Configuring basic FortiGate Voice-80C network and UTM settings Example FortiGate Voice branch office configuration
FortiGate Voice Version 4.0 Administration Guide
16 01-400-112851-20100127
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Configure other network interface settings as required and select OK.
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-80C internal interface as their DNS server IP address.
The procedure “To configure the FortiGate Voice-80C to be a DHCP server for the
internal network” on page 16 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:
11 Select OK.
To configure the FortiGate Voice-80C 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-80C 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-
80C 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.
Addressing Mode Manual
IP/Netmask 192.168.10.10/255.255.255.0
SIP Traffic Select Enable
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.
Destination IP/Mask 0.0.0.0/0.0.0.0
Device wan1
Gateway Enter the IP address of the default gateway provided by your ISP.
Distance 10
Name Add a name for the DHCP server if you are adding a new one.
Enable Select
Type Regular
IP Range 172.20.120.110 - 172.20.120.210
Network Mask 255.255.255.0
Default Gateway 172.20.120.10
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