ZyXEL Communications Corporation P660HNT1AV2 ユーザーズマニュアル

Chapter 7 Home Networking

P-660HN-Tx(A) v2 User’s Guide

Managed config 

flag on

Select this to have the ADSL Router indicate to hosts to obtain network settings (such 
as prefix and DNS settings) through DHCPv6. 

Clear this to have the ADSL Router indicate to hosts that DHCPv6 is not available and 
they should use the prefix in the router advertisement message.

Other config flag 

on

Select this to have the ADSL Router indicate to hosts to obtain DNS information 
through DHCPv6.

Clear this to have the ADSL Router indicate to hosts that DNS information is not 
available in this network.

Advertisement 
interval option on

Select this to have the Router Advertisement messages the VDSL Router sends specify 
the allowed interval between Router Advertisement messages.

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. 
Possible value for this field are 0-255.

Router Lifetime

Enter the time in seconds that hosts should consider the ADSL Router to be the default 
router. Possible values for this field are 0-9000.

Router Preference

Select the router preference (Low, Medium or High) for the ADSL Router. The ADSL 
Router sends this preference in the router advertisements to tell hosts what 
preference they should use for the ADSL Router. 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.

Reachable Time (ms) Enter the time in milliseconds that can elapse before a neighbor is detected. Possible 

values for this field are 0-3600000.

Retrans Timer (ms)

Enter the time in milliseconds between neighbor solicitation packet retransmissions. 
Possible values for this field are 1000-4294967295. 

RA Interval

Enter the time in seconds between router advertisement messages. Possible values for 
this field are 4-1800.

Delegate MTU from 
WAN

Select this to have the ADSL Router obtain the MTU setting from the service provider 
or uplink router.

Manual

Select this to specify the MTU manually.

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 ADSL 
Router divides it into smaller fragments.

DAD attempts

Specify the number of DAD (Duplicate Address Detection) attempts before an IPv6 
address is assigned to the ADSL Router LAN interface. Possible values for this field are 
1-7.

DHCPv6

DHCPv6 Server

Use this field to Enable or Disable DHCPv6 server on the ADSL Router.

DNSv6 Mode

Select the DNS role (Proxy or Relay) that you want the ADSL Router to act in the 
IPv6 LAN network. Alternatively, select Manual and specify the DNS servers’ IPv6 
address in the fields below.

Primary DNS

This field is available if you choose Manual as the DNSv6 mode. Enter the first DNS 
server IPv6 address the ADSL Router passes to the DHCP clients.

Secondary DNS

This field is available if you choose Manual as the DNSv6 mode. Enter the second DNS 
server IPv6 address the ADSL Router passes to the DHCP clients.

Information refresh 
time

Enter the number of seconds a DHCPv6 client should wait before refreshing 
information retrieved from DHCPv6.

Apply

Click this to save your changes.

Cancel

Click this to restore your previously saved settings.