ZyXEL Communications XS3800-28, User Manual, Page: 168 / 789

Chapter 24 IPv6
XS3800-28 User’s Guide
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24.3 IPv6 Global Setup
Use this screen to configure the global IPv6 settings. Click SYSTEM > IPv6 > IPv6 Global Setup to display
the screen as shown next.
Global
Unicast
Address
This field displays the Switch’s global unicast address to identify this interface.
Joined
Group
Address
This field displays the IPv6 multicast addresses of groups the Switch’s interface joins.
DHCPv6 Client Active
This field displays whether the Switch acts as a DHCPv6 client to get an IPv6 address from a DHCPv6 server.
Identity Association
An Identity Association (IA) is a collection of addresses assigned to a DHCP client, through which the server and
client can manage a set of related IP addresses. Each IA must be associated with exactly one interface.
IA Type The IA type is the type of address in the IA. Each IA holds one type of address. IA_NA means an
identity association for non-temporary addresses and IA_TA is an identity association for
temporary addresses.
IAID Each IA consists of a unique IAID and associated IP information.
T1 This field displays the DHCPv6 T1 timer. After T1, the Switch sends the DHCPv6 server a Renew
message.
An IA_NA option contains the T1 and T2 fields, but an IA_TA option does not. The DHCPv6 server
uses T1 and T2 to control the time at which the client contacts with the server to extend the
lifetimes on any addresses in the IA_NA before the lifetimes expire.
T2 This field displays the DHCPv6 T2 timer. If the time T2 is reached and the server does not respond,
the Switch sends a Rebind message to any available server.
State This field displays the state of the TA. It shows
Active when the Switch obtains addresses from a DHCpv6 server and the TA is created.
Renew when the TA’s address lifetime expires and the Switch sends out a Renew message.
Rebind when the Switch does not receive a response from the original DHCPv6 server and sends
out a Rebind message to another DHCPv6 server.
SID This field displays the DHCPv6 server’s unique ID.
Address This field displays the Switch’s global address which is assigned by the DHCPv6 server.
Preferred
Lifetime
This field displays how long (in seconds) that the global address remains preferred.
Valid
Lifetime
This field displays how long (in seconds) that the global address is valid.
DNS This field displays the DNS server address assigned by the DHCPv6 server.
Domain List This field displays the address record when the Switch queries the DNS server to resolve domain
names.
Restart
DHCPv6 Client Click Restart to send a new DHCP request to the DHCPv6 server and update the IPv6 address and
DNS information for this interface.
Table 51 SYSTEM > IPv6 > IPv6 Status > IPv6 Interface Details (continued)
LABEL DESCRIPTION