1. Home
    2. /
  2. Manuals
    3. /
  3. Linksys
    4. /
  4. WRT55AGv2
    5. /
  5. 7
Page 31 / 83 Scroll up to view Page 26 - 30
25
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Wireless Tab - Advanced Wireless Settings
Dual-Band Wireless A+G Broadband Router
Router’s ability to catch all Wireless-G transmissions but will severely decrease performance. If you do not want
to use CTS Protection Mode at all, select
Disabled
.
Frame Burst Mode
. Enabling this option should provide your network with greater performance, depending on
the manufacturer of your wireless products. If you are not sure how to use this option, keep the default,
Enabled
.
Beacon Interval
. The default value is
100
. The Beacon Interval value indicates the frequency interval of the
beacon. A beacon is a packet broadcast by the Router to synchronize the wireless network.
DTIM Interval
. This value 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
. This value specifies the 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,
2347
, 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. The RTS Threshold value should remain at its default value
of
2347
.
Change these settings as described here and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes. Help information is shown on the right-hand side of the screen. For additional
information, click
More
.
Page 32 / 83
26
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Security Tab - Firewall
Dual-Band Wireless A+G Broadband Router
The Security Tab - Firewall
The
Firewall
screen offers the Block Anonymous Internet Requests feature. The use of this feature enhances the
security of your network.
Firewall
Block Anonymous Requests
. When enabled, this feature keeps your network from being “pinged,” or detected,
by other Internet users. It also reinforces your network security by hiding your network ports. Both functions of
this feature make it more difficult for outside users to work their way into your network. This feature is enabled
by default. Select
Disabled
to allow anonymous Internet requests.
Change this setting as described here and click the
Save Settings
button to apply your change or
Cancel
Changes
to cancel your change. Help information is shown on the right-hand side of the screen.
The Security Tab - VPN Passthrough
Use the settings on this tab to allow VPN tunnels using IPSec, L2TP, or PPTP protocols to pass through the
Router’s firewall.
VPN Passthrough
IPSec Passthrough
. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange
of packets at the IP layer.
IPSec Pass-Through is enabled by default. To disable IPSec Passthrough, select
Disabled
.
L2TP Passthrough
. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the
Internet on the Layer 2 level. L2TP Pass-Through is enabled by default. To disable L2TP Passthrough, select
Disabled
.
PPTP Passthrough
. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be
tunneled through an IP network. PPTP Pass-Through is enabled by default. To disable PPTP Passthrough, select
Disabled
.
Change these settings as described here and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes. Help information is shown on the right-hand side of the screen. For additional
information, click
More
.
Figure 5-16: Security Tab - Firewall
Figure 5-17: Security Tab - VPN Passthrough
ipsec
: a VPN protocol used to implement
secure exchange of packets at the IP layer.
pptp
: a VPN protocol that allows the Point to Point
Protocol (PPP) to be tunneled through an IP network.
This protocol is also used as a type of broadband
connection in Europe.
vpn
: a security measure to protect data as it leaves
one network and goes to another over the Internet.
Page 33 / 83
27
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Access Restrictions Tab - Internet Access Policy
Dual-Band Wireless A+G Broadband Router
Figure 5-18: Access Restrictions Tab - Internet
Access Policy
Figure 5-19: Summary
The Access Restrictions Tab - Internet Access Policy
The
Internet Access Policy
screen allows you to block or allow specific kinds of Internet usage and traffic, such as
Internet access, designated applications, websites, and inbound traffic during specific days and times.
Internet Access Policy
Access Policy
. Access can be managed by a policy. Use the settings on this screen to establish an access policy
(after the
Save Settings
button is clicked). Selecting a policy from the drop-down menu will display that policy’s
settings. To delete a policy, select that policy’s number and click the
Delete This Policy
button. To view all the
policies, click the
Summary
button.
On the
Summary
screen, the policies are listed with the following information: No., Policy Name, Access, Days,
Time, and status (Enabled). You can change the type of access, days, and times of a policy. To activate a policy,
click the
Enabled
checkbox. To delete a policy, click its
Delete
button. Click the
Save Settings
button to save
your changes, or click the
Cancel Changes
button to cancel your changes. To return to the Internet Access Policy
tab, click the
Close
button. To view the list of PCs for a specific policy, click the
Edit List
button.
On the
List of PCs
screen, you can select a PC by MAC Address or IP Address. You can also enter a range of IP
Addresses if you want this policy to affect a group of PCs. After making your changes, click the
Save Settings
button to apply your changes or
Cancel Changes
to cancel your changes. Click the
Close
button to exit this
screen.
To create an Internet Access policy:
1.
Select a number from the
Access Policy
drop-down menu.
2.
Enter a Policy Name in the field provided.
3.
To enable this policy, select
Enabled
from the
Status
drop-down menu.
Page 34 / 83
28
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Access Restrictions Tab - Internet Access Policy
Dual-Band Wireless A+G Broadband Router
4.
Click the
Edit List
button to select which PCs will be affected by the policy. The
List of PCs
screen will appear.
You can select a PC by MAC Address or IP Address. You can also enter a range of IP Addresses if you want this
policy to affect a group of PCs. After making your changes, click the
Save Settings
button to apply your
changes or
Cancel Changes
to cancel your changes. Then click the
Close
button.
5.
Click the appropriate option,
Deny
or
Allow
, depending on whether you want to block or allow Internet access
for the PCs you listed on the
List of PCs
screen.
6.
Decide which days and what times you want this policy to be enforced. Select the individual days during
which the policy will be in effect, or select
Everyday
. Then enter a range of hours and minutes during which
the policy will be in effect, or select
24 Hours
.
7.
You can filter access to various applications accessed over the Internet, such as FTP or telnet, by selecting up
to three applications from the drop-down menus next to
Blocked Application Port
.
Each drop-down menu offers a choice of ten preset applications (select
None
if you do not want to use any of
the applications). For the preset applications you select, the appropriate range of ports will automatically be
displayed.
If the application you want to block is not listed or you want to edit an application’s settings, then select
Custom
from the drop-down menu. Enter the port range you want to block. Then select its protocol(s),
TCP
and/or
UDP
.
8.
Click the
Save Settings
button to save the policy’s settings. To cancel the policy’s settings, click the
Cancel
Changes
button.
Help information is shown on the right-hand side of the screen. For additional information, click
More
.
Figure 5-20: List of PCs
tcp
: a network protocol for transmitting
data that requires acknowledgement from
the recipient of data sent.
udp
: a network protocol for transmitting
data that does not require
acknowledgement from the recipient of
the data that is sent.
Page 35 / 83
29
Chapter 5: Configuring the Dual-Band Wireless A+G Broadband Router
The Applications and Gaming Tab - Port Range Forwarding
Dual-Band Wireless A+G Broadband Router
The Applications and Gaming Tab - Port Range Forwarding
The
Port Range Forwarding
screen allows you to set up public services on your network, such as web servers, ftp
servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any
applications that use Internet access to perform functions such as videoconferencing or online gaming. Some
Internet applications may not require any forwarding.)
Before using forwarding, you should assign static IP addresses to the designated PCs.
Port Range Forwarding
To forward a port, enter the information on each line for the criteria required. Descriptions of each criteria are
described here.
Application Name
. Each drop-down menu offers a choice of ten preset applications (select
None
if you do not
want to use any of the preset applications). Select up to five preset applications. For custom applications, enter
the name of your application in one of the available fields.
The preset applications are among the most widely used Internet applications. They include the following:
FTP
(File Transfer Protocol). A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For
example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the
web server using FTP.
Telnet
. A terminal emulation protocol commonly used on Internet and TCP/IP-based networks. It allows a user at
a terminal or computer to log onto a remote device and run a program.
SMTP
(Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that
defines the message format and the message transfer agent (MTA), which stores and forwards the mail.
DNS
(Domain Name System). The way that Internet domain names are located and translated into IP addresses. A
domain name is a meaningful and easy-to-remember “handle” for an Internet address.
TFTP
(Trivial File Transfer Protocol). A version of the TCP/IP FTP protocol that has no directory or password
capability.
Finger
. A UNIX command widely used on the Internet to find out information about a particular user, such as a
telephone number, whether the user is currently logged on, and the last time the user was logged on. The person
being “fingered” must have placed his or her profile on the system in order for the information to be available.
Fingering requires entering the full user@domain address.
Figure 5-21: Applications and Gaming Tab - Port
Range Forwarding

Rate

4 / 5 based on 1 vote.

Popular Linksys Models

Famous Router IPs
Famous Router Companies
Bookmark Our Site

Press Ctrl + D to add this site to your favorites!

Share
Top