Chapter 10 Interfaces
ZyWALL USG Series User’s Guide
301
DHCPv6
The Dynamic Host Configuration Protocol for IPv6 (DHCPv6, RFC 3315) is a server-client protocol that
allows a DHCP server to assign and pass IPv6 network addresses, prefixes and other configuration
information to DHCP clients. DHCPv6 servers and clients exchange DHCP messages using UDP.
Each DHCP client and server has a unique DHCP Unique IDentifier (DUID), which is used for identification
when they are exchanging DHCPv6 messages. The DUID is generated from the MAC address, time,
vendor assigned ID and/or the vendor's private enterprise number registered with the IANA. It should not
change over time even after you reboot the device.
10.1.3 What You Need to Do First
For IPv6 settings, go to the Configuration > System > IPv6 screen to enable IPv6 support on the Zyxel
Device first.
10.2 Port Role
To access this screen, click Configuration > Network > Interface > Port Role. Use the Port Role screen to
set the Zyxel Device’s flexible ports as part of the lan1, lan2, ext-wlan, ext-lan or dmz interfaces. This
creates a hardware connection between the physical ports at the layer-2 (data link, MAC address)
level. This provides wire-speed throughput but no security.
Note: See Section 1.1 on page 28 to see which models support port role.
Note the following if you are configuring from a computer connected to a lan1, lan2, ext-wlan, ext-lan
or dmz port and change the port's role:
• A port's IP address varies as its role changes, make sure your computer's IP address is in the same
subnet as the Zyxel Device's lan1, lan2, ext-wlan, ext-lan or dmz IP address.
• Use the appropriate lan1, lan2, ext-wlan, ext-lan or dmz IP address to access the Zyxel Device.
Figure 239 Configuration > Network > Interface > Port Role
Physical Ports
Default
interface (ZONE)
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