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For more information on DHCP options, go to
http://www.ietf.org/rfc/rfc2131.txt?number=2131 or
http://www.ietf.org/rfc/rfc2132.txt?number=2132.
In the case where you do not have control of your DHCP server or do not have
the ability to set the DHCP options, an alternate method of automatically
discovering the provisioning server address is required. Connecting to a
secondary DHCP server that responds to DHCP INFORM queries with a
requested boot server value is one possibility. For more information, refer to
http://www.ietf.org/rfc/rfc3361.txt?number=3361 and
http://www.ietf.org/rfc/rfc3925.txt?number=3925.
boot server
address
Refer to DHCP
Menu on page
3-7
•• - •
SIP server address
151
Note: This value
is configurable.
•- - •
SNTP server
address
42 then 4 • - • •
SNTP GMT offset 2•-• •
DNS server IP
address
6•-- •
alternate DNS
server IP address
6•-- •
DNS domain 15 • - - •
VLAN ID
Refer to DHCP
Menu on page
3-7
Warning: Cisco Discovery Protocol (CDP) overrides Local FLASH
that overrides DHCP VLAN Discovery.
Parameter DHCP Option DHCP
Alternate
DHCP
Configuration File
(application only)
Local
FLASH
Note
The configuration file value for SNTP server address and SNTP GMT offset can
be configured to override the DHCP value. Refer to
tcpIpApp.sntp.address.overrideDHCP
in Time Synchronization <sntp/> on page
A-59.
The CDP Compatibility value can be obtained from a connected Ethernet switch if
the switch supports CDP.