3Com 3CRWE554G72T User Guide - Page 50

Adding Fixed DHCP Mappings, MAC Address - The Media Access Control MAC address of

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50 CHAPTER 5: ROUTER CONFIGURATION ■ IP address - The Internet Protocol (IP) address issued to the client machine. ■ Host Name - The client machine's host name, if configured. ■ MAC Address - The Media Access Control (MAC) address of the client's network card. ■ Client Type - Whether the client is connected to the Router by wired or wireless connection. ■ Fix - This box is checked if the IP address is fixed to the MAC address of the client's network card. Clients that have fixed addresses will get the same IP address each time they connect. Check the box to fix an association. Clear the check box to remove the fixed association. As you connect more devices, the client list will grow to a maximum number of 253 clients. The release button allows the lease time for the IP address that has been issued to a device to be cleared. The lease time is set at 12 hours. If a PC has been switched off, using the Release button would allow the 12 hour lease time to be cleared. The IP address would then be available for another device if there were no other IP addresses available. Adding Fixed DHCP Mappings You can add Fixed Mappings so that the Router allocates an IP address chosen by you when it encounters a particular device. Click New to display the DHCP Fixed Mapping Setup screen, as shown in Figure 34

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50
C
HAPTER
5: R
OUTER
C
ONFIGURATION
■
IP address — The Internet Protocol (IP) address issued to the client
machine.
■
Host Name — The client machine’s host name, if configured.
■
MAC Address — The Media Access Control (MAC) address of the
client’s network card.
■
Client Type — Whether the client is connected to the Router by wired
or wireless connection.
■
Fix — This box is checked if the IP address is fixed to the MAC address
of the client’s network card. Clients that have fixed addresses will get
the same IP address each time they connect.
Check the box to fix an association. Clear the check box to remove the
fixed association.
As you connect more devices, the client list will grow to a maximum
number of 253 clients.
The
release
button allows the lease time for the IP address that has been
issued to a device to be cleared. The lease time is set at 12 hours. If a PC
has been switched off, using the Release button would allow the 12 hour
lease time to be cleared. The IP address would then be available for
another device if there were no other IP addresses available.
Adding Fixed DHCP Mappings
You can add Fixed Mappings so that the Router allocates an IP address
chosen by you when it encounters a particular device.
Click New to display the DHCP Fixed Mapping Setup screen, as shown in
Figure 34