Security > firewall, Security > vpn passthrough, Security > firewall security > vpn passthrough – Linksys WAG160N User Manual

Page 19: Advanced configuration, Firewall, Filters, Block wan requests, Vpn passthrough

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Chapter4

Advanced Configuration



Wreless-N ADSL2+ Gateway

into multiple packets. If you experience a high packet

error rate, you may slightly increase the Fragmentation

Threshold. Setting the Fragmentation Threshold too low

may result in poor network performance. Only minor

reduction of the default value is recommended. In most

cases, it should remain at its default value of 2346.

RTS Threshold

Should you encounter inconsistent

data flow, only minor reduction of the default, 2346, is

recommended. If a network packet is smaller than the

preset RTS threshold size, the RTS/CTS mechanism will

not be enabled. The Gateway sends Request to Send (RTS)

frames to a particular receiving station and negotiates

the sending of a data frame. After receiving an RTS, the

wireless station responds with a Clear to Send (CTS) frame

to acknowledge the right to begin transmission. The RTS

Threshold value should remain at its default value of

2346.
Click Save Settngs to apply your changes, or click Cancel

Changes to cancel your changes.

Security > Firewall

The Firewall screen is used to configure a firewall that

can filter out various types of unwanted traffic on the

Gateway’s local network.

Security > Firewall

Firewall

SPI Frewall Protecton

To use firewall protection,

keep the default selection, Enable. To turn off firewall

protection, select Dsable.

Filters

Flter Proxy

Use of WAN proxy servers may compromise

the Gateway’s security. Denying Proxy will disable access

to any WAN proxy servers. Select Flter Proxy to enable

proxy filtering. Deselect the feature to allow proxy access.

Flter Java Applets

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 Flter Java Applets to enable Java

filtering. Deselect the feature to allow Java usage.

Flter Cookes

A cookie is data stored on your computer

and used by Internet sites when you interact with them.

Select Flter Cookes to filter cookies. Deselect the feature

to allow cookie usage.

Flter ActveX

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 Flter ActveX to enable ActiveX filtering.

Deselect the feature to allow ActiveX usage.

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.
Click Save Settngs to apply your changes, or click Cancel

Changes to cancel your changes.

Security > VPN Passthrough

The VPN  Passthrough screen allows you to enable VPN

tunnels using IPSec, PPTP, or L2TP protocols to pass through

the Gateway’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 Gateway, 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 Gateway, 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 Gateway, keep the default, Enable.
Click Save Settngs to apply your changes, or click Cancel

Changes to cancel your changes.

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