Parameter configuration through DHCP

Last Updated : Apr 17, 2026 |
The phonesAvaya J100 Series IP Phones support the DHCP configuration option called Site Specific Option (SSON). Using this option, custom parameters can be configured on the phone through a DHCP server. In DHCP DISCOVER, the phone requests for the SSON, typically configured in DHCP Option 242. To respond to this request, configure the DHCP server with proper data supplied in the offer for this option value. The following is an example of such configuration:option avaya-option-242 L2Q=1,L2QVLAN=1212,httpsrvr=192.168.0.100
The following parameters can be configured with this feature:
Parameter
Set to
DHCP lease time
DHCP lease renew time
DHCP lease rebind time
DOMAIN
DNSSRVR
HTTPSRVR
The siaddr parameter, if that parameter is non-zero
IPADD
The yiaddr parameter
LOGSRVR
MTU_SIZE
NETMASK
ROUTER
SNTPSRVR