Fast & Flexible
Small package, big network. Thats the EtherFast 4124 24-Port 10/100 Ethernet Switch. Efficient, affordable Ethernet connectivity for up to 24 devices. Rock-solid transmission technology designed to deliver fast, reliable performance for media, file-sharing, printing, Internet and more.

DATASHEET

u24 Autosensing 10/100 full duplex, auto MDI/MDI-X ports Run blazing speeds up to 200Mbps Address Learning and Data Flow Control for transmission reliability Compact size environment fits into any

Speed & Optimization

Enjoy transmission speeds up to 100 Mbps. Twenty-four 10/100 auto-sensing ports automatically optimize to connected devices speeds and eliminate need for MDI/MDI-X crossover cables.

Reliability

Communicate cleanly. Advanced switching and error correction technology helps reduce transfer errors and ensure more accurate transmissions.

Flexibility

Compact metal case fits anywhere. Includes optional rack-mounting adapters.
24-Port 10/100 Ethernet Switch

Model: EF4124

Features
24-Port 10/100 Full Duplex, Autosensing Ports Run Blazing Speeds of up to 200Mbps at Full Duplex Perfect for Running 10BaseT, 100BaseTX Hardware Together Seamlessly Data Flow Control Filters Out Faulty Data Packets Auto MDI/MDI-X Broadcast storm prevention
Specifications Model Number Standards Ports Cabling Type LEDs Environmental Dimensions Weight Power Certification Operating Temp. Storage Temp. Operating Humidity Storage Humidity
EF4124 IEEE 802.3, IEEE 802.3u, IEEE 802.3x 24 10/100 Auto-Negotiation RJ-45 Ports UTP/STP Category 5 or Better Power, Link/Activity (per port), Full Duplex/Collision (per port) 6.69" x 1.77" x 10.71" (170 x 45 x 267 mm) 2.87 lbs (1.3 kg) 100-240V AC, 50-60 Hz FCC Class A, CE 32 to 122F (0 to 50C) -40 to 158F (-40 to 70C) 20 to 95% Noncondensing 20 to 95% Noncondensing
Package Contents EtherFast 24-Port Switch AC Power Cable User Guide and Registration Card Four rubber feet for mounting the switch on a table Two mounting brackets Six screws for attaching the brackets to the switch
Cisco Consumer Business Group 121 Theory Irvine, CA 92617 USA www.linksys.com Linksys, Cisco and the Cisco Logo are registered trademarks or trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright 2008 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.
The maximum performance for wireless is derived from IEEE Standard 802.11 specifications. Actual performance can vary, including lower wireless network capacity, data throughput rate, range and coverage. Performance depends on many factors, conditions and variables, including distance from the access point, volume of network traffic, building materials and construction, operating system used, mix of wireless products used, interference and other adverse conditions. Specifications are subject to change without notice.

8112410A-ST

Chapter 2: Installation

Planning Your Network
Building a Fast Ethernet network involves a few more topology rules in addition to 10BaseT network rules. These rules specify distance limitations and cabling specifications. Data loss, collisions, and other network problems causing down time are likely to result if the rules below are not followed.
Use UTP Category 5 (EIA 568B, Cat 5) ethernet cabling
with four twisted-pair wires and RJ-45 tips for all Fast Ethernet connections. and workstations. From Switch Hub*
Use the chart below to position any switches, hubs
To Switch or Hub* Hub* Workstation
Max. Distance 100 meters 5 meters 100 meters

Switch or Hub

*Hub refers to any type of 100Mbps hub, including regular hubs and stackable hubs. A 10Mbps hub linked to another 10Mbps hub or a 10/100 hub can span up to 100 meters (328 feet).
No more than two hubs should be uplinked in a row in
a Fast Ethernet network. A set of stacked hubs, which must be stacked with a stacking cable, counts as one hub or node on the network.

Configuration A

In Fast Ethernet, an Ethernet Switch acts as a repeater,
regenerating data signals before passing them on to the next device. Hubs cannot act as repeaters.
Reading an Ethernet Switchs LED Display
Installing an Ethernet Switch
Rack Mounting an Ethernet Switch
Each Ethernet Switch is equipped with three mounting holes on each side for rack mounting in a standard rack. After screwing a mounting bracket into each side of an Ethernet Switch, lift the Switch into your rack and secure the brackets in place with additional screws (not supplied by Linksys).

LED Display

Connecting Nodes to an Ethernet Switch
An Ethernet Switchs front panel has 16 or 24 standard RJ45 ports, depending upon the model, which can connect to workstations, file servers, print servers, and other network peripherals. Each port automatically detects port speed and can operate in either half or full duplex mode. With duplex detection, you can run speeds of 10Mbps, 20Mbps, 100Mbps, up to a maximum of 200Mbps. Each cable connected to an Ethernet Switch must be a UTP Category 5 ethernet network cable with RJ-45 tips, and must not exceed 100 meters (328 feet) in length. Ready-to-use network cabling with precrimped ends are available at most computer retail stores.Automatic Configuration - DHCP

WARNING: The fiber module does not autosense, so you must set it to run at either full or half duplex. Prior to installing the fiber module into the expansion port, use the jumpers on the card as shown in Figure A-1.

Jumper Diagram

WARNING: Changing connectors must be done professionally with the proper tools. If this is your first time working with fiber, consult a networking professional who is familiar with fiber.
Reading a Fiber Modules LED Display
A Fiber Modules LED Display has two LEDs: the Link/Activity (Link/Act) LED and the Full Duplex/Half Duplex(FDX) LED. See the chart below to find out what the status of each LED denotes. Front Panel LED Displays LEDs LEDs Color Status Solid light Link/Act Green Blinking light Solid light FDX Yellow No light Network Status Connection Established Transmitting/ Receiving Full duplex transfer mode Half duplex transfer mode

Appendix B

Specifications

EF3116, EF3124

Standards Ports Speed Per Port Cabling Type LEDs IEEE 802.3, IEEE 802.3u, IEEE 802.1p, IEEE 802.3x 16 or 24 10/100 AutoNegotiation RJ-45 Ports One Fiber Module Expansion Port 10Mbps or 100Mbps (Half Duplex) 20Mbps or 200Mbps (Full Duplex) UTP/STP Category 5 or Better Power Link/Activity (per port) Full Duplex (per port)

EF4116, EF4124

Standards Ports Speed Per Port Cabling Type LEDs IEEE 802.3, IEEE 802.3u, IEEE 802.3x 16 or 24 10/100 AutoNegotiation RJ-45 Ports 10Mbps or 100Mbps (Half Duplex) 20Mbps or 200Mbps (Full Duplex) UTP/STP Category 5 or Better Power Link/Activity (per port) Full Duplex/Collision (per port)

Environmental

Dimensions Weight Power Certification Operating Temp. Storage Temp. Operating Humidity Storage Humidity 7.1" x 1.75" x 16.93" (180 x 44.5 x 430mm) EF3116: 88.16 oz (2500 g) EF3124: 105.76 oz (3000 g) 100-240V AC, 50-60Hz FCC Class A, CE 32 to 122F (0 to 50C) -40 to 158F (40 to 70C) 20 to 95% noncondensing 20 to 95% noncondensing
Dimensions Weight Power Certification Operating Temp. Storage Temp. Operating Humidity Storage Humidity 3.86 x 0.94 x 3.86 (98 x 24 x 98mm) EF4114: 42.4 oz ( 1200 g) EF4124: 45.92 oz (1300 g) 100-240V AC, 50-60Hz FCC Class A, CE 32 to 122F (0 to 50C) -40 to 158F (40 to 70C) 20 to 95% noncondensing 20 to 95% noncondensing
Specifications are subject to change without notice.

Appendix C

Warranty Information
service offerings. This limited warranty shall not apply to such third party software or service offerings. This limited warranty does not guarantee any continued availability of a third partys service for which this products use or operation may require. TO THE EXTENT NOT PROHIBITED BY LAW, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary by jurisdiction. TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT (INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even if any warranty or remedy provided under this limited warranty fails of its essential purpose. Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Connect the equipment to an outlet other than the

receivers

Consult a dealer or an experienced radio/TV technician

for assistance

Safety Notices
Caution: To reduce the risk of fire, use only No.26 AWG
or larger telecommunication line cord.
Do not use this product near water, for example, in a
wet basement or near a swimming pool.
Avoid using this product during an electrical storm.
There may be a remote risk of electric shock from lightning. WARNING: This product contains lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003. Operation is subject to the following two conditions: 1. This device may not cause interference and 2. This device must accept any interference, including interference that may cause undesired operation of the device.
EtherFast 16-Port and 24-Port 10/100 Ethernet Switches 10
etina (Czech) - Informace o ochran ivotnho prosted pro zkaznky v zemch Evropsk unie
Evropsk smrnice 2002/96/ES zakazuje, aby zazen oznaen tmto symbolem na produktu anebo na obalu bylo likvidovno s netdnm komunlnm odpadem. Tento symbol udv, e dan produkt mus bt likvidovn oddlen od bnho komunlnho odpadu. Odpovdte za likvidaci tohoto produktu a dalch elektrickch a elektronickch zazen prostednictvm urench sbrnch mst stanovench vldou nebo mstnmi ady. Sprvn likvidace a recyklace pomh pedchzet potencilnm negativnm dopadm na ivotn prosted a lidsk zdrav. Podrobnj informace o likvidaci starho vybaven si laskav vydejte od mstnch ad, podniku zabvajcho se likvidac komunlnch odpad nebo obchodu, kde jste produkt zakoupili.
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic Equipment (WEEE)
This document contains important information for users with regards to the proper disposal and recycling of Linksys products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:
Dansk (Danish) - Miljinformation for kunder i EU
EU-direktiv 2002/96/EF krver, at udstyr der brer dette symbol p produktet og/eller emballagen ikke m bortskaffes som usorteret kommunalt affald. Symbolet betyder, at dette produkt skal bortskaffes adskilt fra det almindelige husholdningsaffald. Det er dit ansvar at bortskaffe dette og andet elektrisk og elektronisk udstyr via bestemte indsamlingssteder udpeget af staten eller de lokale myndigheder. Korrekt bortskaffelse og genvinding vil hjlpe med til at undg mulige skader for miljet og menneskers sundhed. Kontakt venligst de lokale myndigheder, renovationstjenesten eller den butik, hvor du har kbt produktet, angende mere detaljeret information om bortskaffelse af dit gamle udstyr.

Software in Linksys Products
This product from Cisco-Linksys LLC or from one of its affiliates Cisco Systems-Linksys (Asia) Pte Ltd. or CiscoLinksys K.K. (Linksys) contains software (including firmware) originating from Linksys and its suppliers and may also contain software from the open source community. Any software originating from Linksys and its suppliers is licensed under the Linksys Software License Agreement contained at Schedule 1 below. You may also be prompted to review and accept that Linksys Software License Agreement upon installation of the software Any software from the open source community is licensed under the specific license terms applicable to that software made available by Linksys at www.linksys.com/gpl or as provided for in Schedules 2, 3 and 4 below. Where such specific license terms entitle you to the source code of such software, that source code is upon request available at cost from Linksys for at least three years from the purchase date of this product and may also be available for download from www.linksys.com/gpl. For detailed license terms and additional information on open source software in Linksys products please look at the Linksys public web site at: www.linksys.com/gpl/ or Schedules 2, 3 or 4 below as applicable. BY DOWNLOADING OR INSTALLING THE SOFTWARE, OR USING THE PRODUCT CONTAINING THE SOFTWARE, YOU ARE CONSENTING TO BE BOUND BY THE SOFTWARE LICENSE AGREEMENTS BELOW. IF YOU DO NOT AGREE TO ALL OF THESE TERMS, THEN YOU MAY NOT DOWNLOAD, INSTALL OR USE THE SOFTWARE. YOU MAY RETURN UNUSED SOFTWARE (OR, IF THE SOFTWARE IS SUPPLIED AS PART OF ANOTHER PRODUCT, THE UNUSED PRODUCT) FOR A FULL REFUND UP TO 30 DAYS AFTER ORIGINAL PURCHASE, SUBJECT TO THE RETURN PROCESS AND POLICIES OF THE PARTY FROM WHICH YOU PURCHASED SUCH PRODUCT OR SOFTWARE.

Software Licenses

The software Licenses applicable to software from Linksys are made available at the Linksys public web site at: www.linksys.com. For your convenience of reference, a copy of the Linksys Software License Agreement and the main open source code licenses used by Linksys in its products are contained in the Schedules below.

GNU General Public License is intended to guarantee your freedom to share and change free softwareto make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundations software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser 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 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 authors 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 everyones free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow.

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.

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.
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 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. 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 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

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 END OF SCHEDULE 2

Schedule 3

If this Linksys product contains open source software licensed under Version 2.1 of theGNU Lesser General Public License then the license terms below in this Schedule 3 will apply to that open source software. The license terms below in this Schedule 3 are from the public web site at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
To protect each distributor, we want to make it very clear that there is no warranty for the free library. Also, if the library is modified by someone else and passed on, the recipients should know that what they have is not the original version, so that the original authors reputation will not be affected by problems that might be introduced by others. Finally, software patents pose a constant threat to the existence of any free program. We wish to make sure that a company cannot effectively restrict the users of a free program by obtaining a restrictive license from a patent holder. Therefore, we insist that any patent license obtained for a version of the library must be consistent with the full freedom of use specified in this license. Most GNU software, including some libraries, is covered by the ordinary GNU General Public License. This license, the GNU Lesser General Public License, applies to certain designated libraries, and is quite different from the ordinary General Public License. We use this license for certain libraries in order to permit linking those libraries into non-free programs. When a program is linked with a library, whether statically or using a shared library, the combination of the two is legally speaking a combined work, a derivative of the original library. The ordinary General Public License therefore permits such linking only if the entire combination fits its criteria of freedom. The Lesser General Public License permits more lax criteria for linking other code with the library. We call this license the Lesser General Public License because it does Less to protect the users freedom than the ordinary General Public License. It also provides other free software developers Less of an advantage over competing non-free programs. These disadvantages are the reason we use the ordinary General Public License for many libraries. However, the Lesser license provides advantages in certain special circumstances. For example, on rare occasions, there may be a special need to encourage the widest possible use of a certain library, so that it becomes a de-facto standard. To achieve this, non-free programs must be allowed to use the library. A more frequent case is that a free library does the same job as widely used non-free libraries. In this case, there is little to gain by limiting the free library to free software only, so we use the Lesser General Public License. In other cases, permission to use a particular library in nonfree programs enables a greater number of people to use a large body of free software. For example, permission to use the GNU C Library in non-free programs enables many more people to use the whole GNU operating system, as well as its variant, the GNU/Linux operating system. Although the Lesser General Public License is Less protective of the users freedom, it does ensure that the user of a program that is linked with the Library has the

GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. [This is the first released version of the Lesser GPL. It also counts as the successor of the GNU Library Public License, version 2, hence the version number 2.1.]
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public Licenses are intended to guarantee your freedom to share and change free softwareto make sure the software is free for all its users. This license, the Lesser General Public License, applies to some specially designated software packagestypically librariesof the Free Software Foundation and other authors who decide to use it. You can use it too, but we suggest you first think carefully about whether this license or the ordinary General Public License is the better strategy to use in any particular case, based on the explanations below. When we speak of free software, we are referring to freedom of use, 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 you want it; that you can change the software and use pieces of it in new free programs; and that you are informed that you can do these things. To protect your rights, we need to make restrictions that forbid distributors to deny you these rights or to ask you to surrender these rights. These restrictions translate to certain responsibilities for you if you distribute copies of the library or if you modify it. For example, if you distribute copies of the library, whether gratis or for a fee, you must give the recipients all the rights that we gave you. You must make sure that they, too, receive or can get the source code. If you link other code with the library, you must provide complete object files to the recipients, so that they can relink them with the library after making changes to the library and recompiling it. And you must show them these terms so they know their rights. We protect your rights with a two-step method: (1) we copyright the library, and (2) we offer you this license, which gives you legal permission to copy, distribute and/ or modify the library.
1. You may copy and distribute verbatim copies of the Librarys complete 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 distribute a copy of this License along with the Library. 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. 2. You may modify your copy or copies of the Library or any portion of it, thus forming a work based on the Library, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) The modified work must itself be a software library. b) You must cause the files modified to carry prominent notices stating that you changed the files and the date of any change. c) You must cause the whole of the work to be licensed at no charge to all third parties under the terms of this License. d) If a facility in the modified Library refers to a function or a table of data to be supplied by an application program that uses the facility, other than as an argument passed when the facility is invoked, then you must make a good faith effort to ensure that, in the event an application does not supply such function or table, the facility still operates, and performs whatever part of its purpose remains meaningful. (For example, a function in a library to compute square roots has a purpose that is entirely welldefined independent of the application. Therefore, Subsection 2d requires that any applicationsupplied function or table used by this function must be optional: if the application does not supply it, the square root function must still compute square roots.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Library, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Library, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it.

freedom and the wherewithal to run that program using a modified version of the Library. The precise terms and conditions for copying, distribution and modification follow. Pay close attention to the difference between a work based on the library and a work that uses the library. The former contains code derived from the library, whereas the latter must be combined with the library in order to run.
GNU LESSER GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License Agreement applies to any software library or other program which contains a notice placed by the copyright holder or other authorized party saying it may be distributed under the terms of this Lesser General Public License (also called this License). Each licensee is addressed as you. A library means a collection of software functions and/or data prepared so as to be conveniently linked with application programs (which use some of those functions and data) to form executables. The Library, below, refers to any such software library or work which has been distributed under these terms. A work based on the Library means either the Library or any derivative work under copyright law: that is to say, a work containing the Library or a portion of it, either verbatim or with modifications and/or translated straightforwardly into another language. (Hereinafter, translation is included without limitation in the term modification.) Source code for a work means the preferred form of the work for making modifications to it. For a library, 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 library. Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running a program using the Library is not restricted, and output from such a program is covered only if its contents constitute a work based on the Library (independent of the use of the Library in a tool for writing it). Whether that is true depends on what the Library does and what the program that uses the Library does.

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. 12.If the distribution and/or use of the Library is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Library 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. 13.The Free Software Foundation may publish revised and/or new versions of the Lesser 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 Library 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 Library does not specify a license version number, you may choose any version ever published by the Free Software Foundation. 14.If you wish to incorporate parts of the Library into other free programs whose distribution conditions are incompatible with these, 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

Schedule 4

If this Linksys product contains open source software licensed under the OpenSSL license: This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/). This product includes cryptographic software written by Eric Young (eay@cryptsoft.com). This product includes software written by Tim Hudson (tjh@cryptsoft.com). In addition, if this Linksys product contains open source software licensed under the OpenSSL license then the license terms below in this Schedule 3 will apply to that open source software. The license terms below in this Schedule 3 are from the public web site at http://www.openssl.org/source/license.html. The OpenSSL toolkit stays under a dual license, i.e. both the conditions of the OpenSSL License and the original SSLeay license apply to the toolkit. See below for the actual license texts. Actually both licenses are BSD-style Open Source licenses. In case of any license issues related to OpenSSL please contact openssl-core@openssl.org.

DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. The license and distribution terms for any publicly available version or derivative of this code cannot be changed. i.e. this code cannot simply be copied and put under another distribution license [including the GNU Public License.] END OF SCHEDULE 4
8110310A-ST EtherFast 16-Port and 24-Port 10/100 Ethernet Switches 26