DHCP_NEXT_TAG
endp = (uint8_t *)DHCP_NEXT_TAG(hdrp);
uint8_t *destp = (uint8_t *)DHCP_NEXT_TAG(hdrp) +
(uint8_t *)DHCP_NEXT_TAG(hdrp);
memmove(destp, DHCP_NEXT_TAG(hdrp), count);