ZyXEL Communications SBG5500-A User Manual page 61

Table 10 WAN Internet > WAN Setup > Add/Edit: Routing Mode (continued)
LABEL DESCRIPTION
DNS Server This is available only when you select IPv4 Only or IPv4 IPv6 Dualstack in the IPv4 / IPv6 Mode
field.
Obtain DNS Select this if you want the SBG to use the DNS server addresses assigned by your ISP.
Server Address
Automatically
Use the Select this if you want the SBG to use the DNS server addresses you configure manually.
Following DNS
Server Address
DNS Server 1 Enter the first DNS server address.
DNS Server 2 Enter the second DNS server address.
DHCP Client This is available only when you select IPv4 Only or IPv4 IPv6 Dualstack in the IPv4 / IPv6 Mode
Options field.
Request Options Select Option 43 to have the SBG automatically add vendor specific information in the DHCP
packets to request the vendor specific options from the DHCP server.
Select Option 120 to have the SBG get the IP address or a fully-qualified domain name of SIP
server from the DHCP server.
Select Option 121 to have the SBG get static route rules from the DHCP server.
Send Options
Option 60 Select this and enter the device identity you want the SBG to add in the DHCP discovery packets
that go to the DHCP server.
Vendor Enter the Vendor Class Identifier, such as the type of the hardware or firmware.
Class ID
Option 61 Select this and enter any string that identifies the device.
IAID Enter the Identity Association Identifier (IAID) of the device, for example, the WAN connection
index number.
DUID Type Select DUID-LLT to have the SBG use DUID-LLT (DUID Based on Link-layer Address Plus Time) for
identification when exchanging DHCPv6 messages. You need to enter the hardware type, a
time value and the MAC address of the device.
Select DUID-EN to have the SBG use DUID-EN (DUID Assigned by Vendor Based upon Enterprise
Number) for identification when exchanging DHCPv6 messages. You need to enter the vendor's
registered enterprise number.
Select DUID-LL to have the SBG use DUID-LL (DUID Based on Link-layer Address) for identification
when exchanging DHCPv6 messages. You need to enter the device's hardware type and
hardware address (MAC address).
Hardware Enter the device's hardware type, assigned by the IANA.
Type
Time Enter the time that the DUID is generated.
Link-layer Enter the SBG's hardware address, that is the MAC address.
Address
Enterprise Enter the vendor's registered private enterprise number. An enterprise number is a unique
Number
number that identifies a company.
Identifier Enter a unique identifier assigned by the vendor.
Option 125 Select this to have the SBG automatically generate and add vendor specific parameters in the
DHCP discovery packets that go to the DHCP server.
6RD Enable IPv6 rapid deployment to tunnel IPv6 traffic from the local network through the ISP's IPv4
network.
The 6RD (IPv6 rapid deployment) fields display when you set the IPv4 / IPv6 Mode field to IPv4
Only.
Chapter 5 WAN/Internet
SBG5500 Series User's Guide
61