Fortinet FortiDDoS, Installation Manual

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Installation & Initial Configuration Assigning Virtual Identifiers (VIDs) to protect systems
FortiDDoS v3.2 Installation Guide
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These servers/networks may be specific to individual departments, or may be used for
different applications such as web hosting, E-mail or DNS queries.
Your FortiDDoS device is pre-configured to accommodate either 1, 4, or 8 VIDs. Each
VID can be measured against a unique set of threshold parameters that are
independent of other VIDs. This is shown in
Figure 12 Not all VIDs need to be
configured; you may leave blank those that you do not need.
Figure 12: Network with FortiDDoS protecting multiple VIDs
Configuring VIDs
To configure a VID:
1 From the main menu, click Configure > Global > VIDs
2 Simply enter the following information:
• Subnet ID
This ID is used to for subnet-based reporting. Administrator can generate attack
event report for individual subnets.
You can enter up to 512 subnets. Please refer to the datasheet of your
appliance.
• IP Address
This corresponds to the IP address of the subnet you want to add to a VID.
• Netmask
This corresponds to the Netmask of the subnet you want to add to a VID.
Note: It is recommended that you use a single network switch between the FortiDDoS device
and protected systems. The goal is to avoid inserting any potential source of attack traffic
that does not pass through the device.