After update from 4.14 to 4.15 and 4.16
dhcp server make a strange problem with some hosts (vivotek ip cameras)
log dhcp debug
10:34:54 dhcp,debug,packet PrivateLanDHCP received discover with id 1415040068 from 0.0.0.0
10:34:54 dhcp,debug,packet ciaddr = 0.0.0.0
10:34:54 dhcp,debug,packet chaddr = 00:02:D1:0D:23:37
10:34:54 dhcp,debug,packet Msg-Type = discover
10:34:54 dhcp,debug,packet Client-Id = 01-00-02-D1-0D-23-37
10:34:54 dhcp,debug,packet Class-Id = "udhcp 1.12.4"
10:34:54 dhcp,debug,packet Unknown(57) = 02-40
10:34:54 dhcp,debug,packet Parameter-List = Subnet-Mask,Router,Domain-Server,Host-Name,Domain-Name,Unknown(28),NTP-Server,NETBIOS-Name-Server
this make pool filing with strange leases
Flags: X - disabled, R - radius, D - dynamic, B - blocked
# ADDRESS MAC-ADDRESS HOS... SERVER RAT... STATUS
44 D 172.16.0.2 Private busy
45 D 172.16.0.3 Private busy
46 D 172.16.0.4 Private busy
47 D 172.16.0.5 Private busy
48 D 172.16.0.6 Private busy
49 D 172.16.0.7 Private busy
50 D 172.16.0.8 Private busy
51 D 172.16.0.9 Private busy
52 D 172.16.0.10 Private busy
53 D 172.16.0.11 Private busy
54 D 172.16.0.12 Private busy
55 D 172.16.0.13 Private busy
56 D 172.16.0.14 Private busy
57 D 172.16.0.15 Private busy
58 D 172.16.0.16 Private busy
59 D 172.16.0.17 Private busy
60 D 172.16.0.18 Private busy
61 D 172.16.0.19 Private busy
62 D 172.16.0.20 Private busy
63 D 172.16.0.21 Private busy
64 D 172.16.0.22 Private busy
65 D 172.16.0.23 Private busy
66 D 172.16.0.24 Private busy
no mac addresses as you see.
Any suggestions?