Netgear SRXN3205 SRXN3205 Reference Manual - Page 44

Configuring DHCP Address Reservation, Managing Groups and Hosts (LAN Groups), Enable DHCP server - reboot

Page 44 highlights

ProSafe Wireless-N VPN Firewall SRXN3205 Reference Manual addresses will be assigned to the attached PCs from a pool of addresses specified in this menu. Each pool address is tested before it is assigned to avoid duplicate addresses on the LAN. Specify the pool of IP addresses to be assigned by setting the Starting IP Address and Ending IP Address. These addresses should be part of the same IP address subnet as the firewall's LAN IP address. Using the default addressing scheme, you would define a range between 192.168.1.2 and 192.168.1.100, although you may wish to save part of the range for devices with fixed addresses. If another device on your network will be the DHCP server, or if you will manually configure the network settings of all of your computers, clear the Enable DHCP server radio box by clicking the Disable DHCP Server radio box. Otherwise, leave it checked. Configuring DHCP Address Reservation A computer (or device) will always receive the same IP address, if you specify a reserved IP address for the computer (or device) on the LAN (based on the MAC address of the device), each time it accesses the firewall's DHCP server. Reserved IP addresses should be assigned to servers or access points that require permanent IP address settings. The Reserved IP address that you select must be outside of the DHCP Server pool. To reserve an IP address, manually enter the device in the LAN Groups tab, specifying Reserved (DHCP Client), as described in "Adding Devices to the LAN Groups Database" on page 3-6. Note: The reserved address will not be assigned until the next time the PC contacts the firewall's DHCP server. Reboot the PC or access its IP configuration and force a DHCP release and renew. Managing Groups and Hosts (LAN Groups) The Known PCs and Devices table in the LAN Groups menu contains a list of all known PCs and network devices that are assigned dynamic IP addresses by the firewall, or have been discovered by other means. Collectively, these entries make up the LAN Groups Database. The LAN Groups Database is updated by these methods: • DHCP Client Requests. By default, the DHCP server in this firewall 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 LAN Groups Database. Because of this, leaving the DHCP server feature (LAN Setup tab) enabled is strongly recommended. 3-4 LAN Configuration v1.0, October 2008

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ProSafe Wireless-N VPN Firewall SRXN3205 Reference Manual
3-4
LAN Configuration
v1.0, October 2008
addresses will be assigned to the attached PCs from a pool of addresses specified in this menu.
Each pool address is tested before it is assigned to avoid duplicate addresses on the LAN.
Specify the pool of IP addresses to be assigned by setting the Starting IP Address and Ending IP
Address. These addresses should be part of the same IP address subnet as the firewall’s LAN IP
address. Using the default addressing scheme, you would define a range between 192.168.1.2 and
192.168.1.100, although you may wish to save part of the range for devices with fixed addresses.
If another device on your network will be the DHCP server, or if you will manually configure the
network settings of all of your computers, clear the
Enable DHCP server
radio box by clicking
the
Disable DHCP Server
radio box. Otherwise, leave it checked.
Configuring DHCP Address Reservation
A computer (or device) will always receive the same IP address, if you specify a reserved IP
address for the computer (or device) on the LAN (based on the MAC address of the device), each
time it accesses the firewall’s DHCP server. Reserved IP addresses should be assigned to servers
or access points that require permanent IP address settings. The Reserved IP address that you
select must be outside of the DHCP Server pool.
To reserve an IP address, manually enter the device in the
LAN Groups
tab, specifying
Reserved
(DHCP Client)
,
as described in
“Adding Devices to the LAN Groups Database” on page 3-6
.
Managing Groups and Hosts (LAN Groups)
The
Known PCs and Devices
table in the
LAN Groups
menu contains a list of all known PCs
and network devices that are assigned dynamic IP addresses by the firewall, or have been
discovered by other means. Collectively, these entries make up the LAN Groups Database.
The LAN Groups Database is updated by these methods:
DHCP Client Requests
. By default, the DHCP server in this firewall 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 LAN Groups Database. Because of this, leaving the
DHCP server feature (LAN Setup tab) enabled is strongly recommended.
Note:
The reserved address will not be assigned until the next time the PC contacts the
firewall’s DHCP server. Reboot the PC or access its IP configuration and force a
DHCP release and renew.