Netgear FVS336Gv2 – ProSafe Dual WAN Gigabit Firewall with SSL & IPSec VPN 참조 매뉴얼

You do not need to reserve an IP address for a computer in the DHCP server. All IP 
address assignments made by the DHCP server are maintained until the computer or 
device is removed from the network database, either by expiration (inactive for a long 
time) or by you.

You do not need to use a fixed IP address on a computer. Because the IP addresses that 
are allocated by the DHCP server never change, you do not need to assign a fixed IP 
address to a computer to ensure that it always has the same IP address. 

A computer is identified by its MAC address—not its IP address. The network database 

uses the MAC address to identify each computer or device. Therefore, changing a 
computer’s IP address does not affect any restrictions applied to that computer. 

You can assign control over computers to groups and individuals:

You can assign computers to groups (see 

You can select groups that are allowed access to URLs that you have blocked for 
other groups, or the other way around, block access to URLs that you have allowed 
access to for groups (see 

306).

You can create firewall rules to apply to a single computer (see 

312). Because the MAC address is used to identify each computer, 

users cannot avoid these restrictions by changing their IP address.

When you specify a reserved IP address for a device on the LAN and bind that IP address to 
the MAC address of the device, that device always receives the same IP address each time it 
accesses the VPN firewall’s DHCP server. Assign reserved IP addresses to servers and 
access points that require permanent IP address settings. 

A reserved IP address must be outside of the DHCP server pool. A reserved address is not 

assigned until the next time the device contacts the VPN firewall’s DHCP server. You can 
force the device to contact the VPN firewall’s DHCP server by rebooting the device or by 
releasing and renewing the DHCP connection of the device.

316 and 

You can view the network database, manually add or remove database entries, and change 
database entries.

The following sections provide information about managing the network database: