isc-dhcp-dhcp

apt-get install isc-dhcp-server

vi /etc/dhcp/dhcpd.conf

コメントにする
#option domain-name "example.org";
#option domain-name-servers ns1.example.org, ns2.example.org;

コメントを取る
# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

最終行に追記

subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.50 192.168.1.100;
option broadcast-address 192.168.1.255;
option routers 192.168.1.1;
default-lease-time 600;
max-lease-time 7200;
option domain-name "local";
option domain-name-servers 8.8.8.8, 8.8.4.4;
}

vi /etc/default/isc-dhcp-server

#IINTERFACES=""
NTERFACES="eth0"


再起動

service isc-dhcp-server restart

これでIP一覧が出てくる

apt-get install nmap

nmap -sP 192.168.1.1-255