ZyXEL Communications USG40 User Manual page 175

Table 75 Configuration > Network > Interface > Ethernet > Edit > Add/Edit Extended Options
LABEL DESCRIPTION
First IP Address, If you selected Time Server (4), NTP Server (41), SIP Server (120), CAPWAP AC
Second IP (138), or TFTP Server (150), you have to enter at least one IP address of the
Address, Third IP corresponding servers in these fields. The servers should be listed in order of your
Address preference.
First Enterprise If you selected VIVC (124) or VIVS (125), you have to enter at least one vendor's 32-
ID, Second bit enterprise number in these fields. An enterprise number is a unique number that
Enterprise ID identifies a company.
First Class, If you selected VIVC (124), enter the details of the hardware configuration of the host on
Second Class which the client is running, or of industry consortium compliance.
First If you selected VIVS (125), enter additional information for the corresponding enterprise
Information, number in these fields.
Second
Information
OK Click this to close this screen and update the settings to the previous Edit screen.
Cancel Click Cancel to close the screen.
The following table lists the available DHCP extended options (defined in RFCs) on the ZyWALL/
USG. See RFCs for more information.
Table 76 DHCP Extended Options
OPTION NAME CODE
Time Offset 2
Time Server 4
NTP Server 42
TFTP Server Name 66
Bootfile 67
SIP Server 120
VIVC 124
VIVS 125
CAPWAP AC 138
TFTP Server 150
Chapter 8 Interfaces
DESCRIPTION
This option specifies the offset of the client's subnet in seconds from
Coordinated Universal Time (UTC).
This option specifies a list of Time servers available to the client.
This option specifies a list of the NTP servers available to the client by IP
address.
This option is used to identify a TFTP server when the "sname" field in the
DHCP header has been used for DHCP options. The minimum length of the
value is 1.
This option is used to identify a bootfile when the "file" field in the DHCP
header has been used for DHCP options. The minimum length of the value is
1.
This option carries either an IPv4 address or a DNS domain name to be used
by the SIP client to locate a SIP server.
Vendor-Identifying Vendor Class option
A DHCP client may use this option to unambiguously identify the vendor that
manufactured the hardware on which the client is running, the software in
use, or an industry consortium to which the vendor belongs.
Vendor-Identifying Vendor-Specific option
DHCP clients and servers may use this option to exchange vendor-specific
information.
CAPWAP Access Controller addresses option
The Control And Provisioning of Wireless Access Points Protocol allows a
Wireless Termination Point (WTP) to use DHCP to discover the Access
Controllers to which it is to connect. This option carries a list of IPv4
addresses indicating one or more CAPWAP ACs available to the WTP.
The option contains one or more IPv4 addresses that the client may use. The
current use of this option is for downloading configuration from a VoIP server
via TFTP; however, the option may be used for purposes other than
contacting a VoIP configuration server.
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