Security > Firewall - Linksys WRT350N - Wireless-N Gigabit Router User Manual

Chapter 3
DTIM Interval This value, between 1 and 255, indicates
the interval of the Delivery Traffic Indication Message
(DTIM). A DTIM field is a countdown field informing
clients of the next window for listening to broadcast
and multicast messages. When the Router has buffered
broadcast or multicast messages for associated clients, it
sends the next DTIM with a DTIM Interval value. Its clients
hear the beacons and awaken to receive the broadcast
and multicast messages. The default value is 1.
Fragmentation Threshold
maximum size for a packet before data is fragmented
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 value, 2346, is
recommended. If a network packet is smaller than the
preset RTS threshold size, the RTS/CTS mechanism will
not be enabled. The Router 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. In most
cases, keep its default value of 2346.
Click Save Settings to apply your changes, or click Cancel
Changes to cancel your changes. For more information,
click Help.
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
Wireless-N Gigabit Router with Storage Link
This value specifies the
Advanced Configuration
Firewall
SPI Firewall Protection A firewall enhances network
security and uses Stateful Packet Inspection (SPI) for more
detailed review of data packets entering your network.
Select Enabled to use a firewall, or Disabled to disable it.
Internet Filters
Filter Anonymous Internet Requests
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
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. Select
Enabled to filter multicasting, or Disabled to disable this
feature.
Filter Internet NAT Redirection
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.
Web Filters
Proxy Use of WAN proxy servers may compromise the
Gateway's security. Denying Filter Proxy will disable access
to any WAN proxy servers. Select Enable to enable proxy
filtering.
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
Enable to enable Java filtering.
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 Enable to enable ActiveX filtering.
Cookies
A cookie is data stored on your computer and
used by Internet sites when you interact with them. Select
Enable to enable cookie filtering.
When you have finished making changes to this screen,
click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes.
For more information, click Help.
This feature
allows for multiple
This feature uses
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