Dreamplug, DHCP server

Setup the network interface.


Edit the file /etc/network/interfaces.

• auto lo
• iface lo inet loopback
• 
  
• auto eth0
• iface eth0 inet static
•          address 192.168.1.1
•          netmask 255.255.255.0
•          network 192.168.1.0
•          broadcast 192.168.1.255
• 
  
• auto eth1
• iface eth1 inet dhcp

Edit DHCP server config file /etc/udhcpd.conf

• start              192.168.1.100
• end               192.168.1.199
• interface       eth0
• opt   lease     86400
• opt   router    192.168.1.1
• opt   subnet   255.255.255.0
• opt   dns        192.168.1.1
• opt   domain  localdomain
• 
  
• max_leases    101
• lease_file       /var/lib/udhcpd.leases
• auto_time       5

View udhcp's DHCP client table, use the command

• # dumpleases -f /var/lib/udhcpd.leases

If there are previous/old mac address and IP's stored in this file, to make udhcp use the new IP range the old udhcp.leases must be removed.

• # /etc/init.d/udhcpd stop     ( Stop the udhcpd deamon )
• # rm /var/lib/udhcpd.leases   ( Remove the old lease file )
• # touch /var/lib/udhcpd.leases    ( Create a new empty lease file )
• # /etc/init.d/udhcpd start       ( Start the udhcpd deamon )