How To Set Up An Ipv6-In-Ipv4 Tunnel - ZyXEL Communications ZyWALL USG100-Plus User Manual

Chapter 2 How to Set Up Your Network
Note: For 6to4, you do not need to enable IPv6 in the wan1 since the IPv6 packets will be
redirected into the 6to4 tunnel.
In Windows, some IPv6 related tunnels may be enabled by default such as Teredo and 6to4
3
tunnels. It may cause your computer to handle IPv6 packets in an unexpected way. It is
recommended to disable those tunnels on your computer.

2.7 How to Set Up an IPv6-in-IPv4 Tunnel

This example shows how to use the interface and policy route configuration screens to create an
IPv6-in-IPv4 tunnel.
Figure 24 IPv6-in-IPv4 Tunnel Example
2003:1111:1111:1::/64
In this example, the ZyWALLs (Z and Y) act as IPv6-in-IPv4 routers which connect the IPv4
Internet and an individual IPv6 network. This configuration example only shows the settings on
ZyWALL Z. You can use similar settings to configure ZyWALL Y.
Note: In the IPv6-in-IPv4 tunnel application, you must configure the peer gateway's WAN
IPv4 address as the remote gateway IP.
2.7.1 Configuration Concept
After the IPv6-in-IPv4 tunnel settings are complete, IPv4 and IPv6 packets transmitted between
WAN1 and LAN1 will be handled by the ZyWALL through the following flow.
Figure 25 IPv6-in-IPv4 Tunnel Configuration Concept
LAN1
(IPv6)
2.7.2 Setting Up the IPv6-in-IPv4 Tunnel
Click Add in the CONFIGURATION > Network > Interface > Tunnel screen.
1
The Edit Tunnel screen appears. Select Enable.
2
Enter tunnel0 as the Interface Name and select IPv6-in-IPv4 as the Tunnel Mode.
Select wan1 in the Interface field in the Gateway Settings section.
Enter 5.6.7.8 as the remote gateway's IP address. Click OK.
38
Z
LAN WAN
IPv6
2003:1111:1111:1::1/128 1.2.3.4
IPv6-in-IPv4
TUNNEL
Y
LAN
WAN
IPv4
5.6.7.8 2004:2222:2222:2::1/128
Policy Route
ZyWALL USG100-PLUS User's Guide
IPv6
2004:2222:2222:2::/64
WAN1
(IPv4)