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High Performance Wireless-N Router
Linksys E3000 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 feature
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 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. Select this option to enable the filter.
Filter Internet NAT Redirection This feature 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.
Filter IDENT (Port 113) This feature keeps port 113 from
being scanned by devices outside of your local network.
Select this option to enable the filter.
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 feature 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 feature 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
feature 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 feature 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 VPN
tunnels using IPSec, L2TP, or PPTP 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.
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.
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.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.