Chapter 9 Interfaces
ZyWALL ATP Series User’s Guide
264
DHCPv6 Request
Options /
DHCPv6 Lease
Options
If this interface is a DHCPv6 client, use this section to configure DHCPv6 request settings that
determine what additional information to get from the DHCPv6 server.
If this interface is a DHCPv6 server, use this section to configure DHCPv6 lease settings that
determine what to offer to the DHCPv6 clients.
Add
Click this to create an entry in this table. See
information.
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
for an example.
#
This field is a sequential value, and it is not associated with any entry.
Name
This field displays the name of the DHCPv6 request or lease object.
Type
This field displays the type of the object.
Value
This field displays the IPv6 prefix that the Zyxel Device obtained from an uplink router (
Server
is selected) or will advertise to its clients (
Client
is selected).
Interface
When
Relay
is selected, select this check box and an interface from the drop-down list if
you want to use it as the relay server.
Relay Server
When
Relay
is selected, select this check box and enter the IP address of a DHCPv6 server
as the relay server.
IPv6 Router
Advertisement
Setting
Enable Router
Advertisement
Select this to enable this interface to send router advertisement messages periodically. See
IPv6 Router Advertisement on page 209
for more information.
Advertised Hosts
Get Network
Configuration
From DHCPv6
Select this to have the Zyxel Device indicate to hosts to obtain network settings (such as
prefix and DNS settings) through DHCPv6.
Clear this to have the Zyxel Device indicate to hosts that DHCPv6 is not available and they
should use the prefix in the router advertisement message.
Advertised Hosts
Get Other
Configuration
From DHCPv6
Select this to have the Zyxel Device indicate to hosts to obtain DNS information through
DHCPv6.
Clear this to have the Zyxel Device indicate to hosts that DNS information is not available in
this network.
Router
Preference
Select the router preference (
Low
,
Medium
or
High
) for the interface. The interface sends
this preference in the router advertisements to tell hosts what preference they should use
for the Zyxel Device. This helps hosts to choose their default router especially when there are
multiple IPv6 router in the network.
Note: Make sure the hosts also support router preference to make this function
work.
MTU
The Maximum Transmission Unit. Type the maximum size of each IPv6 data packet, in bytes,
that can move through this interface. If a larger packet arrives, the Zyxel Device divides it
into smaller fragments.
Hop Limit
Enter the maximum number of network segments that a packet can cross before reaching
the destination. When forwarding an IPv6 packet, IPv6 routers are required to decrease the
Hop Limit by 1 and to discard the IPv6 packet when the Hop Limit is 0.
Advertised Prefix
Table
Configure this table only if you want the Zyxel Device to advertise a fixed prefix to the
network.
Add
Click this to create an IPv6 prefix address.
Edit
Select an entry in this table and click this to modify it.
Remove
Select an entry in this table and click this to delete it.
Table 105 Configuration > Network > Interface > VLAN > Add / Edit (continued)
LABEL
DESCRIPTION