Reference Manual for the ProSafe VPN Firewall 25 with 4 Gigabit LAN and Dual WAN Ports

Figure 8-10: Network Database screen

The Network Database is an automatically-maintained list of all known PCs and network devices. PCs and devices become known by the following methods:

DHCP Client Requests—By default, the DHCP server in this Router is enabled, and will accept and respond to DHCP client requests from PCs and other network devices. These requests also generate an entry in the Network Database. Because of this, leaving the DHCP Server feature (on the LAN screen) enabled is strongly recommended.

Scanning the Network—The local network is scanned using standard methods such as arp. This will detect active devices which are not DHCP clients. However, sometimes the name of the PC or device cannot be accurately determined and will be shown as Unknown.

The Known PCs and Devices table lists all current entries in the Network Database. For each PC or device, the following data is displayed.

Table 8-1.

Known PCs and Devices table

 

 

 

 

 

Item

 

Description

 

 

 

 

Name

 

The name of the PC or device. Sometimes, this can not be determined, and will be

 

 

listed as Unknown. In this case, you can edit the entry to add a meaningful name.

 

 

 

IP Address

 

The current IP address. For DHCP clients, where the IP address is allocated by the

 

 

DHCP Server in this device, this IP address will not change. Where the IP address is

 

 

set on the PC (as a fixed IP address), you may need to update this entry manually if

 

 

the IP address on the PC is changed.

 

MAC Address

 

The MAC address of the PC. The MAC address is a low-level network identifier

 

 

 

which is fixed at manufacture.

 

Group

 

Each PC or device must be in a single group. The Group column indicates which

 

 

group each entry is in. By default, all entries are in the Default group.

 

 

 

 

 

Router and Network Management

8-21

202-10085-01, March 2005

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NETGEAR FVS124G manual Network Database screen, Known PCs and Devices table