dhcpd problem in 3.6 snapshot

[Didier Wiroth <didier_(_dot_)_wiroth_(_at_)_mcesr_(_dot_)_etat_(_dot_)_lu>]

Hi,

I've upgraded to the latest snapshot (because I had a problem with my soekris box).

When I try to launch dhcpd via rc.conf or via command line it doesn't work, .. actually it doesn't work at all.

I tried these methods
1a) having dhcpd_flags="" 
1b) in dhcpd.interfaces my interface "sis0"

or 
2a) touch /var/db/dhcpd.leases
2b) dhcpd -df -q sis0

My dhcpd.conf contains:
shared-network LOCAL-NET {
        option  domain-name "internal.local";
        option  domain-name-servers 172.16.43.1;
        option  routers 172.16.43.1;
        option  broadcast-address 172.16.43.255;

        subnet 172.16.43.0 netmask 255.255.255.0 {
                range 172.16.43.15 172.16.43.40;
        }
}

Here we can see that dhcpd runs:
_dhcp    31357  0.0  0.5   220   644 00  I+     5:51PM    0:00.05 dhcpd -df -q sis0

But here we can see it doesn't listen to an interface (netstat -anf inet):
tcp        0      0  127.0.0.1.587          *.*                    LISTEN
tcp        0      0  127.0.0.1.25           *.*                    LISTEN
tcp        0      0  172.16.43.1.22         *.*                    LISTEN
tcp        0      0  127.0.0.1.8021         *.*                    LISTEN
tcp        0      0  127.0.0.1.953          *.*                    LISTEN
tcp        0      0  172.16.43.1.53         *.*                    LISTEN
udp        0      0  127.0.0.1.512          *.*
udp        0      0  *.35290                *.*
udp        0      0  172.16.43.1.53         *.*
udp        0      0  *.514

There is:
1) no dhcpd related message in /var/log/messages, 
2) there isn't any pf rule blocking the daemon from running on the interface
3) there are no messages on the console.

The snapshot is from 17.09.
What can I try?
Thx a lot and sorry for the long post!