According to this DHCP packet header, which field is populated by a DHCP relay agent with its own IP address before the DHCPDISCOVER message isforwarded to the DHCP server?
A. ciaddr
B. yiaddr
C. siaddr
D. giaddr
Which field is populated by a DHCP relay agent with its own IP address before the DHCPDISCOVER message isforwarded to the DHCP server?