BEFSR81 V2



Tags: Linksys Routers

Similar Questions

  • How to configure BEFSR81 for WiMax 4 G CLEAR network?

    I am moving from cable broadband of CLEAR's WiMax 4 G network, using a BEFSR81 (HW version 3.1, firmware 2.51.4, build 004 30 December 2008) behind the modem Motorola WiMax CPE/150. CLAIRE seems to have its own portal NAT to 192.168.15.1 which is also used as DNS address. My PC (Linux, Kubuntu 8.04) sideways BEFSR81 LAN, I can't do any DNS lookups. If I give the command shell

    "nslookup www.clear.com.

    It displays "no found DNS server." If I specify as the DNS server address 192.168.15.1, i.e.,.

    "nslookup www.clear.com 192.168.15.1.

    the works of nslookup. If I bypass the BEFSR81, everything works.

    It seems as if the BEFSR81 works in a DMZ instead of talking directly to the Internet. Is it possible to configure for this situation?

    I connected the modem again via the router and - surprise - all doesn't work, no DNS problems. All I can think is that there is an update of the firmware, when I turned on the modem. He seemed to take longer than usual to be ready, and when I got to the top of the Web page of modem, I had to repeat the sequence of the first time Setup. So I hope that it stays that way.

  • BEFSR81 v3 after upgrade without browser admin access

    After upgrading my BEFSR81 v3 to the latest firmware (2.51.4, build 001 June 13, 2008) I often have problems of access to the Web interface.

    Immediately after a reboot, I can access and manage the router with Firefox or IE without problem.  But then if I do a configuration change the next day all I get is a blank screen after the login prompt.  The only way to solve the problem is to reboot the router.

    He always asks an id of username/password correctly, and if I get the wrong information I'm getting an authorization failed.  But put the correct password just give the empty window.

    I'm tired of running down in the basement of restart the router every time I need to make a change.  Any idea what's going on?

    My router works better, so I'll give my solution here for others.

    During a chat session on 10 April with the support of Linksys, I explained my problem and was told that I can download an older firmware to the following address, then use TFTP to perform the downgrade.  I checked this address still today while writing this message, and I can't get there more:

    Linksys FTP server

    On 10 April, which worked and I managed to download the 2.50.2 firmware which is old enough, but it's the only version I could find on the site recommended.

    The good news is that worked and my router is functional without obvious problems for about two weeks.

    Today I decided to try upgrading the firmware again.  I am disappointed that Linksys has not addressed this problem somehow because others apparently have similar problems with the "current" firmware version  In fact, there is a certain
    confusion on the Linksys BEFSR81 v3.0 support page.

    As of today (April 26, 2009), the download of the firmware for the BEFSR81 page lists the following:

    2008-06-13
    Ver.2.51.1

    (I'm not that these date and numbers because they do match).

    The file of the firmware provided in the link is actually: 2.51.4.4_20081230_code.bin

    Notes the following version history list:

    Firmware Date: June 13,2008
    Current firmware: Version 2.51.1
    Product PartNo: BEFSR81 v3.x

    2.51.4.4 December 30, 2008
    2.51.4.1 Jun 13,2008
    2.51.3 March 2, 2007
    2.51.1 May 5, 2006
    2.50.4 Nov 15, 2004
    2.50.2 May 19, 2004
    Oct 15, 2003 first version 2.45.5

    So, from my own experience and that of others in these forums, version 2.51.4.4 does not work on the BEFSR81 v3.0.

    There are still 2.51.4.1 on the old Linksys support site:

    Linksys support (old)

    It's the version I have installed now, and so far it seems to work.

    I really wish I could find the version 2.51.3 somewhere that it was the most reliable for me.  Unfortunately, I can't find that anywhere.

    Additional information, another user is in these positions:

    More on version BEFSR81 issues.

  • BEFSR81 Firmware Upgrade Gone Bad?

    Just putchased a new BEFSR81 router.  Using the installation CD, I got it Setup and works very well.  Then, I went to the support of Linksys and found page a more recent version of the firmware.  My version is 2.51.4.  I downloaded the 2.51.4.6 version and installed. I made sure to choose the version for my model 3.1. He appeared to install OK, because I got the message that it was for the page in 5 seconds.  Now I can't go to the web-based configuration page.  I can ping 192.168.1.1 and get a normal response, but by entering that address in my browser just times out.  I turned off the router and even held the reset for 30 seconds, but don't can't go in the web-based configuration page.

    This router is now watered?  Do I need to send it back?

    Thanks for any help on this.

    Found the answer in this thread:

    http://homecommunity.Cisco.com/T5/wired-routers/failed-firmware-upgrade-bricked-BEFSR41-v4-3/TD-p/25...

    Thanks Wizzard!

  • Help with ports BEFSR81 V2 has become inactive

    I have the BEFSR81 V2 and every day at least one of the ports become inactive and the router must be unplugged and plugged in again to reset the ports. In efforts to try to help this problem, I was going to upgrade firmware version 2.44.2 to that on the 2.45.10 site, but when he got download I get a consignment to the model error on upgrade end file. Can someone let me know what happens if there is a problem with the router ports go out or the update of the firmware will fix if all goes well this issue and how to get the firmware updated

    Thank you for the help

    Before trying to upgrade the firmware again, please reset the router by pressing button reset for 40 to 50 seconds long. This should help make the firmware upgrade a success. If it is not always works, try to upgrade the firmware using a tftp utility instead of the router interface based on user's web. The tftp utility can be downloaded from here. Please download and save the IRB on your computer. Once it is saved, run the .exe file. It will ask you the router's IP and password, and then select the file. Select the downloaded firmware file and see if it works.

  • Linksys BEFSR81 evolution etc. port forwarding

    I have a Linksys BEFSR81 and feel the redirection of port evolution wrong etc.

    When I make the changes and click APPLY, ask me for my user name and password, I enter in these then get the Web page may not be changes and the message are not saved

    I am configuring this router for use on THREE XBOX 360 and I can't connect to 1 Vs 100 sometimes I want to make sure that the settings are correct

    Thank you

    Found the solution!

    Just used Google chrome and the router changed perfectly setings.

    Must have been something in internet explore...

    Certainly worth remembering...

    PS online chat help was useless... met with simon, who has offered no help whatsoever just to use the "wages" for the support

    Good luck to all

    Calibra

  • BEFSR81 with WRT54GS to the same network?

    I currently have a LinkSys BEFSR81 connected to a cable modem that I need at least 6 ports wired to my home network.  I also have a WRT54GS which is currently unused, but I want to add to the network so I can have both wireless connectivity.

    Assuming that it is possible, what is the best way to combine the two units in the same network?  The simply connectable WRT54GS downstream of the BEFSR81 via one of the ports open?  I guess I'll have to change the IP address of the wireless device for individually accessible for configuration, check status, etc.  All the other things I have to do?

    Please notify / thank you!

    I found the solution in a previous post, sort of.  Here's what worked for me:

    (1) connect direct PC to WRT54GS

    (2) turn off DHCP and change the WRT54GS IP to 192.168.1.2 (192.168.1.1 for the 'master' BEFSR81 vs).

    (3) save changes

    4) activate wireless, configure security, get access, etc. on the WRT54GS code

    (5) save changes

    (6) re - connect the PC to the original port BEFSR81

    (7) connect the ethernet on BEFSR81 port to a port ethernet on the WRT54GS (NOT the Internet port)

    (8) to enter the code in the WiFi device and make the connection...

  • Should switch BEFSR81 - wireless access point I use?

    Hello

    I have a cable modem connected to a Linksys BEFSR81 switch under the stairs. It distributes points of LAN cable to every room of the House - it worked perfectly for years and continues to do so.

    I need to add wireless (for iPhones etc.). I connected a Netgear WPNT834 DSL wireless router in a LAN points. It broadcasts a SSID I can 'see' on my iPhone - I can connect to it, but cannot access the Internet.

    Looking good, I found the two devices by default the IP 192.168.1.1, so I changed the IP address on the BEFSR81 on 192.168.1.2. Still no access to the Internet via the wireless Netgear.

    I guess that there is a relationship between the two devices share the bandwidth, but I'm at a loss to know where to start.

    These two devices are not compatible, or is there a way to their cascade work together? Or, is it a point of access wireless (linksys or cheaper universal device) that I can plug into one of the LAN edge to add a wireless network to the existing local network?

    Thanks for your help.

    Hi Mikey'it,

    The Netgear and Linksys are compatible when you want to set up this way. You must configure the Netgear router to a wireless switch. As disable the "router" function and DHCP. You must ask the Netgear support how to do it. Because the Linksys router works perfectly, you need to change anything.

  • Using my Linksys BEFSR81 as a second router for Xbox

    Hello.  I bought an Xbox and you need conntect the game unit and a computer to the main router in another room.  There are no ports available so I used my old Linksys BEFSR81 router.  In order to get connectivity, I placed the cable that normally went to the back of the computer in the room where the Xbox is in an open port on the back of the router and then connected the computer and the Xbox of extra cables in two other ports on the back of the router.  It works well; However, we lose connectivity every night during the night.  To restore, I have to unplug my Netgear router and unplug the cable that goes to the Linksys, make my Netgear upward and run it again and THEN plug the Netgear cable which connects the room with the computer and Xbox.

    I was I need to disable DHCP on the router Linksys configuration page, but cannot be cannot access.  It is only to the top of my main Netgear router.  Default IP gateway is the same on both routers, I think.  I can't change because I can't access the Linksys configuration.  I tried to release and rescued by run/cmd/ipconfig/releaset, etc., but it keeps telling me that there is an error at the point of renewal.  Any suggestions how to get into the router configuration page?  Thank you!

    Well, that was the answer - THANKS!  He actually told me that my computer, called by his name, was now manage this computer through the network.  Forget the text, but it worked!

    You are the best - thanks!

  • BEFSR81 v1 WAN speed

    Hi all, I just have to move to a 10 Mbps aDSL connection. I measured the bandwidth of download as about 5 Mbps with the router in the circuit. Without the router (i.e. directly connect the modem ZyXEL 660R to host) and the modem mode bridge or router, I am able to get the full 10 Mbps. I updated the firmware on the router to 2.45.10 and changed the host system RWIN to the value calculated from "optimal" and the MTU to be equal, 1500, on the router & host. One of these values does not affect bandwidth significantly - less popular ACK with superior RWIN, as expected, but no real change in speed. Does anyone have any suggestions? TIA, Art

    N (new): the specification of 10 Mbps in the data sheet only shows you what technical specification follows the port on the router. It is a 10 Mbps port. It works with any other 10 Mbps devices and devices that are backward compatible with 10 Mbps. As FastEthernet or Gigabit Ethernet are backwards compatible you can connect to it even but of course only based on the specification of 10 Mbps.

    The technical specification defines how the port and Cap like looks, wiring of pins etc.. The technical specification says nothing about the speed of the unit using this port is.

    If you buy a computer today data sheet will tell 'Gigabit Ethernet Port' or '1000 Mbps Ethernet Port' or maybe ' 10/100/1000 Ethernet Port. It is once again the technical specification of this ethernet port. It is compatible with Gigabit Ethernet devices. It is not that the device is able to provide data of 1000 Mbps or receive it.

    The same is true for your BEFSR81. The data sheet BEF does not say it is able to provide 10 Mbps routing performance. The data sheet only tells you that the WAN port is a port of Mbit/s Ethernet standard 10. That's all. It is the same as for any other computer spreadsheet data, peripheral NAS, or similar.

    With regard to the switches: you no longer need uplink ports. Basically, all devices are auto-negotiation and they automatically detect what device it is connected, and which cable (crossover or straight) you use. If you buy a switch gigabit today he will most definitely have all ports to auto-negotiation on that and you can connect to another device that you like. You can also connect to your BEF by using port uplink or one of its other ports. The port allows to detect what you have...

    I recommend you to get a gigabit or may even switch 2 If you need more ports. Switches with more ports are generally more expensive, then using 2 small switches. Of course, it depends a little on your LAN configuration. You don't want your main stream crossing 2 switches. But, for example, if you have a few devices in the living room and even more in the Home Office, it can be a good idea to use a switch in the living room and the other in the Home Office. All streaming etc. would remain in life and not hit the switch in the Office at home. If, however, much since stream you life Home Office one switch could be better.

    With regard to the switches, once again, a word of warning. If a switch has 8 full-duplex 10/100/1000 Ethernet ports that it does not say you can connect 8 devices full gigabit speed give and receive at the same time (i.e. full duplex) 1000 Mbps. The switch must receive 8000 Mbps and send 8000 Mbps at the same time. Very often, you will find data sheets do not mention the possible real rate of a switch. More expensive switches usually refer to the flow of the "basket" or something similar. If a switch 8 ports would say he is able to manage 16000 Mbps on the backplane, then you would get full flow possible. But if anything like this mentioned that it is quite possible that it handles than less. You may be able to get transmissions complete gigabit on some ports but may never all at the same time, for example if backplane is only able to handle 4000 Mbit/s. The data sheet tells you that the technical specification of the integrated equipment, but not how fast he is...

    Thus, I'd get the standard gigabit for your local network and a router switches more fast which is capable of managing your internet connection. In view of the increase in the speed of the internet in the future I expect to get a new router in 2-3 years. For the moment, the most important thing would be that it should be able to handle the speed of 100 Mbps WAN. This should work for 2-3 years...

    One place to find the actual flow of routers is smallnetbuilder. Unfortunately, they have not all models of router it...

  • internet connection drops BEFSR81

    MY wired dsl-cable befsr81 router is giving up my connection whenever I try to download a file. I tried the latest firmware and also reset and restart my entire network without result. Whenever the router is running it down my internet, but when I use my cable modem my connection works fine.

    [NOTE] I used to run a befsr41 and he had the same problem and then I went down the firmware to Version 1.45.7 and which corrects the problem, why is there not an option to downgrade to my Befsr81?

    (Mod Note: edited post for the respect of the directive.) (Thank you!)

    Well after test my network works for more than three days in a row, I found the problem.   First let me preface what I say.

    #1: I know that this correction is exactly what was causing my problem and not something else that just happened to heal because I can reproduce this problem over and over again.

    #2: I'm not a noob, you have to ask, "Is the router plugged into SIPPS plug" LOL I've run Windows95 and linux game servers at Lan tournaments and data centers remotely via SSH for more than 7 years.   I think you get the point.

    #3: this is the dumbest bug or whatever you want to call it I've ever seen with any type of hardware/software in my ten years of using computers and operate networks.  AND IT LINKSYS'S FAULT.

    OK here's the fix

    The blue cat5 cable with my BEFSR81 must be used to connect the modem cable to the router.   I repeat that the blue cat5 cable can be used.

    I tried with any other cable I have at home and it is about 14 of them.

    When the blue cable runs from the router to the modem cable, the connection is well and all three of my workstations are connected.

    But when I use another in more blue ethernet cable that came with my linksys router router abandons connection.

    What kind of company are selling their equipment with ethernet cables.

    I thought dell was bad company.  Linksys has reached an all time LOW in my book.

    [EDIT]  And ook, your solution is ridiculas what the problem is.

  • BEFSR81 v3 MAC address filtering

    I have a simple network configuration with wired computers connected to the router and the router connected to the modem.

    My goal is to associate the IPs assigned to MACs. So if I have 4 (A, B, C, D) computers connected to the router, it assigned a specific IP address. If someone disconnected a computer to replace it with their own, the router would recognize the MAC change and could not allow the connection.

    I know that the router can filter certain IP or Mac addresses from the internet, but some evil doer who simply unplug the computer to plug its own would still have access to the local network. That and I have no way of knowing what would MAC the author.

    So far, I have configured my computer to request a static IP (192.168.1.2-5) and the DHCP Server give the rest (6 to 254). Then the IP filter is on the DHCP range to block those from the internet.

    But as I said, I need these completely blocked IPs. Also. If a user connects to a computer windows laptop and guess the static IP address, then the router fortunately would give him access to everything...

    Sorry, I know it's confusing. Bottom line is I have to let only specific Mac to connect to the network. Or SOME form of protection for the cable networks... Super sticky ethernet cables is not an option, although it would solve the problem.

    nicfortin1342 wrote:

    My goal is to associate the IPs assigned to MACs. So if I have 4 (A, B, C, D) computers connected to the router, it assigned a specific IP address. If someone disconnected a computer to replace it with their own, the router would recognize the MAC change and could not allow the connection.

    Cannot do this with the BEFSR81 and it is not a matter of how it is recent - the firmware just does not support, does support an address IP or MAC, some of them not allowing not blocking.  I think that it has been designed as a primitive, rather than a security measure parental control.

    With DHCP servers better (like those of most of the firewall) than the BEFSR81 has, you can configure DHCP to "static maps" so that the lease of the intellectual property will be distributed based on the MAC address, and which would you allow to adjust things until only the DHCP leases to some MAC addresses issue.

    Despite this, MAC addresses can be manually changed and spoofed, such as IP addresses, so neither is really a good measure of security.

    You have to ask in the BEFSR81 firewall features, which, instead, is simply a router.

    In the grand scheme of things, because the MAC and IP addresses can be spoofed, if someone can get physical access to your network, you are pretty well watered unless the traffic is encrypted.

    Russ

  • BEFSR81 and static IP to be assigned to the members of the network

    It's perhaps a little noob question.

    I have to (192.168.1.2 DHCP server OFF, wireless) WRT310N cascading through my BEFSR81 (192.168.1.1, DHCP ON), but for the life of me I can't understand where they were hiding a DHCP reservation. If there is no page for it, I was unable to find anything that looks like a workaround solution. I want to put in place so that the members of my network get the same IP addresses addresses DHCP and time "guests".

    Can someone help me?

    Thank you

    Marshall

    An obvious option is that you can replace the BEFSR81 with almost all new Linksys routers.  You can use the RVS4000 (a DHCP reservation has been added with an update of the firmware), or you could use a wireless router and turn off the wireless.  If you're thinking the RVS4000, know that it can handle only about 15 Mbps of throughput of your Internet connection, so if you have a faster connection, you'll be out of luck with this router.

    If you wish to continue using your BEFSR81, note that Linksys has certain rules very specific on how to manually setup fixed LAN IP addresses in your network devices.  You must follow these rules carefully.

    Rules for use of the LAN IP fixed address on the Linksys routers:

    With Linksys, routers, a fixed (static) IP LAN addresses must be assigned in the device that uses the address. If you enter the fixed address to the computer or the printer, not in the router.

    When you use a Linksys router, any fixed LAN IP address must be outside the DHCP server rank (typically 192.168.1.100 thru 192.168.1.149), and may not end with 0, 1 and 255.

    That's why any fixed LAN IP address would normally be of the order of
    192.168.1.2 thru 192.168.1.99 or
    192.168.1.150 thru 192.168.1.254
    assuming that you always use the default DHCP server line.

    In addition, in the computer, when you configure a static LAN IP address, you need to set the "Subnet mask" 255.255.255.0 and the 'default gateway' on 192.168.1.1 and "DNS server" on 192.168.1.1

    It is also important that the same value static LAN IP address no two devices on your network.

  • Apple Tv and E3000 and BEFSR81

    OK, if you are looking for someone to help me with this problem I have. So I got a new wireless router the E3000 hooked up to my cable BEFSR81 router and I also have an apple TV connected to my local network. Now before I be the E3000 from each computer or would it be Mac or PC would connect to my apple TV I could get my libraries of all my computers on this subject. Now with the new E3000, it won't let me see the computer I connect wirelessly. so all the computers I connected wireless won't let me play my Apple TV and a computer which is cable works with it very well. So im trying to figure out how I can get all my computers using itunes to see the apple TV on my network. any help would be great and let me know if you need more information. Thank you

    I think that computers connected to E3000 are in the different range of IP addresses.

    The BEFSR is connected to port Internet E3000 router?

    What is the IP address of the router BEFSR41 and E3000 router?

    You must use E3000 as access point.

    Follow this link to connect the router to another Linksys router. Follow the type of LAN to LAN connection.

  • BEFSR81 v3.0 Firmware 2.51.4.4 update failed - WARNING! Bad hardware on the Web of Linksys site version

    I bricked just my BEFSR81 v3.0 wired 8-port router 10/100 fast ethernet today because the Web of Linksys site for this router connects to new firmware 13/06/2008 Ver.2.51.4.4 but the name of download file is for the hardware version v3.1 !  Thanks a lot for Linksys to make umpteenth screwup making me break my material.  I really wonder if this is due to incompetence or malevolance?

    FW_BEFSR81v3.1_2.51.4.4_20081230_code.bin

    BEFSR81 EtherFast® Cable/DSL Router with 8-Port Switch - v3.0 - downloads

    Firmware

    I tried the soft reset, hard reset and shorting pins 15 & 16 for mode of security built on the flashrom but no luck.  The router responding to pings to 192.168.1.1 but has all ports closed according to NMap and won't take any additions windows tftp.exe TFTP because it puts error "invalid password." When issuing the '-i 192.168.1.1 tftp.exe firmware.bin "downgrade to firmware 2.51.4.1 previous command.

    I just find the TFTP2.exe utility that takes a password as a parameter and I managed to downgrade my router with success and restore it back to all the features!

  • BEFSR81 to a BEFSR41

    I'm trying to plug a model BEFSR41 for a model BEFSR81 router, which is my main router to my cable modem.  I was not able to locate any instructions as to how should I plug it.  Someone at - it ideas?  Thanks for any help.

    Ed

    hehehehe

    Thank you!

    And I would have thought that the answer to your question on the port of #8 / uplink would be in the owner's manual, but I just checked and I'll be @# $% ^ ed if it isn't here. Maybe Linksys was assume a certain level of knowledge base and experience of their customers. And that's a bad assumption in any profession in my experience.

    The link port rising/MDX/MDXi on any network device is the port where you connect another network downstream device so that you don't have to buy or make a connecting network cable. So Bozo77 is the port you use to connect to a network switch. But only ONE of the 2 devices must use their uplink port to connect to the other device.

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