Configuring an Internal DHCP Server Configuration File Parameters and Syntax
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 22-14
Configuration File Parameters and Syntax
The following table provides detailed information about the configuration file options and syntax
specifications.
Option
Code
dhcpd.conf
Key-word
dhcpd.conf
example
Data type
Default
Value
Description
1 subnet-mask
option
subnet-mask
255.255.0.0;
N/A Same as in
Subnet
Profile
Specifies the client’s subnet mask. If
both the subnet mask and the router
option are specified in a DHCP reply,
the subnet mask option must be
specified before the router option.
2 time-offset
option
time-offset
1000;
numeric_
signed
N/A Specifies the offset of the client's
subnet (in seconds) from
Coordinated Universal Time (also
referred to as UTC). A positive offset
indicates a location east of the zero
meridian and a negative offset
indicates allocation west of the zero
meridian. For example, to enter a
time offset for a client subnet located
in the Eastern Standard Timezone (5
hours west of the UTC zero
meridian), enter -18000.
3routers
option
routers
100.0.0.1;
N/A Same as in
Subnet
Profile
Lists the IP addresses for the routers
for each client subnet defined.
Routers should be listed in order of
preference.
4time-server
option time-
server
10.10.0.10;
N/A Same as in
Subnet
Profile
Specifies IP address of the RFC 868
time server available to the client.
5 name-servers
option name-
servers
10.10.0.100;
ip_address_
list
N/A Specifies IP address of the IEN-116
name server available to the client.
6 domain-name-
servers
option domain-
name-servers
10.10.0.30;
N/A Same as in
Subnet
Profile
Lists the DNS (STD 13, RFC 1035)
name server IP address(es) available
to the client. Servers should be listed
in order of preference.
7 log-servers
option
log-servers
10.10.0.100;
ip_address_
list
N/A Specifies the IP address of the MIT-
LCS UDP log server available to the
client.
8 cookie-servers
option cookie-
servers
10.10.0.100;
ip_address_
list
N/A Specifies the IP address of the RFC
865 cookie server available to the
client.
9 lpr-servers
option lpr-
servers
10.10.0.100;
ip_address_
list
N/A Specifies IP address of the line
printer server available to the client.
10 impress-servers
option impress-
servers
10.10.0.100;
ip_address_
list
N/A Specifies IP address of the Imagen
Impress server available to the client.
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