q-dhcp-client Compilation: DEBUG_DIR_PATH - path to dir where .bin files will be created in -d mode ARP_ROUTER - added solely for test purpose, it will force client to do ARP request not to requested ip, but to ip of router This will result in receiving IP_OCCUPIER Installing: 1)Edit Makefile to satisfy your requirements and tools 2)Execute `make` 3)If you want - you can do `make check`, but read warning Install in any place by moving/copying ./q-dhcp-client Usage options: -d - show debug info -i <interface name> - specify interface to work with --dry - do not edit interface ip, mask and routes --arp-check - perform arp check after receiving DHCP_OFFER send DHCP_DECLINE if dhcp client receives ARP_REPLY --release - send DHCP_RELEASE to free current ip --no-debug-files - do not create .bin debug files when -d option used Return codes: 0 - OK -1 - Internal error -2 - IP already occupied or got DHCP_NAK Always prints IP:NETMASK:GATEWAY IP:LEASE TIME(s), so you can parse it with `cut` Examples: #Get ip addr, perform arp check #Set ip addr, net mask and default route for device eth0 if ip is free q-dhcp-client -i eth0 --arp-check #Get ip and set ip, mask and route q-dhcp-client -i eth0 #Send DHCP_RELEASE and delete ip addr from device q-dhcp-client -i eth0 --release #Get ip(without setting it in device) and print debug info q-dhcp-client -i eth0 --dry -d I use it for my LFS build with runit