocol or internet protocol (IP) network. Generally the IPv4 protocol uses the OSPF version 2 protocols and the IPv6 uses the Version 3. When an application requests for remote hosts access, the secure shell network protocol is used for encrypting messages. In this paper the secure shell encryption is used with tunnelling technique to implement a secure migration between the IPV4 and IPv6 network. The performance of the proposed technique is evaluated using Cisco packet tracer. The obtained results show that the proposed method improves security and provides efficient handling of remote host.