kea/doc/examples/kea4/several-subnets.json

# This is an example configuration file for DHCPv4 server in Kea.
# It's a basic scenario with three IPv4 subnets configured. In each
# subnet, there's a smaller pool of dynamic addresses.

{ "Dhcp4":

{ 
# Kea is told to listen on eth0 interface only.
  "interfaces": [ "eth0" ],

# We need to specify lease type. As of May 2014, three backends are supported:
# memfile, mysql and pgsql. We'll just use memfile, because it doesn't require
# any prior set up.
  "lease-database": {
    "type": "memfile"
  },

# Addresses will be assigned with the valid lifetimes being 4000.
# Client is told to start renewing after 1000 seconds. If the server
# does not repond after 2000 seconds since the lease was granted, client
# is supposed to start REBIND procedure (emergency renewal that allows
# switching to a different server).
  "valid-lifetime": 4000,
  "renew-timer": 1000,
  "rebind-timer": 2000,

# The following list defines subnets. Each subnet consists of at
# least subnet and pool entries.
  "subnet4": [ 
  {    "pool": [ "192.0.2.1 - 192.0.2.200" ],
       "subnet": "192.0.2.0/24"  },
  {    "pool": [ "192.0.3.100 - 192.0.3.200" ],
       "subnet": "192.0.3.0/24"  },
  {    "pool": [ "192.0.4.1 - 192.0.4.254" ],
       "subnet": "192.0.4.0/24"  } ]
}

}