Simple DHCP server based on OpenBSD and bash programming. bash-dhcp-server suitable only for assigning IP address in networks with single host sending DHCP Discover. This dhcp-server is NOT fit RFC2131/RFC2132, but still able to assign and renew IP addresses in small or temporary networks.
Developed just for fun.
- OpenBSD netcat (tested on
debian patchlevel 1.130-3) - bash (tested on
4.4.12(1)-release) - root privileges
By default bash-dhcp-server assumes that host ip address is 192.168.45.1 and reserved ip for client is 192.168.45.101.
This can be changed with command-line options:
./dhcp.sh -s 10.0.0.1 -i 10.0.0.15
Full list of options available with option -h:
# ./dhcp.sh -h
Usage: ./dhcp.sh [option]...
-s <ip> set server's ip (default 192.168.45.101)
-m <ip> set netmask (default 255.255.255.0)
-i <ip> set ip address, proposed to client with dhcp (default 192.168.45.101)
-g <ip> set gateway (default 192.168.45.1)
-l <time> set lease time (default 500)
-p <interface> set server's ip on an interface
-h show this help
-d enable debug output
Server quits after DHCPACK is sent.
So, if there are many DHCPDISCOVERing devices in network, ip address would be assigned to fastest one.