@param client_index - opaque cookie to identify the sender
@param pid - client pid registered to receive notification
@param is_ipv6 - if non-zero the address is ipv6, else ipv4
+ @param mask_width - The length of the subnet mask assigned
@param host_address - Host IP address
@param router_address - Router IP address
@param host_mac - Host MAC address
u32 pid;
u8 hostname[64];
u8 is_ipv6;
+ u8 mask_width;
u8 host_address[16];
u8 router_address[16];
u8 host_mac[6];