Linksys WRT54G2 User Manual

Chapter 3
Advanced Configuration
15
Wireless-G Broadband Router
Security > Firewall
The Security > Firewall screen is used to configure a firewall
that can filter out various types of unwanted traffic on the
Router’s local network.
Security > Firewall
Firewall
Firewall Protection To use firewall protection, keep the
default selection, Enable. To turn off firewall protection,
select Disable.
Block WAN Requests
Block Anonymous Internet Requests This feature
makes it more difficult for outside users to work their
way into your network. This feature is selected by default.
Deselect the feature to allow anonymous Internet
requests .
Filter Multicast Multicasting allows for multiple
transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP
multicast packets to be forwarded to the appropriate
computers. This feature is selected by default. Deselect
this feature to disable it.
Filter Internet NAT Redirection This feature uses
port forwarding to block access to local servers from
local networked computers. Select Filter Internet NAT
Redirection to filter Internet NAT redirection. This feature
is not selected by default.
Filter IDENT (Port 113) This feature keeps port 113 from
being scanned by devices outside of your local network.
This feature is selected by default. Deselect this feature to
disable it.
Click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes.
Security > VPN Passthrough
The Security > VPN Passthrough screen allows you to enable
VPN tunnels using IPSec, PPTP, or L2TP protocols to pass
through the Router’s firewall.
Security > VPN Passthrough
VPN Passthrough
IPSec Passthrough Internet Protocol Security (IPSec) is
a suite of protocols used to implement secure exchange
of packets at the IP layer. To allow IPSec tunnels to pass
through the Router, keep the default, Enable.
PPTP Passthrough Point-to-Point Tunneling Protocol
(PPTP) allows the Point-to-Point Protocol (PPP) to be
tunneled through an IP network. To allow PPTP tunnels to
pass through the Router, keep the default, Enable.
L2TP Passthrough Layer 2 Tunneling Protocol is the
method used to enable Point-to-Point sessions via the
Internet on the Layer 2 level. To allow L2TP tunnels to pass
through the Router, keep the default, Enable.
Click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes.
Access Restrictions > Internet Access
The Access Restrictions > Internet Access screen allows you
to block or allow specific kinds of Internet usage and
traffic, such as Internet access, designated services, and
websites during specific days and times.

Linksys WRT54G2 Specifications

Ports & Interfaces

internet port	One 10/100 RJ-45 Port
LAN ports	Four 10/100 RJ-45 Switched Ports
power port	One Power Port

Power

power supply	External, 12V DC, 0.5A
RF power (EIRP)	18 dBm
operating voltage	12V DC

Operating Environment

operating temperature	32 to 104°F (0 to 40°C)
storage temperature	-4 to 140°F (-20 to 60°C)
operating humidity	10 to 85%, Noncondensing

Weight and Dimensions

dimensions	7.99" x 1.38" x 6.3" (203 x 35 x 160 mm)
weight	9.88 oz (0.28 kg)
number of antennas	2 Internal Antennas