Dual Stack Overview - H3C S3610-28P Operation Manual

Operation Manual – IPv6
H3C S3610&S5510 Series Ethernet Switches
Chapter 2 Dual Stack Configuration
When configuring dual stack, go to these sections for information you are interested in:

Dual Stack Overview

Configuring Dual Stack
2.1 Dual Stack Overview
Dual stack is the most direct approach to making IPv6 nodes compatible with IPv4
nodes. The best way for an IPv6 node to be compatible with an IPv4 node is to maintain
a complete IPv4 stack. A network node that supports both IPv4 and IPv6 is called a dual
stack node. A dual stack node configured with an IPv4 address and an IPv6 address
can have both IPv4 and IPv6 packets transmitted.
For an upper layer application supporting both IPv4 and IPv6, either TCP or UDP can
be selected at the transport layer, while IPv6 stack is preferred at the network layer.
Figure 2-1
Figure 2-1 IPv4/IPv6 dual stack in relation to IPv4 stack (on Ethernet)
illustrates the IPv4/IPv6 dual stack in relation to the IPv4 stack.
Chapter 2 Dual Stack Configuration
2-1