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Page 26 / 108 Scroll up to view Page 21 - 25
WRT 1900AC
|
Setting Up: Advanced
23
Note:
If you select Wireless-N Only, you may need to temporarily change your network
settings to Mixed to provide access to guests without Wireless-N networking.
Split your traffic
The best way to improve your multimedia wireless performance is to split your
wireless traffic between your router’s bands (ranges of radio frequencies). Your
router supports the 2.4 GHz band and the 5 GHz band, and handles the two bands
as two separate wireless networks to manage the traffic.
The most common way to split wireless traffic is to use the 2.4 GHz band for basic
Internet tasks such as web browsing, email, and downloads, and use the 5 GHz
band for streaming multimedia.
Although the 2.4 GHz band may be more crowded with wireless traffic from your
neighbors, it’s fine for basic Internet traffic that is not time-sensitive such as
e-mail. Even though you are connected to your own wireless network, you are still
sharing air time with nearby networks. The 5 GHz band is much less crowded than
the 2.4 GHz band, so it’s ideal for streaming multimedia. The 5 GHz band has more
available channels, so it is more likely that you will have your own, interference-
free channel for your wireless network.
By default, your dual-band router uses the same network name on both the
2.4 GHz band and the 5 GHz band. The easiest way to segment your traffic is
to rename one of your wireless networks. With a separate, descriptive name, it
will be easy to connect to the right network.
Reconfigure your wireless network:
•
Log in to Linksys Smart Wi-Fi. (See “How to connect to Linksys Smart Wi-Fi” on
page ¶.)
•
Under
Router Settings
, click
Wireless
. The
Wireless
page opens to the
Wireless
tab.
Click
Edit
next to the network band you want to modify. Change any of the
settings.
•
Enabled
— Deselect to disable the network band.
•
Network name (SSID)
— You can provide a unique SSID for each band of your
network. The name must not exceed 32 characters.
•
Password
— You can provide a unique password for each band of your network.
•
Network mode
— Your choice depends upon the clients that will connect to your
network. If all of your devices are Wireless-N capable, you can select
Wireless-N
Only for either or both bands.
On the 2.4 GHz band, you can select from the following:
•
Mixed
•
Wireless-B/G/N Only
•
Wireless-B/G Only
•
Wireless-N Only
•
Wireless-G Only
•
Wireless-B Only
Page 27 / 108
WRT 1900AC
|
Setting Up: Advanced
24
On the 5 GHz band, you can select from the following:
•
Mixed
(default), which accepts connections from 802.11a or 802.11n clients
•
Wireless-N Only
(802.11n only)
•
Wireless-A/N Only
•
Wiresless-A Only
Security mode
— You can set up different security options for the 2.4 GHz and 5
GHz networks. If the security mode you select requires a passphrase, a
Password
field appears, and you must enter a password. You can select:
•
None (no security)
•
WEP
•
WPA Personal
•
WPA Enterprise
•
WPA2 Personal
•
WPA2 Enterprise
•
WPA2/WPA Mixed Personal
•
WPA2/WPA Mixed Enterprise
Tip:
Wireless-N networks should use the WPA2-Personal security mode for best
performance.
Channel width
— We recommend that you keep the default (Auto) setting for each
band. In Auto mode, the router and the network clients automatically switch to the
40 MHz
mode if the following happens:
Your wireless clients support the 40 MHz mode (sometimes called
Bonded
mode)
in which two 20 MHz channels are bonded together for better performance.
There is no adjacent interference.
With more available channels and less chance of interference on the 5 GHz band,
you have the option to force the 40 MHz mode.
On the 2.4 GHz band, you can select from the following:
•
Auto
(20 MHz or 40 Mhz)
•
20 MHz Only
On the 5 GHz band, you can select:
•
Auto
(automatically selects from the options below)
•
20 MHz Only
•
40 MHz Only
Channel
—Choose the operating channel for each band. Your router will automati-
cally select the channel with the least amount of interference if you leave the default
Auto
setting. We recommend keeping the default settings for both bands.
To save your changes, click
OK
.
HOW TO CONTROL ACCESS TO YOUR NETWORK
By default, setup enables industry-standard WPA (Wi-Fi Protected Access) security
using WPA2/WPA mixed mode. If you set up your wireless network manually and
have not enabled wireless security, your wireless network will be an open network
that almost anyone nearby with a Wi-Fi-enabled device could access.
If you choose not to use the built-in security features of your router, you can still
control access to your wireless network using MAC filtering. Every network device
has a unique, ´2-digit MAC (Media Access Control) address. Using MAC filtering,
you can allow only known MAC addresses, and therefore known devices, onto your
network. You can also exclude specific MAC addresses, denying them access to
your network.
Tip:
MAC filtering is not strong security. The best way to secure your network is to
use the router’s WPA2 security setting.
Example:
Because each MAC filtering configuration is unique, this simplified
example shows how to set up MAC filtering to allow only one device access to the
network.
Tip:
It is easier to select
Allow
to permit only known devices than to try to
Deny
(exclude) unknown devices.
Page 28 / 108
WRT 1900AC
|
Setting Up: Advanced
25
To set up MAC filtering to allow one device access to your network:
•
Log in to Linksys Smart Wi-Fi. (See “How to connect to Linksys Smart Wi-Fi” on
page ¶.)
•
Under
Router Settings
, click
Wireless
. The Wireless page will open.
•
Click the
MAC Filtering
tab.
•
Select Enabled next to MAC Filters, and select Allow access for ONLY the listed
MAC addresses.
•
Click
Add MAC Address
. Enter the MAC address into the
MAC Filter List
and
click
Save
.
HOW TO IMPROVE SECURITY USING THE BUILT³IN FIREWALL
By default, the firewall settings in your router work well in most home environ-
ments. You don't need to make changes. The SPI (Stateful Packet Inspection) fire-
wall is enabled by default, and anonymous Internet requests and IDENT requests
are filtered by default. All web filters are disabled, because enabling them may
cause problems for sites that depend on ActiveX controls, Java, or cookies.
If you decide to change your firewall settings, log in to Linksys Smart Wi-Fi.
(See “How to connect to Linksys Smart Wi-Fi” on page 7.) Under Router Set-
tings, click Security. The Security page will open to the Firewall tab.
You can now change the following settings:
Tip:
For more descriptions of each setting, click
Help
at the top of the screen.
Firewall:
•
SPI firewall protection
— This helps protect your local network from Internet
threats. This option is enabled by default. On some router models, this setting is
separated into IPv6 and IPv4 options so that each can be handled separately.
Caution:
To help protect your network, you should keep this option enabled.
Page 29 / 108
WRT 1900AC
|
Setting Up: Advanced
26
VPN Passthrough:
•
IPSec Passthrough
—
IPSec
(Internet Protocol Security) is a suite of protocols
used to implement secure exchange of packets at the IP layer. The VPN clients
on the local network can establish an IPSec VPN tunnel through the router. This
option is enabled by default.
•
PPTP Passthrough
—
PPTP
(Point-to-Point Tunneling Protocol) allows the PPP
(Point-to-Point Protocol) to be tunneled through an IP network. The VPN clients
on the local network can establish a PPTP VPN tunnel through the router. This
option is enabled by default.
•
L2TP Passthrough
—
L2TP
(Layer 2 Tunneling Protocol) enables point-to-point
sessions using the Internet on the Layer 2 level. The VPN clients on the local
network can establish an L2TP VPN tunnel through the router. This option is
enabled by default.
Internet filters:
Filter anonymous Internet requests
— This filter blocks Internet requests from
unknown sources such as ping requests. This option is enabled by default.
•
Filter multicast
— Multicasting allows a single transmission to simultaneously
reach specific recipients within your local network. Select this option to block
multicasting. This option is disabled by default.
•
Filter Internet NAT redirection
— This filter prevents a local computer from
using a URL or Internet IP address to access the local server. Select this option
to enable the filter. This option is disabled by default. On some router models, this
setting applies to IPv4 Internet only.
•
Filter ident (Port 133)
— This filter prevents port 133 from being scanned by
devices from the Internet. This option is enabled by default.
Click
Save
.
CHANGING IPVµ FIREWALL SETTINGS
On some router models, the IPv6 firewall lets you customize IPv6 port services
for applications. When users send these types of requests to your network via the
Internet, the router will allow those requests to the appropriate computers.
Note:
To use your router’s IPv6 Internet connection settings, IPv6 service from your
ISP (Internet service provider) is required. For more information on this service,
ask your ISP.
To set IPv6 firewall settings, do the following:
•
Log in to Linksys Smart Wi-Fi. (See “How to connect to Linksys Smart Wi-Fi” on
page ¶.
•
Under
Router Settings
, click
Security
. The
Security
page opens to the
Firewall
tab.
Click
Add IPv6 Firewall Setting
. You can now change the following fields:
•
Description
— Enter a description of the application.
•
Protocol
— Select
TCP, UDP
, or
Both
(default).
•
IPv6 Address
— Enter the IPv6 address of the computer that should receive the
traffic.
•
Allow
— Select the range of port(s) used by incoming traffic.
Click
Save
. The list will update to show the new settings:
•
To change a saved setting, click
Edit
next to the setting.
•
To delete a saved setting, click
Remove
next to the setting.
Page 30 / 108
WRT 1900AC
|
Setting Up: Advanced
27
HOW TO SET UP THE DHCP SERVER ON YOUR ROUTER
Your router can be used as a DHCP (Dynamic Host Configuration Protocol) server
to automatically assign an IP address to each computer or device on your network.
The DHCP server is enabled by default. If you already have a DHCP server on your
network, or if you do not want to use your router as a DHCP server, you should
disable this setting.
To configure your router’s DHCP server settings do the following:
Log in to Linksys Smart Wi-Fi. (See “How to connect to Linksys Smart Wi-Fi” on
page ¶.)
Under
Router Settings
, click
Connectivity
.
Click the
Local Network
tab.
To disable the DHCP server, deselect the Enabled checkbox.
Leave the Enabled checkbox selected to edit the following settings:
•
Start IP address
•
Maximum number of users
•
IP address range (not editable)
•
Client lease time
•
Static DNS values
•
WINS
Click
OK
.
HOW TO SET UP DHCP RESERVATION
DHCP reservation allows you to assign a unique, fixed IP address to a specific
device on your network. Assigning a fixed IP address is a good way to manage
devices such as print servers, web cameras, network printers, and game con-
soles. A fixed IP address is also recommended if you want to use port forwarding
for devices that need to receive inbound traffic from the Internet (“How to set up
port forwarding” on page 39).
To configure DHCP reservation do the following:
Log in to Linksys Smart Wi-Fi. (See “How to connect to Linksys Smart Wi-Fi” on
page ¶.)
Under
Router Settings
, click
Connectivity
.
Click the
Local Network
tab, and click
DHCP Reservations
. The
DHCP Reservations
list opens, which lists attached network devices and current DHCP reservations.
Click the Select checkbox next to the device you want to reserve, and click
Add DHCP Reservation.
Click
Edit
to change the reservation details, or click
Delete
to delete the
reservation.
Tip:
For field descriptions, click
Help
at the top of the screen.

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