Just a shot in the dark without seeing your configuration or anything, but when I had that problem (admittedly it was DHCPv6) Kea was allowing me to set impossible lease length values (max lease length or so greater than valid lease length). There is a rather long thread about it in the list here - was in November 2016. If you have different values set for your lease lengths - try setting them all the same and see if that helps.
On Wed, Dec 7, 2016 at 10:04 AM, Ralf Hildebrandt < [email protected]> wrote: > We're trying to replace a working installation of isc-dhcp-server > 4.3.3 with KEA 1.1.0 on the same box. > > * isc-dhcp hands out IP addresses AND the client accepts them - all is > well > > * KEA on the other hand does hand out IP addresses: > > 2016-12-07 15:59:02.562 INFO [kea-dhcp4.leases/35075] DHCP4_LEASE_ADVERT > [hwtype=1 40:6c:8f:52:7d:60], cid=[01:40:6c:8f:52:7d:60], tid=0x1194bc8e: > lease 10.31.192.5 will be advertised > 2016-12-07 15:59:18.596 INFO [kea-dhcp4.leases/35075] DHCP4_LEASE_ADVERT > [hwtype=1 40:6c:8f:52:7d:60], cid=[01:40:6c:8f:52:7d:60], tid=0x1194bc8f: > lease 10.31.192.6 will be advertised > 2016-12-07 15:59:34.627 INFO [kea-dhcp4.leases/35075] DHCP4_LEASE_ADVERT > [hwtype=1 40:6c:8f:52:7d:60], cid=[01:40:6c:8f:52:7d:60], tid=0x1194bc90: > lease 10.31.192.7 will be advertised > 2016-12-07 15:59:50.659 INFO [kea-dhcp4.leases/35075] DHCP4_LEASE_ADVERT > [hwtype=1 40:6c:8f:52:7d:60], cid=[01:40:6c:8f:52:7d:60], tid=0x1194bc91: > lease 10.31.192.8 will be advertised > > and these DHCPOFFERS arrive at the client. But then the client > doesn't seem to accept them at all. It just keeps asking over and over > again. > > On the same box, we basically shut down KEA, start up ISC-DHCPD and > vice versa. We're currently using wireshark to record the traffic, but > in the meantime: anbody got an idea what might be wrong? > > -- > Ralf Hildebrandt Charite Universitätsmedizin Berlin > [email protected] Campus Benjamin Franklin > http://www.charite.de Hindenburgdamm 30, 12203 Berlin > Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155 > _______________________________________________ > Kea-users mailing list > [email protected] > https://lists.isc.org/mailman/listinfo/kea-users >
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