Chapter 9 Interfaces
ZyWALL ATP Series User’s Guide
263
Address from
DHCPv6 Prefix
Delegation
Use this table to have the Zyxel Device obtain an IPv6 prefix from the ISP or a connected
uplink router for an internal network, such as the LAN or DMZ. You have to also enter a suffix
address which is appended to the delegated prefix to form an address for this interface.
See Prefix Delegation on page 209 for more information.
To use prefix delegation, you must:
• Create at least one DHCPv6 request object before configuring this table.
• The external interface must be a DHCPv6 client. You must configure the DHCPv6
request options using a DHCPv6 request object with the type of prefix-delegation.
• Assign the prefix delegation to an internal interface and enable router advertisement
on that interface.
Add Click this to create an entry.
Edit Select an entry and click this to change the settings.
Remove Select an entry and click this to delete it from this table.
References Select an entry and click References to open a screen that shows which settings use the
entry. See Section 9.3.4 on page 230 for an example.
# This field is a sequential value, and it is not associated with any entry.
Delegated
Prefix
Select the DHCPv6 request object to use from the drop-down list.
Suffix
Address
Enter the ending part of the IPv6 address, a slash (/), and the prefix length. The Zyxel Device
will append it to the delegated prefix.
For example, you got a delegated prefix of 2003:1234:5678/48. You want to configure an IP
address of 2003:1234:5678:1111::1/128 for this interface, then enter ::1111:0:0:0:1/128 in this
field.
Address This field displays the combined IPv6 IP address for this interface.
Note: This field displays the combined address after you click OK and reopen this
screen.
DHCPv6 Setting
DHCPv6 Select N/A to not use DHCPv6.
Select Client to set this interface to act as a DHCPv6 client.
Select Server to set this interface to act as a DHCPv6 server which assigns IP addresses and
provides subnet mask, gateway, and DNS server information to clients.
Select Relay to set this interface to route DHCPv6 requests to the DHCPv6 relay server you
specify. The DHCPv6 server(s) may be on another network.
DUID This field displays the DHCP Unique IDentifier (DUID) of the interface, which is unique and
used for identification purposes when the interface is exchanging DHCPv6 messages with
others. See DHCPv6 on page 210 for more information.
DUID as MAC Select this to have the DUID generated from the interface’s default MAC address.
Customized DUID If you want to use a customized DUID, enter it here for the interface.
Enable Rapid
Commit
Select this to shorten the DHCPv6 message exchange process from four to two steps. This
function helps reduce heavy network traffic load.
Note: Make sure you also enable this option in the DHCPv6 clients to make rapid
commit work.
Information
Refresh Time
Enter the number of seconds a DHCPv6 client should wait before refreshing information
retrieved from DHCPv6.
Request Address This field is available if you set this interface to DHCPv6 Client. Select this to get an IPv6 IP
address for this interface from the DHCP server. Clear this to not get any IP address
information through DHCPv6.
Table 105 Configuration > Network > Interface > VLAN > Add / Edit (continued)
LABEL DESCRIPTION
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