Sitecom WL-368 User Manual

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WL-351
Wireless Gigabit Router 300N X3
WL-368
Wireless Gigabit Router 300N X2
(802.11bgn)
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User Manual
TABLE OF CONTENTS
.....................................................................................................................1
.....................................................................................................................1
1KEY FEATURES ................................................................................................................................... 4
2PACKAGE CONTENTS ...................................................................................................................... 5
3PRODUCT LAYOUT ............................................................................................................................ 6
4NETWORK + SYSTEM REQUIREMENTS ..................................................................................... 8
5WL-351/368 PLACEMENT ................................................................................................................. 8
6SETUP LAN, WAN ................................................................................................................................ 9
7PC NETWORK ADAPTER SETUP ................................................................................................. 10
8BRING UP THE WL-351/368 ............................................................................................................ 14
9 INITIAL SETUP WL-351/368 ........................................................................................................... 14
10 CONFIGURATION WIZARD ........................................................................................................ 23
11 WIRELESS SETTINGS ................................................................................................................... 25
12 FIREWALL SETTINGS .................................................................................................................. 36
13 ADVANCED SETTINGS ................................................................................................................ 42
14 TOOLBOX SETTINGS .................................................................................................................. 53
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Introduction
your wired-Ethernet devices together at 10/100/1000 Mbps speeds.
At 300 Mbps wireless transmission rate, the Access Point built into the Router
access to multimedia content. The robust RF signal travels farther, eliminates
the WL-351/368 encodes all wireless transmissions with WEP, WPA, or WPA2
encryption.
With the inbuilt DHCP Server & powerful SPI firewall, the WL-351/368
like streaming video, gaming, and VoIP telephony to run multiple media-
degradation in performance.
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1 Key Features

Features Advantages
Incredible Data Rate up to
Heavy data payloads such as
300Mbps*
IEEE 802.11n Compliant and
backward compatible with 802.11b/
g
Four 10/100/1000 Mbps gigabit
Switch Ports (Auto-Crossover) Firewall supports Virtual Server
Mapping, DMZ, IP Filter, ICMP
Blocking, SPI Support 802.1x authenticator,
802.11i (WPA/WPA2, AES), VPN
pass-through WDS (Wireless Distribution System) Make wireless AP and Bridge
* Theoretical wireless signal rate based on IEEE standard of 802.11a, b, g, n chipset used. Actual
throughput may vary. Network conditions and environmental factors lower actual throughput rate.
All specifications are subject to change without notice.
MPEG video streaming
Fully Interoperable with IEEE
802.11b / IEEE802.11g
compliant devices with legacy
protection
Scalability, extend your network.
Avoids the attacks of Hackers or
Viruses from Internet
Provide mutual authentication
(Client and dynamic encryption
keys to enhance security
mode simultaneously as a
wireless repeater
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2 Package Contents

Open the package carefully, and make sure that none of the items listed
the unit must be shipped back in its original package.
1. The WL-351/368 Router
2. A 220V~240V Power Adapter
3. A Quick Install Guide
4. A CD (User’s Manual)
5. A Warranty card
6. An UTP cable
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3 Product Layout

Port Description
Power connector Connect the 12V DC adapter to this port LAN (Yellow) Connect your PC’s or network devices to this port WAN (Blue) Connect your ADSL/Cable modem to this port
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Backlabel
The backlabel describes the IP address, login details, SSID, security code and
WPS button functionality.
Button Description
Press 2 seconds for WPS mode
WPS BUTTON
Press 10 seconds to reset the router
Press 15 Seconds to reset the router to factory defaults.
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4 Network + System Requirements

To begin using the WL-351/368, make sure you meet the following as minimum
requirements:
PC/Notebook.
Operating System – Microsoft Windows XP/2000/VISTA
1 Free Ethernet port.
WiFi card/USB dongle (802.11 b/g/n) – optional.
External xDSL (ADSL) or Cable modem with an Ethernet port (RJ-45).
PC with a Web-Browser (Internet Explorer, Safari, Firefox, Opera)
Ethernet compatible CAT5 cables.

5 WL-351/368 Placement

You can place the WL-351/368 on a desk or other flat surface, or you can mount
it on a wall. For optimal performance, place your Wireless Broadband Router in
the center of your office (or your home) in a location that is away from any
potential source of interference, such as a metal wall or microwave oven. This
location must be close to a power connection and your ADSL/Cable modem.
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6 Setup LAN, WAN

WAN connection:
LAN connection:
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7 PC Network Adapter setup

Windows XP
Enter [Start Menu] select [Control panel] select [Network].
Select [Local Area Connection]) icon=>select [properties]
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Select [Internet Protocol (TCP/IP)] =>Click [Properties].
Select the [General] tab.
a. The WL-351/368 supports [DHCP] function, please select both [Obtain
an IP address automatically] and [Obtain DNS server address
automatically].
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Windows Vista
Enter [Start Menu] select [Control panel] select [View network status
and tasks] -> select [Manage network connections].
Select [Local Area Connection]) icon=>select [properties]
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Select [Internet Protocol Version 4 (TCP/IPv4)] =>Click [Properties].
Select the [General] tab.
The WL-351/368 supports [DHCP] function, please select both [Obtain an IP
address automatically] and [Obtain DNS server address automatically].
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8 Bring up the WL-351/368

a wall outlet. The WL-351/368 automatically enters the self-test phase.
this product is in normal operation.

9 Initial Setup WL-351/368

LOGIN procedure
1. OPEN your browser (e.g. Internet Explorer).
2. Type http://192.168.0.1 in the address bar and press [Enter]
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3. Type user name and password (default is admin/admin).
4. Click OK.
5. You will see the home page of the WL-351/368.
The System status section allows you to monitor the current status of your router
the UP time, hardware information, serial number as well as firmware version
information is displayed here.
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LAN settings
The LAN tab gives you the opportunity to change the IP settings of the WL-
351/368.
Click <Apply> at the bottom of this screen to save any changes.
IP address 192.168.0.1. It is the router’s LAN IP address (Your LAN clients
default gateway IP address).
IP Subnet Mask 255.255.255.0 Specify a Subnet Mask for your LAN segment.
802.1d Spanning Tree is Disabled by default. If the 802.1d Spanning Tree
function is enabled, this router will use the spanning tree protocol to prevent
network loops.
DHCP Server Enabled by default. You can enable or disable the DHCP server.
When DHCP is disabled no ip-addresses are assigned to clients and you have to
use static ip-addresses. When DHCP server is enabled your computers will be
assigned an ip-address automatically until the lease time expires.
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Lease Time Forever. In the Lease Time setting you can specify the time period
that the DHCP lends an IP address to your LAN clients. The DHCP will change
your LAN client’s IP address when this time threshold period is reached.
IP Address Pool You can select a particular IP address range for your DHCP
server to issue IP addresses to your LAN Clients.
Note: default IP range is 192.168.0.100 ~ 192.168.0.200. If you want
your PC(s) to have a static/fixed IP address, then you’ll have to choose
an IP address outside this IP address Pool
Domain Name You can specify a Domain Name for your LAN. Or just keep the
default (sitecomwl351).
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Device Status
View the Broadband router’s current configuration settings. Device Status
displays the configuration settings you’ve configured in the Wizard / Basic
Settings / Wireless Settings section.
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Internet Status
This page displays whether the WAN port is connected to a Cable/DSL
connection. It also displays the router’s WAN IP address, Subnet Mask, and ISP
Gateway as well as MAC address, the Primary DNS. Press Renew button to
renew your WAN IP address.
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DHCP Client Status
DHCP This page shows all DHCP clients (LAN PCs) currently connected to your
network. The table shows the assigned IP address, MAC address and expiration
time for each DHCP leased client. Use the Refresh button to update the available
information.
You can check Enable Static DHCP IP. It is possible to add more static DHCP
IPs. They are listed in the table Current Static DHCP Table. IP can be deleted
at will from the table.
Click apply button to save the changed configuration.
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WL-351/368 Log
View the operation log of the WL-351/368. This page shows the current
system log of the Broadband router. It displays any event occurred after system
start up. At the bottom of the page, the system log can be saved <Save> to a
local file for further processing or the system log can be cleared <Clear> or it
can be refreshed <Refresh> to get the most updated information. When the
system is powered down, the system log will disappear if not saved to a local file.
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WL-351/368 Statistics
Shows the counters of packets sent and received on WAN, LAN & WLAN.
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10 Configuration Wizard

Click Wizard to configure the router. The Setup wizard will now be displayed;
check that the modem is connected and click Next.
Select your country from the Country list. Select your internet provider. Click
Next.
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Click APPLY to complete the configuration.
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11 Wireless Settings

You can set parameters that are used for the wireless stations to connect to this
router. The parameters include Mode, ESSID, Channel Number and Associated
Client.
Wireless Function
Enable or Disable Wireless function here. Click Apply and wait for module to
be ready & loaded.
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Basic Settings
Mode Allows you to set AP or WDS mode.
Band Allows you to set the AP fixed at 802.11b or 802.11g mode. You can
also select B+G mode to allow 80211b and 802.11g clients at the same time.
Enable SSID # Allows you to enable up to four SSIDs for this router.
devices in the same wireless LAN should have the same ESSID.
wireless LAN should use the same channel.
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Advanced Settings
Interval, and Preamble Type. You should not change these parameters unless
you know what effect the changes will have on the router.
and "Shared Key". When you select "Open System", wireless stations can
associate with this wireless router without WEP encryption. When you select
After this has been done, make sure the wireless clients that you want to
connect to the device are also setup with the same encryption key.
value too low, it will result in bad performance.
wireless router will not use the RTS/CTS mechanism to send this packet.
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beacon. A Beacon is used to synchronize the wireless network.
data packets. The access point will use the highest possible selected
transmission rate to transmit the data packets.
rate can be fixed.
Channel Bandwidth is the range of frequencies that will be used.
performance.
transmitted.
TX Power can be set to a bare minimum or maximum power.
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Security
are WEP, IEEE 802.11x, IEEE 802.11x with WEP, WPA with pre-shared key
wireless LAN from illegal access. Please make sure your wireless stations use
the same security function, and are setup with the same security key.
security.
easily. If you are building a public wireless network, enabling this feature is
recommended. Disabling “Broadcast ESSID” can provide better security.
video and voice in applications.
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Disable
When you choose to disable encryption, it is very insecure to operate the WL-
351/368.
Enable 802.1x Auth
authentication is processed by a RADIUS server. This mode only authenticates
users by IEEE 802.1x, but it does not encrypt the data during communication
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WEP
When you select 64-bit or 128-bit WEP key, you have to enter WEP keys to
can receive any packets encrypted by one of the four keys.
Key Length You can select the WEP key length for encryption, 64-bit or 128-
throughput will be lower.
Hexadecimal Digits (in the "A-F", "a-f" and "0-9" range) to be the WEP Key.
5-digit ASCII character as the encryption keys. 128-bit WEP: input 26-digit
Hex values (in the "A-F", "a-f" and "0-9" range) or 13-digit ASCII characters
as the encryption keys.
to apply the settings and reboot the device.
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WPA Pre-shared Key
Wi-Fi Protected Access (WPA) is an advanced security standard. You can use a
the best security available.
WPA-Radius
an external RADIUS server to authenticate wireless stations and provide the
are done.
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ACL
This wireless router supports MAC Address Control, which prevents
unauthorized clients from accessing your wireless network.
Enable wireless access control Enables the wireless access control function
Adding an address into the list Enter the "MAC Address" and "Comment"
Address" and "Comment" fields will be cleared.
"Reset" will clear your current selections.
to apply the settings and reboot the device.
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WPS
Wi-Fi Protected Setup (WPS) is the simplest way to establish a connection
both wireless client and wireless router, and WPS will do the rest for you.
The wireless router supports two types of WPS: WPS via Push Button and
configuration interface of the wireless router.
WPS function.
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wireless router is properly set, you’ll see a ‘Configured’ message here.
Otherwise, you’ll see ‘UnConfigured’.
this information when connecting to other WPS-enabled wireless devices.
SSID This is the network broadcast name (SSID) of the router.
wireless connection.
when using a device which doesn’t support WPS.
will wait for the WPS request from the wireless devices within 2 minutes.
from the wireless device within 2 minutes.
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12 Firewall Settings

The Broadband router provides extensive firewall protection by restricting
connection parameters, thus limiting the risk of hacker attacks, and defending
against a wide array of common Internet attacks. However, for applications that
require unrestricted access to the Internet, you can configure a specific
client/server as a Demilitarized Zone (DMZ).
Note: To enable the Firewall settings select Enable and click Apply
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DMZ
properly from behind the NAT firewall, then you can open up the firewall
restrictions to unrestricted two-way Internet access by defining a DMZ Host.
IP address to a particular IP address in your LAN. The difference between the
going to your WAN IP address to a particular LAN client/server.
Enable DMZ Enable/disable DMZ
addresses given to you by your ISP
address above.
Click <Apply> at the bottom of the screen to save the above configurations.
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Denial of Service (DoS)
occur the router can log the events.
Ping of Death Protections from Ping of Death attack
Discard Ping From WAN The router’s WAN port will not respond to any Ping
requests
Port Scan Protects the router from Port Scans.
Sync Flood Protects the router from Sync Flood attack.
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Access
have access to these services.
accept for the clients in the list below.
Allow If you select “Allow” then all clients will be denied to access Internet
accept for the PCs in the list below.
Filter client PCs by IP Fill in “IP Filtering Table” to filter PC clients by IP.
addresses.
All" button.
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Filtering.
be cleared.
“Reset”.
Click <Apply> at the bottom of the screen to save the above configuration.
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URL block
URL address or just keywords of the Web site.
Enable URL Blocking Enable/disable URL Blocking
the full URL address or the keyword of the web site you want to block.
the selection and re-select again, just click “Reset”.
Click <Apply> at the bottom of the screen to save the above configurations
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13 Advanced Settings

Addresses. NAT provides Firewall protection from hacker attacks and has the
function.
Hardware accelerator boosts network performance. Enable this feature to reach (internet)speeds up to 400Mbps. (Note: to achieve optimal results, the QOS and Bandwidth control features will be disabled.)
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Port Forwarding
numbers (from the Internet/WAN Port) to a particular LAN IP address. It helps
you to host servers behind the router NAT firewall.
Enable Port Forwarding Enable Port Forwarding
Private IP This is the private IP of the server behind the NAT firewall.
packets.
Port Range The range of ports to be forward to the private IP.
Comment description of this setting.
Forwarding setting will be added into the "Current Port Forwarding Table"
below.
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from the "Current Port Forwarding Table", select the Port Forwarding setting
want to remove all Port Forwarding settings from the table, just click "Delete
All" button. Click "Reset" will clear your current selections.
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Virtual Server
Use the Virtual Server function when you want different servers/clients in
numbers to recognize a particular service/Internet application type. The
Virtual Server allows you to re-direct a particular service port number (from
port number.
Enable Virtual Server Enable Virtual Server.
Private IP This is the LAN client/host IP address that the Public Port number
packet will be sent to.
Private Port This is the port number (of the above Private IP host) that the
below Public Port number will be changed to when the packet enters your
LAN (to the LAN Server/Client IP)
unsure, then leave it to the default “both” setting. Public Port Enter the
be re-directed to the above Private IP address host in your LAN
Comment The description of this setting.
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Port” and "Comment" of the setting to be added and then click "Add". Then
below.
button. Click "Reset" will clear your current selections.
Click <Apply> at the bottom of the screen to save the above configurations.
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Special Applications
Some applications require multiple connections, such as Internet games,
video Conferencing, Internet telephony and others. In this section you can
configure the router to support multiple connections for these types of
applications.
Enable Trigger Port Enable the Special Application function.
particular application.
both.
application (e.g. 2300-2400, 47624)
Public Type Select the Inbound port protocol type: “TCP”, “UDP” or both
Comment The description of this setting.
require multiple connections. Select an application from the Popular
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in the location (1-10) you specified.
Port”, "Public Type", "Public Port" and "Comment" of the setting to be added
click "Clear" and the fields will be cleared.
Trigger-Port Table", select the Special Application settings you want to remove
"Reset" will clear your current selections.
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ALG
You can select applications that need “Application Layer Gateway” support.
Enable select enable “Application Layer Gateway”, then the router will let the
selected application correctly pass through the NAT gateway.
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UPNP
through this router.
provided by UPnP can let applications that support UPnP connect to the
internet without having to configure the virtual server sections.
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QoS
QoS can let you classify Internet application traffic by source/destination IP
address and port number. You can assign priority for each type of application
will always go first. Lower priority applications will get bandwidth after higher
experience in using critical real time services like Internet phone, video
conference …etc. All the applications not specified by you are classified as rule
priority of the rules by moving them up or down.
Enable/Disable QoS You can check “Enable QoS” to enable QoS
functionality for the WAN port.
Add a QoS rule into the table Click “Add” then enter a form of the QoS
table.
the "Delete All" button. Clicking "Reset" will clear your current selections.
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rule will be saved.
Adjust QoS rule priority You can select the rule and click “Move Up” to
make its priority higher. You also can select the rule and click “Move Down” to
make its priority lower.
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14 TOOLBOX Settings

Password change options
system web-based management. By default, the password is: admin.
Passwords can contain 0 to 12 alphanumeric characters, and are case
sensitive.
Current Password Fill in the current password to allow changing to a new
password.
New Password Enter your new password.
purposes.
Click <Apply> at the bottom of the screen to save the above configurations
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Time Zone
here, which will affect functions such as Log entries and Firewall settings.
router will set its time based on your selection.
Time Server Address You can set an NTP server address.
account. If you wish to use this function, you must check/tick the enable box
to enable your daylight saving configuration (below).
daylight Savings Time
daylight Savings Time
Click <Apply> at the bottom of the screen to save the above configurations
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Remote Management
Enter the designated host IP Address in the Host IP Address field.
management/configuration access to the Broadband router from a remote
the password.
Port The port number of the remote management web interface.
Enabled Select “Enabled” to enable the remote management function.
Click <Apply> at the bottom of the screen to save the above configurations.
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Firmware Upgrade
This page allows you to upgrade the router’s firmware.
system firmware. To upgrade the firmware of your Broadband router, you
Browse button to find the firmware file on your PC.
the screen to start the upgrade process
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Backup Settings
The Backup screen allows you to save (Backup) the router’s current
can re-load the saved configuration into the router through the Restore
(e.g. when you first purchased the router).
file named "config.bin" on your PC. You can then use the "Restore" tool to
to perform a power reset and restore the original factory settings.
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Reset
function essentially re-boots your router’s system.
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DDNS
common DDNS service providers.
Enable/Disable Enable or disable the DDNS function of this router
Provider Select a DDNS service provider
Domain name Fill in your static domain name that uses DDNS
you
Password/Key The password you set for the DDNS service account above
Click <Apply> at the bottom of the screen to save the above configurations.
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Parts of the firmware of the WL-351/368 Wireless Broadband router are subject to the GNU
general public license.
Appendix A: Licensing Information
This product includes third-party software licensed under the terms of the GNU General Public
License.. You can modify or redistribute this free software under the terms of the GNU General Public License. Please see Appendix B for the exact terms and conditions of this license.
Specifically, the following part of this product is subject to the GNU GPL:
# Package name Source
1 Linux v2.6.21 www.kernel.org 2 Iptables v1.3.5 www.netfilter.org/ 3 Bridge-utils v1.2 bridge.sourceforge.net/ 4 Busybox v1.7.5 www.busybox.net/ 5 Rp-pppoe v3.8 freshmeat .net/projects/rp-pppoe/ 6 Pptp-client v1.7.1 pptpclient.sourceforge.net/ 7 Ppp v2.4.3 ppp.samba.org/ 8 Udhcp v0.9.9-pre udhcp.busybox.net/ 9 iproute2 v2.6.16-060323 www.linux-foundation.org/en/Net:Iproute2 10 Dnsmasq v2.39 www.thekelleys.org.uk/dnsmasq/doc.html 11 Ez-ipupdate v3.0.11b8 ez-ipupdate.com/ 12 Libupnp v1.6.0 upnp.sourceforge.net/ 13 Wireless-tools v28 RaLink SDK 3.1.0.0 14 U-boot v1.1.3 RaLink SDK 3.1.0.0 15 gcc-3.3.6 RaLink SDK 3.1.0.0 16 Uclibc-0.9.29 RaLink SDK 3.1.0.0
Availability of source code
Sitecom Europe BV has made available the full source code of the GPL licensed software, including any scripts to control the compilation and installation of the object code in the driver
section of this product.
No Warranty
The free software included in this product is distributed in the hope that it will be useful, but WITHOUT ANY LIABILITY OF OR ANY WARRANTY FROM THE LICENSOR.
Appendix B: GNU GENERAL PUBLIC LICENSE
Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place
- Suite 330, Boston, MA 02111-1307, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if
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you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow.
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1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee.
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licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License.
3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance.
5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License.
7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty­free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free
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software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation.
10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
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