User manual

Chapter 4 - Layer 3 Command Set - IP Networking DHCP Server
Alvarion BreezeNET B130/B300 GigE 218 Operational User Manual
4 Interface. Sent to the client which received a lease from one of the scopes
which is attached to the interface (and the value of the requested option was
not in scope's reservation, in the scope itself and in interface's reservation).
5 Server. Sent to clients which received a lease from one of the scopes (if the
value of the option was not in all divisions listed above)? Meaning of the
division - default value.
If option's value does not exist in all divisions, client does not receive anything
from the server. Two exceptions are possible:
 Address Time - the value of this parameter is ALWAYS sent to the client. If this
value is not specified in all divisions, the client receives a default value of 120
(lease time - 2 minutes).
 Subnet Mask - the value of this parameter is ALWAYS sent to the client. The
value of this option is automatically determined by the server and it cannot be
defined in options divisions while server configuration. The value of the subnet
mask for the client always equals subnet mask of the interface to which the
scope is attached (this scope gave a lease to the client)
DHCP configuration options (overall table) is available using the following link:
http://www.iana.org/assignments/bootp-dhcp-parameters
To define a set of options, DHCP server has special commands for each division.
These commands have parameters, which are inputted in a common way (for all
divisions):
OPTION_NAME - name of the option (see the link for the table above). If option
name has spaces, they must be substituted with "_" sign. Option name is not
case-sensitive.
OPTION_VALUE - value of the option. Input format depends on the purpose of the
option and is divided into three categories by DHCP server:
1 Symbolic. A string (e.g. for Bootfile-Name option). If this option's value has
spaces, the option value should be put in quotes.
2 Binary. One or several decimal numbers. If several numbers should be
specified, they are separated by commas. Options examples: Address Time,
Time Offset.
3 IP-address. One or several values - IP-addresses. Several IP-addresses are
separated by commas.
Commands for defining/adding options for different divisions: