Chapter 1 - Introduction The ASUS Wireless Family
The ASUS Wireless family contains a several wireless network solutions for 802.11g & 802.11b wireless local area networks in the home or office.

Access Point or Client

The ASUS WLAN 802.11g Access Point (WL-300g) creates a wireless network using the IEEE 802.11g and 802.11b wireless standards. The ASUS 3 in 1 Pocket Access Point (WL-330g) creates a wireless network using the IEEE 802.11g/b wireless standards.
Access Point & Router
The ASUS WLAN Gateway (WL-500g) creates a wireless network using the IEEE 802.11g/b wireless standards and allows sharing a single Internet connection.
The ASUS WLAN 802.11g Pocket Router (WL530g) creates a wireless network using the IEEE 802.11g and 802.11b wireless standards and allows sharing a single Internet connection.

PCMCIA Client

The ASUS WLAN PC Card (WL-107g) is a wireless LAN adapter that fits into a PCMCIA Type II slot in a Notebook PC and creates a wireless network using the IEEE 802.11g/b wireless standards.
Compact Flash (CF) Client
The ASUS 802.11b Wireless CF Card (WL-110) is a IEEE 802.11b wireless LAN adapter that fits into a Compact Flash Type II slot in a Portable Digital Assistant (PDA).
(The illustrations are not to scale.)
The ASUS WLAN PCI Card (WL138g) is a wireless LAN adapter that fits into a standard PCI slot in a desktop PC and creates a wireless network using the IEEE 802.11g/b wireless standards. The ASUS USB Wireless LAN Adapter (WL-160g) creates a wireless network using the IEEE 802.11g/b wireless standards and connects to any computer using USB2.0 connectivity.

802.11g 54M bps

PCI Client
USB Access Point or Client USB Client
The ASUS USB Wireless LAN Adapter (WL-167g) is thumb-sized and creates a wireless network using the IEEE 802.11g/b wireless standards and connects to any computer using USB2.0 connectivity.
Access Point & File Server
The ASUS WLAN 802.11g Access Point (WLHDD) creates a wireless network using the IEEE 802.11g and 802.11b wireless standards. Also serves as a file server (wireless network attached storage).

Warning: It is the responsibility of the installer and users of the ASUS Wireless Router to guarantee that the antenna is operated at least 20 centimeters from any person. This is necessary to insure that the product is operated in accordance with the RF Guidelines for Human Exposure which have been adopted by the Federal Communications Commission.

2. Installation

4. LAN Connection: Attach one end of an RJ-45 Ethernet cable to the ASUS Wireless Routers LAN port (any one of the four) and attach the other end to the RJ-45 Ethernet cable to your desktop computer. 5. Power Connection: The ASUS Wireless Router requires power from an external power supply. The ASUS Wireless Router ships with a UL listed, Class 2 power supply (5V, 2A). Attach one end of the DC power adapter to the back of the ASUS Wireless Router and the other end to a power outlet. The Power LED on the front of the ASUS Wireless Router will light up when the unit is powered ON. In addition, the green LAN or WAN LEDs will turn ON to indicate that the ASUS Wireless Router has a physical Ethernet network connection.
Warning: Use the ASUS Wireless Router only with the power adapter supplied in the product package. Using another power supply may damage the ASUS Wireless Router.
Chapter 3 - Software Configuration
3. Software Configuration
Configuring the ASUS Wireless Router
The ASUS Wireless Router can be configured to meet various usage scenarios. Some of the factory default settings may suit your usage; however, others may need changing. Prior to using the ASUS Wireless Router, you must check the basic settings to guarantee it will work in your environment. Configuring the ASUS Wireless Router is done through a web browser. You need a Notebook PC or desktop PC connected to the ASUS Wireless Router (either directly or through a hub) and running a web browser as a configuration terminal. The connection can be wired or wireless. For the wireless connection, you need an IEEE 802.11g/b compatible device, e.g. ASUS WLAN Card, installed in your Notebook PC. You should also disable WEP and set the SSID to default for your wireless LAN device. If you want to configure the ASUS Wireless Router or want to access the Internet through the ASUS Wireless Router, TCP/IP settings must be correct. Normally, the TCP/IP setting should be on the IP subnet of the ASUS Wireless Router.

(2) Click Next after reading the welcome screen.
(3) Click Yes after reading the license agreement.
(4) Click Next to accept the default destination folder or enter another.
(5) Click Next to accept the default program folder or enter another.
(6) Click Finish when setup is complete.
Note: By default, the Wireless Router will act as a router and provide an IP address only when a physical connection on the WAN port exists. You must connect the Wireless Routers WAN port with your ADSL or Cable modem using a network cable. Note: Before rebooting your PC, the ASUS Wireless Router should be switched ON and in the ready state.
Using the Wireless Router for the First Time
1. ASUS Wireless Router Utilities
Run Device Discovery from ASUS Utility in Windows Start Programs.
2. Connect to the ASUS WLAN Web Manager
Run the ASUS WLAN Device Discovery from the Start menu and click Config when the device is found.
Add 192.168.1.1 in the Exceptions box if you are using a proxy server.
If your computers IP is not on the same subnet as the ASUS Wireless Router (192.168.1.X), you will be asked to change it. The IP address can be any number from 2 to 254 that is not used by another device. Gateway is not required.
Note: Using a proxy server for your LAN requires that you set an exception for the ASUS Wireless Router or else connection will fail.
Enter Address or Name Manually You can also open your PCs web browser and enter the name or the default IP address of the ASUS Wireless Router: WL530g http://my.router or http://my.WL530g or http://192.168.1.1

User Name & Password

Once connected, a window will ask for the User name and Password in order to log in. The factory default values are admin and admin.
Note: If you cannot find any the ASUS Wireless Routers due to a problem in the IP settings, push and hold the Restore button over five seconds to restore factory default settings.

Home Page

After logging in, you will see the ASUS Wireless Router home page.
Important: After entering information on any page, click the. If you click any other link, you will be diApply button rected to another page and lose your new settings.

3. Set your own password

4. Use Quick Install
ASUS Pocket Wireless Router 25

Quick Setup

To start quick setup, click Next to enter the Quick Setup page. Follow the instructions to setup the ASUS Wireless Router.

Wireless (Cont.)

Wireless Mode This field indicates the 802.11g interface mode. Selecting Auto allows 802.11g and 802.11b clients to connect to the ASUS Wireless Router. Selecting 54g Only maximizes performance, but prevents 802.11b clients from connecting to the ASUS Wireless Router. If 54g Protection is checked, G-Mode protection of 11g traffic is enabled automatically in the presence of 11b traffic. Authentication Method This field enables you to set different authentication methods which determine different encryption schemes. The relationship between Authentication Method, Encryption, Passphrase and WEP Keys is listed in the following table. If all your clients support WPA, using WPA-PSK is recommended for better security. WPA Encryption When WPA-PSK authentication method is used, the newly proposed TKIP (Temporal Key Integrity Protocol) encryption schemes are applied. TKIP: TKIP uses an encryption algorithm, which is more stringent than the WEP algorithm and also uses existing WLAN calculation facilities to perform encryption operations. TKIP verifies the security configuration after the encryption keys are determined. WPA Pre-Shared Key Selecting TKIP in the WPA Encryption, this field is used as a password to begin the encryption process. Note: 8 to 63 characters are required.
Authentication Method Open or shared key
Encryption None WEP-64 bits WEP-128 bits WEP-64 bits WEP-128 bits TKIP only *
Passphrase Not required 1~64 characters 1~64 characters 1~64 characters 1~64 characters 8~63 characters
WEP Key 1~4 Not required 10 hex 26 hex 10 hex 26 hex Not required

Shared key WPA-PSK ^

WEP Encryption Traditional WEP encryption is applied when Open or Shared Key, Shared Key authentication methods are selected. 64/128-bit versus 40/104-bit The following section explains low-level (64-bit) and high-level (128-bit) WEP Encryption schemes. 64-bit WEP Encryption 64-bit WEP and 40-bit WEP are the same encryption method and can interoperate in a wireless network. This level of WEP encryption uses a 40-bit (10 Hex character) encryption scheme as a secret key, which is set by the user, and a 24-bit Initialization Vector scheme, which is not under user control. Together these two schemes make a 64-bit (40 + 24) encryption scheme. Some vendors refer to this level of WEP as 40-bit and others refer to this as 64-bit. ASUS WLAN products use the term 64-bit when referring to this lower level of encryption.

128-bit WEP Encryption 104-bit WEP and 128-bit WEP are the same encryption method and can interoperate on a wireless network. This level of WEP encryption uses a 104-bit (26 Hex character) encryption scheme as a secret key which is set by the user, and a 24-bit Initialization Vector, which is not under user control. Together these two schemes make a 128-bit (104 + 24) encryption scheme. Some vendors refer to this level of WEP as 104-bit and others refer to this as 128-bit. ASUS WLAN products use the term 128-bit when referring to this higher level of encryption. Passphrase Selecting WEP-64bits or WEP-128bits in the Encryption field generates four WEP keys automatically. A combination of up to 64 letters, numbers, or symbols is required. Alternatively, leave this field blank and type in four WEP keys manually.
WEP-64bit key: 10 hexadecimal digits (0~9, a~f, and A~F) WEP-128bit key: 26 hexadecimal digits (0~9, a~f, and A~F)
Note: The ASUS WLAN family of products uses the same algorithm to generate WEP keys, eliminating the need for users to remember passwords and to maintain compatibility between products. However, using this method to generate WEP keys is not as secure as manual assignment.
WEP Key You can set a maximum of four WEP keys. A WEP key is either 10 or 26 hexadecimal digits (0~9, a~f, and A~F) based on whether you select 64bits or 128bits in the WEP pull-down menu. The ASUS Wireless Router and ALL of its wireless clients MUST have at least the same default key. Key Index The Default Key field lets you specify which of the four encryption keys you use to transmit data on your wireless LAN. As long as the ASUS Wireless Router or wireless mobile client with which you are communicating has the same key in the same position, you can use any of the keys as the default key. If the ASUS Wireless Router and ALL of its wireless clients use the same four WEP keys, select key rotation to maximize security. Otherwise, choose one key in common as the default key. Network Rotation Key Interval This field specifies the time interval (in seconds) after which a WPA group key is changed. Enter 0 (zero) to indicate that a periodic key-change is not required.

Access Control

Pull down menu items:
Disable (no info required) Accept (need to input information) Reject (need to input information)
To add security, the ASUS Wireless Router has the ability to only associate with or not associate with wireless mobile clients that have their MAC address entered into this page. The default setting of Disable will allow any wireless mobile client to connect. Accept will only allow those entered into this page to connect. Reject will prevent those entered into this page from connecting. Adding a MAC Address To add a MAC address, enter the 12 hexadecimal characters into the white box next to MAC Address: and click the Add button. The MAC address will be placed in the control list below. Only a total of 31 MAC addresses can be entered into this page so determine which will be the lesser; those you wish to accept or those you wish to reject and click the appropriate MAC Access Mode.

Note: Click the Finish button to save your new settings and restart the ASUS Wireless Router or click Save and restart later.

Advanced

This section allows you to set up additional parameters for the wireless router function. We recommend that you use the default values for all items in this window.
Hide SSID - By default, No is selected so that wireless mobile users can see your ASUS Wireless Routers SSID and join. If Yes is selected, your ASUS Wireless Router will not show in site surveys by wireless mobile clients and they will have to manually enter your ASUS Wireless Routers SSID. If you want to restrict access to your ASUS Wireless Router , this is a simple way to do it but for security reasons, dont forget to change the SSID to something other than default. Data Rate (Mbps) - This field allows you to specify the transmission rate. Leave on Auto to maximize performance versus distance. Basic Rate Set - This field indicates the basic rates that wireless clients must support. Use 1 & 2 Mbps only when backward compatibility is needed for some older wireless LAN cards with a maximum bit rate of 2Mbps.
Fragmentation Threshold (256~2346) Fragmentation is used to divide 802.11 frames into smaller pieces (fragments) that are sent separately to the destination. Enable fragmentation by setting a specific packet size threshold. If there is an excessive number of collisions on the WLAN, experiment with different fragmentation values to increase the reliability of frame transmissions. The default value (2346) is recommended for normal use. RTS Threshold (0~2347) The RTS/CTS (Request to Send/Clear to Send) function is used to minimize collisions among wireless stations. When RTS/CTS is enabled, the router refrains from sending a data frame until another RTS/CTS handshake is completed. Enable RTS/CTS by setting a specific packet size threshold. The default value (2347) is recommended. DTIM Interval (1~255) DTIM (Delivery Traffic Indication Message) is a wireless message used to inform clients in Power Saving Mode when the system should wake up to receive broadcast and multicast messages. Type the time interval in which the system will broadcast a DTIM for clients in Power Saving Mode. The default value (3) is recommended. Beacon Interval (1~65535) This field indicates the time interval in milliseconds that a system broadcast packet, or beacon, is sent to synchronize the wireless network. The default value (100 milliseconds) is recommended.

Miscellaneous

Enable UPnP Selecting Yes to enable UPnP, it will allow your Wireless Router to be found automatically by systems, such as Windows XP. And it allows these systems to automatically configure the Wireless Router for various Internet applications, such as gaming and video conferencing. Remote Log Server This feature allows you to assign a remote server to record log messages of the Wireless Router. If you leave it blank, system will record up to 1024 messages on the Wireless Router only. Time Zone This field indicates time zone where you are locating in. NTP Server NTP Server is a time server on the Internet that allows the Wireless Router to synchronize its system time to. You can keep the default IP address or set to the IP address of an NTP server that you prefer. DDNS Setting Dynamic - DNS (DDNS) allows user to export host name to Internet through DDNS service provider. Each time the ASUS Wireless Router connect to Internet and get an IP address from ISP, this function will update your IP address to DDNS service provider automatically, so that any user on Internet can access the ASUS Wireless or servers behind it through a predefined name registered in DDNS service provider. Enable the DDNS Client? Selecting Yes to enable DDNS update, then each time your IP address to WAN is changed, the information will be updated to DDNS service provider automatically.
Server Currently, clients connect to DynDNS or TZO are embedded in the Wireless Router. You can click Free Trial link behind this field to start with a free trial account. User Name or E-Mail Address This field is used as an identity to log in Dynamic-DNS service. Password or DDNS Key This field is used as a password to log in Dynamic-DNS service. Host Name This field represents the Host Name you register to DynamicDNS service and expect to export to the world. Enable wildcard? This field determines if domain name with wildcard is also redirected to your IP address. Update Manually This button allows you to update DDNS database manually. It is available only when automatic DDNS update failed. You can get current status of DDNS update from System Log.
Note: Currently, clients connected to DynDNS or TZO are embedded in ASUS Wireless Router. You can click Free Trial link behind each DDNS service provider to start with a free trial account.

NAT Setting

Click this item on the menu to reveal a sub menu. Follow the instructions to setup the ASUS wireless router. Tips are given when you move your cursor over each item.

Port Trigger

This function allows you to open certain TCP or UDP ports to communicate with the computers connected to the WL530g. This is done by defining trigger ports and incoming ports. When the trigger port is detected, the inbound packets to the specified incoming port numbers are redirected to your computer. Enable Port Trigger? - Selecting Yes applies all the rules in the Port Trigger List to the Wireless Router. Port Trigger List Trigger Port - This field allows you to enter the port or port range of outing packets that will trigger port redirect. Protocol - This field allows you to select the protocol of outgoing packets. Incoming Port - This field allows you to enter the port or port range of incoming packets that will be redirected to your computer. Protocol - This field allows you to select the protocol of incoming packets. Description - This field keeps information on what the rule is used for.

NAT Setting (Cont.)

Virtual Server
To make services, like WWW, FTP, provided by a server in your local network accessible for outside users, you should specify a local IP address to the server. Then, add the IP address and network protocol type, port number, and name of the service in the following list. Based on the list, the gateway will forward service request from outside users to the corresponding local server. Enable Virtual Server? Selecting Yes applies all those rules in Virtual Server List into the Wireless Router. Virtual Server List Local IP This field stands for the destination IP address that you like to redirect the matched packet to. Port Range This field stands for a port number or a range of ports. Once the destination port of incoming packets matches the port or within the port range, the incoming packets will be redirect to IP address specified in Local IP. Protocol This field stands for protocol of incoming packets. Description This field allows you to record what this rule is used for.

Virtual Server vs. DDNS

Cooperating with DDNS, your can expose your server to Internet with a unique name, even through dynamic WAN IP address is applied.

Virtual DMZ

Virtual DMZ allows you to expose one computer to Internet, so that all inbound packets will be redirected to the computer you set. It is useful while you run some applications that use uncertain incoming ports. IP Address of Exposed Station This field stands for the IP address of the computer that you want to expose to Internet.

Please use it carefully.

Internet Firewall (Cont.)

Basic Config

Enable Firewall? Selecting Yes enables firewall to apply general SPI rules. And the following options work only when firewall is enabled. Logged Packet Type This field indicates what kind of packets between WAN and LAN will be logged. Enable Web Access from WAN This field allows you to specify the port used to access Web server of the ASUS Wireless Router from Internet. The default value is 8080. If you know the WAN IP address of the Wireless Router, open your web browser and enter the IP address. For example:

http://140.113.201.1:8080
If you enable the DDNS with an account, please open your web browser and enter the host name registered in DDNS service provider. For example:
http://wl530g.homelinux.org:8080 Note: The default web browser port 80, is reserved for the Web server within your local network.
Port of Web Access from WAN - This field allows you to specify the port used to access the Web server of the ASUS Wireless Router from the Internet. The default value is 8080.

Internet Firewall

LAN & WAN Filter
LAN to WAN Filter LAN & WAN filter allows you to block specified packets between LAN and WAN. At first, you can define the date and time that filter will be enabled. Then, you can choose the default action for filter in both directions and insert the rules for any exceptions. Date to Enable LAN to WAN Filter This field defines the dates that LAN to WAN filter will be enabled. Time of Day to Enable LAN to WAN Filter This field defines the time interval that LAN to WAN filter will be enabled. Packets (LAN to WAN) not specified will be This field defines those LAN to WAN packets which are not specified in LAN to WAN Filter Table will be accepted or dropped. Filtered ICMP (LAN to WAN) packet types This field defines a list of LAN to WAN ICMP packets type that will be filtered. For example, if you would like to filter Echo (type 8) and Echo Reply (type 0) ICMP packets, you need to enter a string with numbers separated by blank, such as, "0 5".

LAN to WAN Filter Table

Source/Destination IP Address - For source or destination IP address, you can input a specific IP address, such as "192.168.122.1", or IP addresses within one subnet, such as "192.168.123.*", or "192.168.*.*", or all IP addresses as "*". Source/Destination Port or Port Range - For source or destination port range, you can input a specific port, such as "95", or ports within a range, such as "103:315", ">100", or "<65535". Protocol This field indicates the protocol type of packets this rule like to filer.
48 ASUS Pocket Wireless Router

URL Filter

URL Filter allows you to block specific URL access from your local network. Enable URL Filter? Selecting Yes enables URL Filter and applies rules in URL Keyword List into the Wireless Router. Date to Enable URL Filter This field defines the dates that URL filter will be enabled. Time of Day to Enable URL Filter This field defines the time interval that URL filter will be enabled. URL Keyword List URL Keyword If the URL filter is enabled and URL access contains the keyword specified in the URL Keyword List, the DNS mapping of this URL would be blocked.

Site Surveys

A site survey (utility provided with the WLAN PC card and CF card) analyzes the installation environment and provides users with recommendations for equipment and its placement. The optimum placement differs for each model.

4. Performance

Every environment is unique with different obstacles, barriers, materials, etc. and, therefore, it is difficult to determine the exact range that will be achieved without testing. However, has developed some guidelines to estimate the range that users will see when the product is installed in their facility, but there are no hard and fast specifications. Radio signals may reflect off of some obstacles or be absorbed by others depending on their construction. For example, with two 802.11b radios, you may achieve up to 1000' in open space outdoors where two devices have a line of sight, meaning they see each other with no obstacles. However, the same two units may only achieve up to 300' of range when used indoors. The IEEE 802.11b specification supports four data rates: 11 Mbps, 5.5 Mbps, 2 Mbps, and 1 Mbps. Operation at 1 Mbps provides greater range than operation at 11 Mbps. The ASUS Wireless Router will automatically adjust the data rate to maintain a usable radio connection. Therefore, a client that is close to the ASUS Wireless Router may operate at 11 Mbps while a client that is on the fringe of coverage may operate at 1 Mbps. As mentioned earlier, you can configure the data rates that the ASUS Wireless Router will use. Note that if you limit the range of data rates available to the ASUS Wireless Router, you may reduce the effective wireless range of the ASUS Wireless products.
Appendix -Troubleshooting

Troubleshooting

The ASUS Wireless Router is designed to be very easy to install and operate. However, if you experience difficulties, use the information in this chapter to help diagnose and solve problems. If you cannot resolve a problem, contact Technical Support, as listed on the front of this manual.
Common Problems and Solutions
Problem ASUS Wireless Router does not power up: Solution Check for faulty the ASUS Wireless Router power supply by measuring the output voltage with an electrical test meter. Check failed AC supply (power outlet) Problem Cannot communicate with the ASUS Wireless Router through a wired network connection. Solution Verify network configuration by ensuring that there are no duplicate IP addresses. Power down the device in question and ping the assigned IP address of the device. Ensure no other device responds to that address. Check that the cables used have proper pin outs and connectors or use another LAN cable.

NAT (Network Address Translation) - NAT masks a local networks group of IP addresses from the external network, allowing a local network of computers to share a single ISP account. This process allows all of the computers on your home network to use one IP address. This will enable access to the Internet from any computer on your home network without having to purchase more IP addresses from your ISP. PC Card - This is an Ethernet card that connects to the PCMCIA slot on your Notebook PC. This enables the computer to communicate with wireless access points. PPP (Point-to-Point Protocol) - PPP is a protocol for communication between computers using a serial interface, typically a personal computer connected by phone line to a server. PPPoE (Point-to-Point Protocol over Ethernet) - Point-to-Point Protocol is a method of secure data transmission. PPP using Ethernet to connect to an ISP. Subnet Mask - A subnet mask is a set of four numbers configured like an IP address. It is used to create IP address numbers used only within a particular network. TCP/IP (Transmission Control Protocol/Internet Protocol) - This is the standard protocol for data transmission over the Internet. Protocols used to connect hosts on the Internet. WAN (Wide Area Network) - A system of LANs, connected together. A network that connects computers located in separate areas, (i.e., different buildings, cities, countries). The Internet is a wide area network. WECA (Wireless Ethernet Compatibility Alliance) - An industry group that certifies cross-vender interoperability and compatibility of IEEE 802.11b wireless networking products and to promote that standard for enterprise, small business, and home environments. WLAN (Wireless Local Area Network) - This is a group of computers and other devices connected wirelessly in a small area. A wireless network is referred to as LAN or WLAN.
Appendix - GNU General Public License

Licensing Information

This product includes copyrighted third-party software licensed under the terms of the GNU General Public License. Please see The GNU General Public License for the exact terms and conditions of this license. Specially, the following parts of this product are subject to the GNU GPL: The Linux operating system kernel The iptables packet filter and NAT software The busybox swiss army knife of embedded linux The zebra routing daemon implementation The udhcpd DHCP client/server implementation The pptp-linux PPTP client implementation The rp-pppoe PPPoE client implementation The pppd PPP daemon implementtion The dproxy DNS proxy implementation The bridge-utils package All listed software packages are copyright by their respective authors. Please see the source code for detailed information.

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 provded 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 bedistributed 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 allowe 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 modificationsto 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 spcial 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 omponent 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 te source code, even though third parties are not compelled to copy the source along with the object code.
70 ASUS Pocket Wireless Router
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to cop, 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 sch 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 prohibite 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 modifing 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 trms 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 judgmentor 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 coditions 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 ould not permit royalty-free 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. I 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.