dhcpcd-discuss

Hi,
Today I was testing dhcp 4 and 5 versions in my device and found that it is
not supporting user defined options. I would like to use option 242 or 243
to get SIP server IP from DHCP server. After seeing the dhcp 4 and 5 code I
found only up to options 119 are defined in struct dhcp_opt in dhcp.c code.
How do I use proprietary option in my dhcp client? for example, how to add
option 242, 243 in dhcpclient to get application server IP adresses from
DHCP server?

Regards
Ram