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Advanced Wireless-N Router
Linksys E2100L
Chapter 3: Advanced Configuration
Security > Firewall
The
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
SPI Firewall Protection
To use firewall protection,
keep the default selection, Enabled . To turn off firewall
protection, select Disabled .
Internet Filters
Filter Anonymous Internet Requests
This option makes
it more difficult for outside users to work their way into
your network . This option is enabled by default . Disable it
to allow anonymous Internet requests .
Filter Multicast
The multicasting feature 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 . Select this option to enable the
filter . This option is disabled by default .
Filter Internet NAT Redirection
This option is used to
prevent a local computer from using a URL or Internet
address to access the local server . Select this option to
enable the filter . This option is disabled by default .
Filter IDENT (Port 113)
The Filter IDENT (Identification)
option keeps port 113 from being scanned by devices
outside of your local network . This option is enabled by
default . Disable it to allow port 113 to be scanned .
Web Filters
Proxy
Use of WAN proxy servers may compromise the
Gateway’s security . Denying Proxy will disable access to
any WAN proxy servers . Select this option to enable proxy
filtering . Deselect the option to allow proxy access .
Java
Java is a programming language for websites . If you
deny Java, you run the risk of not having access to Internet
sites created using this programming language . Select
this option to enable Java filtering . Deselect the option to
allow Java usage .
ActiveX
ActiveX is a programming language for websites .
If you deny ActiveX, you run the risk of not having access to
Internet sites created using this programming language .
Select this option to enable ActiveX filtering . Deselect the
option to allow ActiveX usage .
Cookies
A cookie is data stored on your computer and
used by Internet sites when you interact with them . Select
this option to filter cookies . Deselect the option to allow
cookie usage .
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes .
Security > VPN Passthrough
The
VPN Passthrough
screen allows you to enable Virtual
Private Network (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, Enabled .
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, Enabled .
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, Enabled .
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes .
