ZyXEL Communications ZyWall USG20-VPN, Руководство пользователя

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Chapter 9 Interfaces
USG20(W)-VPN Series User’s Guide
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Select a DHCPv6 request or lease object in the Select one object field and click OK to save it.
Click Cancel to exit without saving the setting.
9.3.4 Add/Edit DHCP Extended Options
When you configure an interface as a DHCPv4 server, you can additionally add DHCP extended
options which have the USG to add more information in the DHCP packets. The available fields vary
depending on the DHCP option you select in this screen. To open the screen, click
Configuration >
Network > Interface > Ethernet > Edit , select DHCP Server in the DHCP Setting section, and
then click Add or Edit in the Extended Options table.
Figure 124
Configuration > Network > Interface > Ethernet > Edit > Add/Edit Extended Options
The following table describes labels that can appear in this screen.
Table 66
Configuration > Network > Interface > Ethernet > Edit > Add/Edit Extended Options
LABEL DESCRIPTION
Option Select which DHCP option that you want to add in the DHCP packets sent through the
interface. See the next table for more information.
Name This field displays the name of the selected DHCP option. If you selected User Defined in
the Option field, enter a descriptive name to identify the DHCP option. You can enter up
to 16 characters (“a-z”, “A-Z, “0-9”, “-”, and “_”) with no spaces allowed. The first
character must be alphabetical (a-z, A-Z).
Code This field displays the code number of the selected DHCP option. If you selected User
Defined in the Option field, enter a number for the option. This field is mandatory.
Type This is the type of the selected DHCP option. If you selected User Defined in the Option
field, select an appropriate type for the value that you will enter in the next field. Only
advanced users should configure
User Defined . Misconfiguration could result in interface
lockout.
Value Enter the value for the selected DHCP option. For example, if you selected TFTP Server
Name (66) and the type is TEXT , enter the DNS domain name of a TFTP server here. This
field is mandatory.
First IP Address,
Second IP
Address, Third IP
Address If you selected Time Server (4) , NTP Server (41) , SIP Server (120) , CAPWAP AC
(138) , or TFTP Server (150) , you have to enter at least one IP address of the
corresponding servers in these fields. The servers should be listed in order of your
preference.
First Enterprise
ID, Second
Enterprise ID If you selected VIVC (124) or VIVS (125) , you have to enter at least one vendor’s 32-
bit enterprise number in these fields. An enterprise number is a unique number that
identifies a company.
First Class,
Second Class If you selected VIVC (124) , enter the details of the hardware configuration of the host on
which the client is running, or of industry consortium compliance.