Fortinet FortiGate Voice 4.0 MR1 Administration Manual page 20

Configuring basic FortiGate Voice network and UTM settings
20
Addressing Mode
IP/Netmask
SIP Traffic
Configure other network interface settings as required and select OK.
Note: You can also set the Addressing mode to DHCP or PPPoE for the wan1 interface
depending on the requirements of your ISP. In the example the wan1 interface has a static
IP address.
5 Go to System > Network > Options.
6 Add the IP addresses of the primary and secondary DNS servers used by the branch
office provided by your ISP.
7 Selected internal for Enable DNS forwarding from so that users on the internal network
can use the FortiGate Voice internal interface as their DNS server IP address.
The procedure "To configure the FortiGate Voice to be a DHCP server for the internal
network" on page 20 describes how to configure the FortiGate DHCP server to
configure PCs on the internal network to use the FortiGate Voice internal interface as a
DNS server.
8 Select Apply.
9 Go to Router > Static > Static Route.
10 Edit the default static route and configure the following settings:
Destination IP/Mask
Device
Gateway
Distance
11 Select OK.
To configure the FortiGate Voice to be a DHCP server for the internal network
Use this procedure to add a new DHCP server for the internal network or to change the
configuration of the default FortiGateVoice DHCP server. The DHCP server will give PCs
on the Internal network IP addresses in the range 172.20.120.110 to 172.20.120.210 and
set their default gateway and DNS server to the IP address of the FortiGate Voice internal
interface.
1 Go to System > DHCP > Service and select the expand arrow for the internal interface.
2 Select the Add DHCP Server icon for the internal interface.
If a DHCP server has already been added for the internal interface, select the Edit icon
to change its configuration.
3 Configure the following settings.
Name
Enable
Type
IP Range
Network Mask
Default Gateway
Example FortiGate Voice branch office configuration
Manual
192.168.10.10/255.255.255.0
Select Enable
0.0.0.0/0.0.0.0
wan1
Enter the IP address of the default gateway provided by your ISP.
10
Add a name for the DHCP server if you are adding a new one.
Select
Regular
172.20.120.110 - 172.20.120.210
255.255.255.0
172.20.120.10
FortiGate Voice Version 4.0 MR1 Administration Guide
01-410-112851-20100601
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