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// This is an example configuration file for the DHCPv6 server in Kea.
// The purpose of this example is to showcase how clients can be classified.
{ "Dhcp6":
{
// Kea is told to listen on eth0 interface only.
"interfaces-config": {
"interfaces": [ "eth0" ]
},
// Let's use the simplest backend: memfile and use some reasonable values
// for timers. They are of no concern for the classification demonstration.
"lease-database": {
"type": "memfile",
"lfc-interval": 3600
},
"renew-timer": 1000,
"rebind-timer": 2000,
"preferred-lifetime": 3000,
"valid-lifetime": 4000,
// This list defines several classes that incoming packets can be assigned to.
// One packet can belong to zero or more classes.
"client-classes": [
// The first class attempts to match all packets coming in on eth0 interface.
{
"name": "lab",
"test": "pkt.iface == 'eth0'",
"option-data": [{
"name": "dns-servers",
"data": "2001:db8::1"
}]
},
// Let's classify all incoming RENEW (message type 5) to a separate
// class.
{
"name": "renews",
"test": "pkt6.msgtype == 5"
},
// Let's pick cable modems. In this simple example we'll assume the device
// is a cable modem if it sends a vendor option with enterprise-id equal
// to 4491.
{
"name": "cable-modems",
"test": "vendor.enterprise == 4491"
}
],
// The following list defines subnets. Each subnet consists of at
// least subnet and pool entries.
"subnet6": [
{
"pools": [ { "pool": "2001:db8:1::/80" } ],
"subnet": "2001:db8:1::/64",
"client-class": "cable-modems",
"interface": "eth0"
},
// The following subnet contains a class reservation for a client using
// DUID 01:02:03:04:05:0A:0B:0C:0D:0E. This client will always be assigned
// to this class.
{
"pools": [ { "pool": "2001:db8:2::/80" } ],
"subnet": "2001:db8:2::/64",
"reservations": [
{
"duid": "01:02:03:04:05:0A:0B:0C:0D:0E",
"client-classes": [ "cable-modems" ]
} ],
"interface": "eth0"
},
// The following subnet contains a pool with a class constraint: only
// clients which belong to the class are allowed to use this pool.
{
"pools": [
{
"pool": "2001:db8:4::/80",
"client-class": "cable-modems"
} ],
"subnet": "2001:db8:4::/64",
"interface": "eth1"
}
],
// The following configures logging. It assumes that messages with at
// least informational level (info, warn, error and fatal) should be
// logged to stdout.
"loggers": [
{
"name": "kea-dhcp6",
"output_options": [
{
"output": "stdout"
}
],
"debuglevel": 0,
"severity": "INFO"
}
]
}
}
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