Netgear SRX5308 SRX5308 Reference Manual - Page 80

Configuring and Enabling the DMZ Port, Reserved DHCP Client - reboot

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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308 Reference Manual To reserve an IP address, select Reserved (DHCP Client) from the IP Address Type drop-down list on the LAN Groups screen as described in "Adding PCs or Devices to the Network Database" on page 3-17 or on the Edit Groups and Hosts screen as described in "Editing PCs or Devices in the Network Database" on page 3-18. Note: The reserved address is not assigned until the next time the PC or device contacts the VPN firewall's DHCP server. Reboot the PC or device, or access its IP configuration and force a DHCP release and renew. Configuring and Enabling the DMZ Port The demilitarized zone (DMZ) is a network that, by default, has fewer firewall restrictions when compared to the LAN. The DMZ can be used to host servers (such as a Web server, FTP server, or email server) and provide public access to them. The fourth LAN port on the VPN firewall (the rightmost LAN port) can be dedicated as a hardware DMZ port to safely provide services to the Internet without compromising security on your LAN. By default, the DMZ port and both inbound and outbound DMZ traffic are disabled. Enabling the DMZ port and allowing traffic to and from the DMZ increases the traffic through the WAN ports. Using a DMZ port is also helpful with online games and videoconferencing applications that are incompatible with NAT. The VPN firewall is programmed to recognize some of these applications and to work correctly with them, but there are other applications that might not function well. In some cases, local PCs can run the application correctly if those PCs are used on the DMZ port. Note: A separate firewall security profile is provided for the DMZ port that is also physically independent of the standard firewall security component that is used for the LAN. The DMZ Setup screen lets you set up the DMZ port. It permits you to enable or disable the hardware DMZ port (LAN port 4, see "Front Panel" on page 1-7) and configure an IP address and subnet mask for the DMZ port. 3-20 v1.0, April 2010 LAN Configuration

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ProSafe Gigabit Quad WAN SSL VPN Firewall SRX5308 Reference Manual
3-20
LAN Configuration
v1.0, April 2010
To reserve an IP address, select
Reserved (DHCP Client)
from the IP Address Type drop-down
list on the LAN Groups screen as described in
“Adding PCs or Devices to the Network Database”
on page 3-17
or on the Edit Groups and Hosts screen as described in
“Editing PCs or Devices in
the Network Database” on page 3-18
.
Configuring and Enabling the DMZ Port
The demilitarized zone (DMZ) is a network that, by default, has fewer firewall restrictions when
compared to the LAN. The DMZ can be used to host servers (such as a Web server, FTP server, or
email server) and provide public access to them. The fourth LAN port on the VPN firewall (the
rightmost LAN port) can be dedicated as a hardware DMZ port to safely provide services to the
Internet without compromising security on your LAN. By default, the DMZ port and both inbound
and outbound DMZ traffic are disabled. Enabling the DMZ port and allowing traffic to and from
the DMZ increases the traffic through the WAN ports.
Using a DMZ port is also helpful with online games and videoconferencing applications that are
incompatible with NAT. The VPN firewall is programmed to recognize some of these applications
and to work correctly with them, but there are other applications that might not function well. In
some cases, local PCs can run the application correctly if those PCs are used on the DMZ port.
The DMZ Setup screen lets you set up the DMZ port. It permits you to enable or disable the
hardware DMZ port (LAN port 4, see
“Front Panel” on page 1-7
) and configure an IP address and
subnet mask for the DMZ port.
Note:
The reserved address is not assigned until the next time the PC or device contacts
the VPN firewall’s DHCP server. Reboot the PC or device, or access its IP
configuration and force a DHCP release and renew.
Note:
A separate firewall security profile is provided for the DMZ port that is also
physically independent of the standard firewall security component that is used for
the LAN.