+ char* ciaddr; /* Client address */
+ char* giaddr; /* Gateway address */
+ char* bootp_retries; /* Bootp retries */
+ char* tftp_retries; /* TFTP retries */
+ char* subnetmask; /* Subnet mask */
+ char* addl_params; /* copy all additional parameters */
+
+ /* Following fields are used only in ipv6 format */
+ int is_ipv6; /* is ipv6 specified ? */
+ char* dhcpv6; /* dhcpv6 string */
+ char* blksize; /* blksize string */