TheDirtyBird

Simple question. What is it's purpose?

BSchwarz

This page will explain what it is and what it does.

Basiclly it is the way encrypted connectiions are handled in ip6v.

http://www.microsoft.com/technet/net...6/ipv6faq.mspx

TheDirtyBird

I pulled this question out of the network+ exam prep.

You've just installed two new network servers: one in building A and one in building B. The network operating system you selected supports the IPv6 protocol.

You've loaded and confgured IPv6 on both servers and you want them to communicate with each other. However, the router between these two servers on support the IPv4 protocol.

Given that you don' have a budget to purchase a new router, which IPv4 - IPv6 compatibility strategy could you use to enable communication?

Answer: Tunneling



There are three strategies recommended by the Internet Engineering Task Force (IETF) for configuring IPv6 - IPv4 compatiblity:

1) Dual stack
2) Tunneling
3) 6to4 routing

The dual stack strategy involves loading both protocol stacks at the same time on each host. The 6to4 routing strategy involves configuring special routers that connect IPv4 networks to IPv6 networks. Tunneling involves encapsulating IPv6 packets in IPv4 packets for transmission across an IPv4 network.

Given the scenario in this question, the tunneling strategy would work the best. The dual stack stratey wouldn't allow the two systems to communicatie using IPv6. The 6to4 routing option would require purchasing additional equipment.