Folgendes läuft (Hab mir zwei kvm-guests gebastelt und ausprobiert…):
# This is a basic configuration for the Kea DHCPv4 sever.
# Subnet declarations are commented out and no interfaces are listed.
# Therefore, the servers will not listen or respond to any queries.
# The basic configuration must be extended to specify interfaces on
# which the servers should listen. Also, subnets and options must be
# declared.
{
# DHCPv4 configuration starts here.
"Dhcp4":
{
# Add names of interfaces to listen on.
"interfaces-config": {
"interfaces": [ "ens9" ]
},
# Use Memfile lease database backend to store leases in a CSV file.
"lease-database": {
"type": "memfile"
},
# Setup reclamation of the expired leases and leases affinity.
# Expired leases will be reclaimed every 10 seconds. Every 25
# seconds reclaimed leases, which have expired more than 3600
# seconds ago, will be removed. The limits for leases reclamation
# are 100 leases or 250 ms for a single cycle. A warning message
# will be logged if there are still expired leases in the
# database after 5 consecutive reclamation cycles.
"expired-leases-processing": {
"reclaim-timer-wait-time": 10,
"flush-reclaimed-timer-wait-time": 25,
"hold-reclaimed-time": 3600,
"max-reclaim-leases": 100,
"max-reclaim-time": 250,
"unwarned-reclaim-cycles": 5
},
# Global (inherited by all subnets) lease lifetime is mandatory parameter.
"valid-lifetime": 4000,
# Below an example of the simple subnet declaration. Uncomment to
# enable it. This is a list, denoted with [ ], of structure, denoted
# with { }. Each structure describes a single subnet and may have
# several parameters. One of those parameters is "pools" that is
# also a list of structures.
"subnet4": [
{ "subnet": "10.43.80.0/21",
"option-data": [
{ "name": "routers",
"code": 3,
"space": "dhcp4",
"csv-format": true,
"data": "10.43.80.4" },
{ "name": "domain-name-servers",
"code": 6,
"space": "dhcp4",
"csv-format": true,
"data": "10.43.80.4" }
],
"pools": [ { "pool": "10.43.85.0 - 10.43.87.254" } ] }
]
},
# Logging configuration starts here. It tells Kea servers to store
# all log messages (on severity INFO or more) in a file.
# debuglevel variable is used on DEBUG level only.
"Logging":
{
"loggers": [
{
"name": "kea-dhcp4",
"output_options": [
{
"output": "/var/log/kea-dhcp4.log",
"maxver": 4,
"maxsize": 204800,
"flush": true
}
],
"severity": "DEBUG",
"debuglevel": 99
},
{
"name": "kea-dhcp4.leases",
"output_options": [
{
"destination": "syslog",
"output": "syslog"
}
],
"severity": "DEBUG",
"debuglevel": 99
}
]
}
}
Und, hihi, NAK für nicht verwaltete Adressen innerhalb des subnetzes. Wird bestimmt besser klappen, weil hier was default ist, was im isc-dhcp-server configuriert werden muss… Jetzt wird alles gut…