kea/doc/examples/kea4/multiple-options.json

# This is an example configuration file for the DHCPv4 server in Kea.
# It demonstrates simple configuration of the options for a subnet.

{ "Dhcp4":

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

# 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 valid lifetimes being 4000. Client
# is told to start renewing after 1000 seconds. If the server does not respond
# 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 and rebind timers are commented out. This implies that options
# 58 and 59 will not be sent to the client. In this case it is up to
# the client to pick the timer values according to RFC2131. Uncomment the
# timers to send these options to the client.
#  "renew-timer": 1000,
#  "rebind-timer": 2000,

# Defining a subnet. There are 3 DHCP options returned to the
# clients connected to this subnet. The first two options are
# identified by the name. The third option is identified by the
# option code.
  "subnet4": [
    {
       "pools": [ { "pool":  "192.0.2.10 - 192.0.2.200" } ],
       "subnet": "192.0.2.0/24",
       "interface": "ethX",
       "option-data": [
         {
             "name": "domain-name-servers",
             "data": "192.0.2.1, 192.0.2.2"
         },
         {
             "name": "routers",
             "data": "192.0.2.1"
         },
         {
             "code": 15,
             "data": "example.org"
         }
       ]
    } 
  ]
},

# The following configures logging. It assumes that messages with at least
# informational level (info, warn, error) will will be logged to stdout.
"Logging": {
    "loggers": [
        {
            "name": "kea-dhcp4",
            "output_options": [
                {
                    "output": "stdout"
                }
            ],
            "severity": "INFO"
        }
    ]
}

}