key conflict message for create host by Omapi

[Graham Clinch]

On 21/10/2015 08:13, Simon Hobson wrote:
> Clodoaldo de Borba Lambiase <clodoaldo at cpd.ufrgs.br> wrote:
> 
>> I'm trying to enable duplicate MACs in different subnets for ISC DHCP- 4.3.3 with OMAPI host entries. I have two IPs with the same MAC address in different subnets.
> 
> It sounds like you are trying to do via OMAPI the equivalent of this in the config file
> 
> host "blah1" { hardware ethernet aa:bb:cc:dd:ff ; ip address 192.168.1.123 ; }
> host "blah2" { hardware ethernet aa:bb:cc:dd:ff ; ip address 192.168.2.123 ; }
> 
> IIRC this doesn't work.

Drifting gently away from the original request, just noting that
multiple host records (in different subnets) with the same hardware
address *does* work (at least in 4.2) when configured through the
configuration files.  I've not tried it via OMAPI.

=-=-=
subnet 148.88.141.0 netmask 255.255.255.0 {
    option routers 148.88.141.1;
}

# static_allocation_id=18460
host 148.88.141.167 {
    fixed-address 148.88.141.167;
    hardware ethernet 00:13:44:00:05:0c;
}

[...]

subnet 148.88.186.0 netmask 255.255.254.0 {
    option routers 148.88.186.1;
}

# static_allocation_id=24416
host 148.88.186.71 {
    fixed-address 148.88.186.71;
    hardware ethernet 00:13:44:00:05:0c;
}
=-=-=

>From a cursory skim of server/omapi.c, it does appear that the omapi
server tries to find any lease with the same hardware address and
doesn't restrict it to being within the same subnet.

Graham