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// This is an example configuration file for DHCPv6 server in Kea.
// It's a basic scenario with one IPv6 subnet configured. It is
// assumed that one subnet (2001:db8:1::/64 is available directly
// over eth0 interface.
{ "Dhcp6":
{
// Kea is told to listen on eth0 interface only.
"interfaces-config": {
"interfaces": [ "eth0" ]
},
// We need to specify the database used to store leases. As of
// June 2022, three database backends are supported: MySQL,
// PostgreSQL and the in-memory database, Memfile.
// We'll use memfile because it doesn't require any prior set up.
"lease-database": {
"type": "memfile",
"lfc-interval": 3600
},
// Addresses will be assigned with preferred and valid lifetimes
// being 3000 and 4000, respectively. 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).
"preferred-lifetime": 3000,
"valid-lifetime": 4000,
"renew-timer": 1000,
"rebind-timer": 2000,
// 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",
"interface": "eth0"
}
],
// Enable connectivity with kea-dhcp-ddns
// (Required for dynamic DNS updates)
"dhcp-ddns" : {
"enable-updates" : true,
"server-ip" : "3001::1",
"server-port" : 3432,
"sender-ip" : "3001::2",
"sender-port" : 3433,
"max-queue-size" : 2048,
"ncr-protocol" : "UDP",
"ncr-format" : "JSON"
},
// Enable DDNS updates and configure DDNS update behavior
"ddns-send-updates" : true,
"ddns-override-no-update" : true,
"ddns-override-client-update" : true,
"ddns-replace-client-name" : "when-present",
"ddns-generated-prefix" : "test.prefix",
"ddns-qualifying-suffix" : "test.suffix.",
"ddns-update-on-renew" : false,
"ddns-use-conflict-resolution" : true,
"hostname-char-set": "[^A-Za-z0-9.-]",
"hostname-char-replacement": "x",
// 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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