[Kea-users] Kea allocates addresses from the wrong subnet
chris at slater-walker.net
chris at slater-walker.net
Wed Jan 6 18:19:01 UTC 2021
I'm experiencing a strange issue with Kea issuing to some DHCP clients an IP address from the wrong subnet and associated pool. This means in effect that clients on my local LAN/WLAN are getting IP addresses from the guest WLAN. It is not happening to all clients however. At present I have one phone and one laptop affected.
I have 2 subnets configured in both IPv4 and IPv6 but my problem seems to be limited to IPv4, and at this time I'm really only interested in IPv4.
I'm running a single server (Ubuntu) with 2 interfaces: bond0 and bond0.100 - these interfaces are both working fine and are brought up at boot time.
IP addressing:
bond0: 192.168.2.253
bond0.100: 192.168.100.3
The attached Cisco 2960g switch has the correct native and tagged VLANs configured.
Kea is listening on both interfaces, and in the subnet4 / subnet config I have specified a specific interface for each subnet.
Config as follows (I've cut out a lot of option and reservation config so the JSON formatting might look wrong):
{
"Dhcp4": {
"interfaces-config": {
"interfaces": [
"bond0/192.168.2.253",
"bond0.100/192.168.100.3"
]
},
"control-socket": {
"socket-type": "unix",
"socket-name": "/tmp/kea-dhcp4-ctrl.sock"
},
"lease-database": {
"type": "memfile",
"persist": true,
"lfc-interval": 3600
},
"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
},
"renew-timer": 7200,
"rebind-timer": 14400,
"valid-lifetime": 28800,
"subnet4": [
{
"subnet": "192.168.2.0/24",
"interface": "bond0",
"pools": [
{
"pool": "192.168.2.100 - 192.168.2.199"
}
],
{
"subnet": "192.168.100.0/24",
"interface": "bond0.100",
"pools": [
{
"pool": "192.168.100.100 - 192.168.100.199"
}
],
}
]
},
}
If anyone has any idea if I'm doing something wrong I'd be grateful to hear it.
Thanks,
Chris Slater-Walker
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/kea-users/attachments/20210106/15eb9d73/attachment.htm>
More information about the Kea-users
mailing list