User`s guide

2.6 DHCP Server Conﬁguration

• DNS server — IP address of the ﬁrewall interface that is connected to the local network

(192.168.1.1 — the same as the default gateway). The Kerio Control’s DNS forwarder

will be used as the primary DNS server. The forwarder will procure correct forwarding

of requests between the company’s oﬃces and to the Internet.

• Domain — local DNS domain (identical with the Active Directory domain, i.e.

company.com).

Now add a reservation for the network printer. The address you reserve need not necessarily

belong to the scope described above, however, it must belong to the speciﬁed network (in

this example the 192.168.1.3 address is reserved). You need to know the hardware (MAC)

address of the printing machine to make the reservation.

Hints:

1. DHCP server can be conﬁgured automatically in accordance with LAN interface

parameters. Automatic conﬁguration of DHCP server can now be enabled only in the

Kerio Control Administration web interface.

2. Do not make the reservation manually unless you know the MAC address of your

printing machine. Run the DHCP server and connect the machine to the network. An

IP address from the formerly deﬁned scope (see above) will be assigned to the printing

machine. In the list of leased addresses, mark this IP address and click on Reserve. This

opens a dialog for IP address reservation with the corresponding MAC address already

predeﬁned. Change reserved IP address to the desired one (192.168.1.3), edit the

description and click on OK. Restart your printing machine. The appropriate IP address

will be assigned to the printing machine by the DHCP server after the restart.

Notes:

1. Do not enable (allow) the DHCP server unless all desired scopes and reservations are made

or unless you need to determine a client’s MAC address (see above).

2. You can also use another DHCP server to detect settings of your network equipment

automatically. Set the ﬁrewall computer’s internal IP address (192.168.1.1) as the default

gateway and DNS server in parameters for this range on the DHCP server.

In this case it is necessary to keep the DHCP server in Kerio Control disabled!