User's Manual

Table Of Contents
Chapter 5 WAN Setup 30
IPv6 Rapid Deployment
Use IPv6 Rapid Deployment (6rd) when the local network uses IPv6 and the ISP has an IPv4 network.
W
hen the Device has an IPv4 WAN address and you set IPv6/IPv4 Dual Stack to IPv4, you can
enable 6rd to encapsulate IPv6 packets in IPv4 packets to cross the ISP’s IPv4 network.
The Device generates a global IPv6 prefix from its
IPv4 WAN address and tunnels IPv6 traffic to the
ISP’s Border Relay router (BR in the figure) to connect to the native IPv6 Internet. The local network
can also use IPv4 services. The Device uses it’s configured IPv4 WAN IP to route IPv4 traffic to the
IPv4 Internet.
Figure 17
ISP (IPv4)
IPv6 Internet
IPv4
IPv6
BR
IPv6 in IPv4
IPv4 Internet
IPv4
+
LAN
- IPv6
- IPv4
WAN
- IPv4
- IPv6 in IPv4
IPv6 Rapid Deployment
Dual Stack Lite
Use Dual Stack Lite when local network computers use
IPv4 and the ISP has an IPv6 network. When
the Device has an IPv6 WAN address and you set IPv6/IPv4 Dual Stack to IPv6, you can enable Dual
Stack Lite to use IPv4 computers and services.