USRobotics USR5461

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= Installing DD-WRT on a US Robotics USR5461 = = Installing DD-WRT on a US Robotics USR5461 =
== Introduction == == Introduction ==
-The major hardware features of this router are listed in [http://www.dd-wrt.com/wiki/index.php/Supported_Devices#US_Robotics this table]. +DD-WRT is a third party developed firmware for wireless routers based on a Broadcom or Atheros chip reference design.
-As of now, the Reset button on this router is not recognized by DD-WRT firmware. Therefore, in place of the so-called "30/30/30 reset" which requires a fully functioning Reset button, other steps will be taken.+ 
 +The major hardware features of USR5461 router are listed in this table: <br>http://www.dd-wrt.com/wiki/index.php/Supported_Devices#US_Robotics
 +
 +The <RESET> button on this router is not recognized by DD-WRT firmware. Therefore, in place of the so-called "30/30/30 Reset" which requires a fully functioning <RESET> button, other steps will be taken.
== DD-WRT versions == == DD-WRT versions ==
-This router has only 2MB of flash memory, but its 128K CFE allows either micro or micro-plus builds.+USR5461 has only 2MB of NVRAM which contains 128KB compressed CFE (Boot Loader). The rest of it (1870 KB) contains OEM/USR firmware.
-See the [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043 Firmware Recommendations] forum thread for the latest recommended build. +
-For Brainslayer builds, use the micro_generic files.+Therefore, you have to select either DD-WRT '''micro''' builds (file size about 1700 KB) or DD-WRT '''micro-plus''' builds (file size less than 1870 KB) for installation on USR5461.
-The Eko "NEWD" builds also work well with this router. Do not use "NEWD2" or "VINT".+ 
 +Furthermore, you must use the '''generic''' version of these builds since you will be doing a first time installation of DD-WRT firmware on your original USR5461 router.
 +
 +See DD-WRT Forum Firmware Recommendations at: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043
 + 
 +Note: In the example bellow we will use Brain Slayer's 13525 build: <br>
 +dd-wrt.v24_micro_generic.bin - 1,769,472 B - 12/28/2009
 + 
 +Download link: <br>
 +ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/12-28-09-r13525/broadcom/
= Preparing to Flash = = Preparing to Flash =
-This instruction page is written assuming your router is running an US Robotics factory firmware, and your PC is running a version of Microsoft Windows. It is expected that Linux users and those already running DD-WRT firmware can adapt these instructions to their situation.+This document is written assuming your USR5461 router is running OEM/USR firmware, and your PC is running a version of Microsoft Windows.
-Please read and understand all instructions for this section and whichever flashing method you will use before starting the entire procedure.+Please, read and understand all instructions in this section and whichever flashing method you will use before starting the entire procedure.
-1. [http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486 Read the Peacock Thread.] There is a lot of background information there to help you understand what is going on, help prevent mistakes (not to mention bricked routers) and help you to know what to do if something goes wrong.+1. Disable '''Media Sensing''' feature for TCP/IP in Windows – read and implement Microsoft article #239924 "How to disable the Media Sensing feature for TCT/IP in Windows" – http://support.microsoft.com/kb/239924 .
-2. Download the desired firmware. You will not have Internet access from your PC while flashing the router.+2. Create a new folder on your computer Desktop and name it '''usr5461'''. Download/save the selected DD-WRT firmware image file to '''Desktop\usr5461'''.
 +In our example this is "dd-wrt.v24_micro_generic.bin".
-3. Connect your PC to a LAN port on the router with a cable and disconnect all other clients. Do not flash the router over a wireless connection.+3. Connect your PC to a LAN port of the router with an Ethernet cable.
 +DISCONNECT ALL OTHER ROUTER CLIENTS (WIRELESS AND/OR WIRED).
 +Do not flash the router over a wireless connection!
-4. Reset your router to USR factory firmware defaults. Hold down the Reset button until the LEDs stop cycling and reach a stable pattern for at least 10 seconds (a single LAN LED may occasionally flicker at the end). Release the button. (This method to restore defaults only works for US Robotics factory firmware as of this writing.)+4. Reset your USR5461 router to factory (USR) default settings:<br>
 +- Press and hold the <RESET> button on the router for 10 seconds; release the button.<br>
 +- Wait until router control lights stabilize.
-5. The default LAN IP Address of '''USR5461''' router with US Robotics factory firmware and CFE is '''192.168.2.1'''. Your computer's network interface will need a Static IP Address on the same network to reliably load DD-WRT firmware onto the router.+5. USR5461 default LAN IP address is '''192.168.2.1'''
 +Your PC LAN interface/adapter will need a static IP address on the same LAN (192.168.2.x) to reliably transfer DD-WRT firmware image onto the router.
-On Windows XP: Control Panel, Network Connections, right-click on Local Area Connection icon and select Properties.+Windows XP: '''Start - Control Panel - Network Connections'''; double-click on '''Local Area Connection''' icon:
-On Windows Vista: Control Panel, Network and Sharing Center.+In '''Local Area Connection Properties''' window, double-click on '''Internet Protocol (TCP/IP)''', and set the following static IP address for your PC:
 +--------------------------------------------------------------------------------
 +IP Address: '''192.168.2.101'''
-In the properties of the Local Area Connection, Internet Protocol TCP/IP, set the static IP address:+Subnet Mask: '''255.255.255.0'''
- IP Address: 192.168.2.101+Default Gateway: '''192.168.2.1'''
- Subnet Mask: 255.255.255.0+
- Default Gateway: 192.168.2.1+
-Click OK+--------------------------------------------------------------------------------
 +Click < OK > button.
-6. Now perform the flash.+6. Start your Web Browser and enter "<nowiki>http://192.168.2.1</nowiki>" in its location/address line to access USR5461 Web UI. USR Setup Wizard will start - it is an introductory configuration procedure you must complete in order to make the router functional: <br>
 +- Accept the default settings Setup Wizard will display on three successive Web pages.<br>
 +- Change/Enter the following settings: <br>
 +- In '''Setup 2''' page, '''Security''' section: -Method: "'''None'''";<br>
 +- In '''Setup 3''' page, '''Router Login''' section: -User Name: "'''root'''"; -Password: "'''admin'''".<br>
 +After you complete USR Setup Wizard, close your Web Browser.
= Performing the Flash = = Performing the Flash =
Use one of the firmware loading methods listed below. Use one of the firmware loading methods listed below.
== Method 1: tftp == == Method 1: tftp ==
-This section generally assumes you will be using the Tftp2 GUI utility. Those familiar with the command line version can of course adapt these steps as needed.+1. Power off the router (unplug the power supply connector from the router).
-1. Open a command prompt window and type '''ping -t 192.168.2.1''' and hit enter. Leave this window open with the ping running.+2. Open a '' Command-Line''' window ('''Start – Run...''' – type in "'''cmd'''" and press <'''OK'''> button):<br>
 +- Resize the window to cover the right half of your PC display;<br>
 +- ENTER the following commands:<br>
 +--------------------------------------------------------------------------------
 +>'''cd desktop\usr5461'''
-2. Start tftp2.exe (windows GUI for tftp). Configure the following:+>'''dir'''
- Server : 192.168.2.1+............
- Password :+
- File : dd-wrt.v24-12774_NEWD_micro-plus.bin (or whatever the version you downloaded above)+
-3. Power off the router - the ping reply should report errors. +--------------------------------------------------------------------------------
 +The '''dir''' command will list the contents of '''usr5461''' folder. Check the presence of DD-WRT firmware image file and its size:<br>
 +'''1,769,472 dd-wrt.v24_micro_generic.bin '''
-4. Wait for 10 sec and plug power back to the router.+3. Type in the following command but DO NOT PRESS <'''ENTER'''> key on your PC keyboard:<br>
 +--------------------------------------------------------------------------------
 +>'''tftp –i 192.168.2.1 put dd-wrt.v24_micro_generic.bin'''
-5. The timing of this step is very important. You will get responses with TTL=100 within a few seconds when the router is powered on. As soon as you see the FIRST ping reply, click on Upgrade within Tftp2.exe. If you see TTL=64 before you clicked Upgrade, you waited too long to start the tftp. (If you miss this step, back up to step 3 and try again.) +--------------------------------------------------------------------------------
-6. You will see the firmware image is loading to the router. After Tftp2 reports success, stop the ping in the command prompt window (control-C).+4. Open a second '''Command-Line''' window:<br>
 +- Resize it to cover the left half of your PC display;<br>
 +- Type in the following command and press <ENTER> key on your PC keyboard - you should see continuous error messages:<br>
 +--------------------------------------------------------------------------------
 +>'''ping –t –w 60 192.168.2.1'''
 +
 +'''Destination host unreachable.'''
-7. Wait 5 minutes after the tftp has completed, regardless of whether the wireless appears stable before then. Then cycle the power.+.............
-8. Proceed to "After the Flash" below.+--------------------------------------------------------------------------------
-You can also flash back the original factory firmware as described in this method. Just change the file location in Tftp2.exe to point to the factory firmware and start with the current router IP. (Might need a USR factory firmware without the 28-byte "USR0" header; must check this.)+4. Click on the right '''Command-Line''' window to make it active;<br>
 +- Plug the power supply connector back into the router;<br>
 +- Observe the left '''Command-Line''' window – '''''as soon as you see the first successful ping replay from the router, press for one second <ENTER> key on your PC keyboard''''':<br>
 +--------------------------------------------------------------------------------
 +>ping –t –w 50 192.168.2.1
-== Method 2: the factory firmware's web User Interface ==+Destination host unreachable.
-It is possible to flash DD-WRT for the first time using the upgrade option from the USR firmware's web interface. The trick is to make the DD-WRT firmware file look like a USR firmware file by adding a special header and changing the file extension to '''.usr''' such that that the USR firmware will accept it.+......
- +
-1. Download the header file [http://www.dd-wrt.com/phpBB2/download.php?id=6958 usr5461_hdr.bin]+
- +
-2. Open a command prompt window and issue the command:+
- +
- copy /b usr5461_hdr.bin + dd-wrt_xxxxxxx.bin result_file.usr +
-This performs a binary copy of the USR header and the DD-WRT image to make a single file with the header at the front. Doublecheck that result_file.bin is '''exactly 28 bytes longer''' than the dd-wrt_xxxxxxx.bin file.+Destination host unreachable.
 + 
 +'''Replay from 192.168.2.1: bites=32 time=3ms TTL=100'''
 + 
 +......
 + 
 +--------------------------------------------------------------------------------
 +This should start '''tftp''' file transfer to the router; there will be 7-9 more ping replays like the first one (during this time the file transfer to router RAM completes. At the end, '''tftp''' will report in the right '''Command-Line''' window:<br>
 +"'''Transfer successful: 1769472 bytes in 8 seconds, 221184 bytes/s'''"<br>
 +Close both '''Command-Line''' windows.
 + 
 +5. Wait 5 minutes after '''tftp''' have reported a successful file transfer. During this time the router is flashing the new firmware image into NVRAM, and then reboots, all on its own.
 + 
 +6. Proceed to "After the Flash" below.
 + 
 +Note: You can also flash back an USR firmware for USR5461 as described in this method. Just use the appropriate resources:<br>
 +1. Download the latest final USR firmware for USR5461 router from USR Web page:<br>
 +http://www.usr.com/support/product-template.asp?prod=5461 .<br>
 +Currently this is: "'''USR5461-v.3.93.35.0.8.usr - 1.8 MB - 10-25-06'''"<br>
 +Download/save the file to '''Desktop\USR5461''' folder. This file has too many dots in its name – Windows '''tftp''' cannot open such a file.<br>
 +RENAME the file to: '''USR5461-v3_93_35_08.usr'''
-3. Open the USR web UI at http://192.168.2.1 in your browser, navigate to the device upgrade page and upload the result_file.usr created above.+2. Use the current LAN IP address of the router and the renamed USR firmware image file in the steps above.
- +
-4. Wait 5 minutes after the upgrade has completed, regardless of whether the wireless is stable before then. Then cycle the power.+
-5. Proceed to "After the Flash" below.+== Method 2: the factory firmware's web User Interface ==
-= After the Flash =+It is possible to install a '''generic''' version of DD-WRT firmware onto an original USR5461 router using the <'''Upgrade Router'''> option in USR firmware's Web GUI. The trick is to make DD-WRT firmware image file look like an USR firmware image file, such that the original USR firmware on USR5461 would accept it as an upgrade source. You have to create a custom "USR-like" firmware image file by:
-1. Change the static IP on your PC back to DHCP (automatic): +
 +- Adding a special, 28-byte header "USR0…" to DD-WRT firmware image file;
-On Windows XP, Control Panel/Network Connections/right-click on Local Area Connection icon and select Properties.+- Naming the new file with ".usr" extension.
-On Windows Vista, Control Panel/Network and Sharing Center.+
-In the properties of the Local Area Connection, Internet Protocol TCP/IP, set:+1. Download the header file '''usr5461_hdr.bin''' from: <http://www.dd-wrt.com/phpBB2/download.php?id=6958>. Save it to '''Desktop\usr5461''' folder.
- Obtain IP address Automatically+
- Obtain DNS Server Automatically+
-Click OK. Your PC will be assigned a new IP address on the 192.168.1.x network by the router, which is now running DD-WRT.+2. Open a '''Command-Line''' window ('''Start – Run...''' - type in "'''cmd'''" and press <'''OK'''> button); ENTER the following commands:
 +--------------------------------------------------------------------------------
 +>'''cd desktop\usr5461'''
-Now you must issue commands to configure some unique properties of the USR5461 when running DD-WRT.+>'''dir'''
-2. Go to the command prompt window and issue the command+......
- telnet 192.168.1.1+>'''copy /b usr5461_hdr.bin + dd-wrt-v24_micro_generic.bin usr5461-13525_micro-generic.usr'''
- username: root+
- password: admin+
-Now you are in the DD-WRT shell. +......
 +
 +>'''dir'''
-3. Issue these commands, pausing a few seconds between them:+......
 +
 +--------------------------------------------------------------------------------
- erase nvram+The '''copy'''-command performs a BINARY ("'''/b'''") copy of the USR header AND ("'''+'''") the DD-WRT firmware image file to make a single "USR-like" firmware image file.
- reboot+Bellow the last '''dir'''-command, double-check that the new file is exactly 28 bytes longer than the original DD-WRT firmware image file. In our example:
 +--------------------------------------------------------------------------------
 +'''1,769,472 dd-wrt.v24_micro_generic.bin'''
 +
 +'''1,769,500 usr5461-13525_micro_generic.usr'''
 +
 +..........................
-This clears the NVRAM in place of the "30/30/30 reset". (The reboot is necessary here because after the erase, some outdated parameters are retained in RAM which might be written to NVRAM during a subsequent operation, but the reboot prevents this.) +'''28 usr5461_hdr.bin'''
 +
 +--------------------------------------------------------------------------------
 +3. Start your Web Browser, and enter "'''<nowiki>http://192.168.2.1</nowiki>'''" in its location/address line to access USR5461 Web UI:
-4. After reboot, telnet into the shell again (as in Step 2 above). Issue these commands:+- Click on <'''Device'''>: in '''Upgrade Router''' section, click on <'''Browse'''> button; find and select the new file created in Step 2 ('''usr5461-13525_micro_generic.bin''');
 +
 +- Click on <'''Upgrade'''> button and WAIT until a message appears: "'''The router has been upgraded'''" (it takes about three minutes);
- nvram set et0macaddr=00:C0:49:YO:UR:N1+- WAIT for a second message to appear: "'''Wait until router reboots'''";
- nvram set il0macaddr=00:C0:49:YO:UR:N1+
- nvram set wan_hwaddr=00:C0:49:YO:UR:N2+
-where+- Wait until router control lights stabilize, and then close your Web Browser.
-00:C0:49:YO:UR:N1 = the lowest MAC listed on the bottom of YOUR router and 00:C0:49:YO:UR:N2 = 00:C0:49:YO:UR:N1 + 1. +
-These commands configure the unique MAC addresses reserved for your router, since DD-WRT on the USR5461 series defaults to a generic (possibly non-unique) MAC. Double-check that your numbers are correct; only digits 0 (zero) through 9 and letters A through F are allowed. Take care with the hexadecimal math; for example, 89+1=8A, not 90 here.+4. Proceed to "After the Flash" bellow.
 + 
 += After the Flash =
-5. Now issue these commands, pausing a few seconds between them:+1. Check the current LAN IP address of the router with the '''ping''' command in a '''Command-Line ''' window. Try first USR default LAN IP address: ">'''ping 192.168.2.1'''". If you get four successful replays, this is the current LAN IP address of the router. Proceed to Point 4 bellow.
- nvram commit+2. If you get four error messages, try DD-WRT default LAN IP address – 192.168.1.1 . Your PC LAN interface\adapter will need a static IP address on the same LAN (192.168.1.x) in order to TCP/IP connect to the router. You have to:<br>
- reboot+- Change the static IP address of your PC LAN interface/adapter: <'''IP Address: ''192.168.1.101'''''>;<br>
 +- Change the IP address of <'''Default Gateway: ''192.168.1.1'''''>.<br>
 +Note: Consult "Preparing to Flash" section, Point 5.
-After the router reboots, you may access the DD-WRT router configuration webpages at DD-WRT's default of http://192.168.1.1. Further configuration options of a more general nature are beyond the scope of this device-specific page at this time.+3. In the '''Command-Line''' window you enter: ">'''ping 192.168.1.1'''". If you get four successful replays, this is the current LAN IP address of the router.
-6. Enjoy!+4. Start your Web Browser:<br>
 +- In its location/address line, enter the current LAN IP address of the router – "'''<nowiki>http://192.168.x.1</nowiki>'''";<br>
 +- The DD-WRT firmware Web UI should open - complete the router configuration as you want it.
= For More Information = = For More Information =
Line 144: Line 212:
[[Category:Networking hardware tutorials]] [[Category:Networking hardware tutorials]]
 +[[Category:USRobotics guides]]

Current revision

Contents

[edit] Installing DD-WRT on a US Robotics USR5461

[edit] Introduction

DD-WRT is a third party developed firmware for wireless routers based on a Broadcom or Atheros chip reference design.

The major hardware features of USR5461 router are listed in this table:
http://www.dd-wrt.com/wiki/index.php/Supported_Devices#US_Robotics

The <RESET> button on this router is not recognized by DD-WRT firmware. Therefore, in place of the so-called "30/30/30 Reset" which requires a fully functioning <RESET> button, other steps will be taken.

[edit] DD-WRT versions

USR5461 has only 2MB of NVRAM which contains 128KB compressed CFE (Boot Loader). The rest of it (1870 KB) contains OEM/USR firmware.

Therefore, you have to select either DD-WRT micro builds (file size about 1700 KB) or DD-WRT micro-plus builds (file size less than 1870 KB) for installation on USR5461.

Furthermore, you must use the generic version of these builds since you will be doing a first time installation of DD-WRT firmware on your original USR5461 router.

See DD-WRT Forum Firmware Recommendations at: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043

Note: In the example bellow we will use Brain Slayer's 13525 build:
dd-wrt.v24_micro_generic.bin - 1,769,472 B - 12/28/2009

Download link:
ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/12-28-09-r13525/broadcom/

[edit] Preparing to Flash

This document is written assuming your USR5461 router is running OEM/USR firmware, and your PC is running a version of Microsoft Windows.

Please, read and understand all instructions in this section and whichever flashing method you will use before starting the entire procedure.

1. Disable Media Sensing feature for TCP/IP in Windows – read and implement Microsoft article #239924 "How to disable the Media Sensing feature for TCT/IP in Windows" – http://support.microsoft.com/kb/239924 .

2. Create a new folder on your computer Desktop and name it usr5461. Download/save the selected DD-WRT firmware image file to Desktop\usr5461. In our example this is "dd-wrt.v24_micro_generic.bin".

3. Connect your PC to a LAN port of the router with an Ethernet cable. DISCONNECT ALL OTHER ROUTER CLIENTS (WIRELESS AND/OR WIRED). Do not flash the router over a wireless connection!

4. Reset your USR5461 router to factory (USR) default settings:
- Press and hold the <RESET> button on the router for 10 seconds; release the button.
- Wait until router control lights stabilize.

5. USR5461 default LAN IP address is 192.168.2.1 Your PC LAN interface/adapter will need a static IP address on the same LAN (192.168.2.x) to reliably transfer DD-WRT firmware image onto the router.

Windows XP: Start - Control Panel - Network Connections; double-click on Local Area Connection icon: In Local Area Connection Properties window, double-click on Internet Protocol (TCP/IP), and set the following static IP address for your PC:

IP Address: 192.168.2.101

Subnet Mask: 255.255.255.0

Default Gateway: 192.168.2.1

Click < OK > button.

6. Start your Web Browser and enter "http://192.168.2.1" in its location/address line to access USR5461 Web UI. USR Setup Wizard will start - it is an introductory configuration procedure you must complete in order to make the router functional:
- Accept the default settings Setup Wizard will display on three successive Web pages.
- Change/Enter the following settings:
- In Setup 2 page, Security section: -Method: "None";
- In Setup 3 page, Router Login section: -User Name: "root"; -Password: "admin".
After you complete USR Setup Wizard, close your Web Browser.

[edit] Performing the Flash

Use one of the firmware loading methods listed below.

[edit] Method 1: tftp

1. Power off the router (unplug the power supply connector from the router).

2. Open a Command-Line window ('Start – Run... – type in "cmd" and press <OK> button):
- Resize the window to cover the right half of your PC display;
- ENTER the following commands:

>cd desktop\usr5461

>dir

............

The dir command will list the contents of usr5461 folder. Check the presence of DD-WRT firmware image file and its size:
1,769,472 dd-wrt.v24_micro_generic.bin

3. Type in the following command but DO NOT PRESS <ENTER> key on your PC keyboard:

>tftp –i 192.168.2.1 put dd-wrt.v24_micro_generic.bin

4. Open a second Command-Line window:
- Resize it to cover the left half of your PC display;
- Type in the following command and press <ENTER> key on your PC keyboard - you should see continuous error messages:

>ping –t –w 60 192.168.2.1

Destination host unreachable.

.............

4. Click on the right Command-Line window to make it active;
- Plug the power supply connector back into the router;
- Observe the left Command-Line window – as soon as you see the first successful ping replay from the router, press for one second <ENTER> key on your PC keyboard:

>ping –t –w 50 192.168.2.1

Destination host unreachable.

......

Destination host unreachable.

Replay from 192.168.2.1: bites=32 time=3ms TTL=100

......

This should start tftp file transfer to the router; there will be 7-9 more ping replays like the first one (during this time the file transfer to router RAM completes. At the end, tftp will report in the right Command-Line window:
"Transfer successful: 1769472 bytes in 8 seconds, 221184 bytes/s"
Close both Command-Line windows.

5. Wait 5 minutes after tftp have reported a successful file transfer. During this time the router is flashing the new firmware image into NVRAM, and then reboots, all on its own.

6. Proceed to "After the Flash" below.

Note: You can also flash back an USR firmware for USR5461 as described in this method. Just use the appropriate resources:
1. Download the latest final USR firmware for USR5461 router from USR Web page:
http://www.usr.com/support/product-template.asp?prod=5461 .
Currently this is: "USR5461-v.3.93.35.0.8.usr - 1.8 MB - 10-25-06"
Download/save the file to Desktop\USR5461 folder. This file has too many dots in its name – Windows tftp cannot open such a file.
RENAME the file to: USR5461-v3_93_35_08.usr

2. Use the current LAN IP address of the router and the renamed USR firmware image file in the steps above.

[edit] Method 2: the factory firmware's web User Interface

It is possible to install a generic version of DD-WRT firmware onto an original USR5461 router using the <Upgrade Router> option in USR firmware's Web GUI. The trick is to make DD-WRT firmware image file look like an USR firmware image file, such that the original USR firmware on USR5461 would accept it as an upgrade source. You have to create a custom "USR-like" firmware image file by:

- Adding a special, 28-byte header "USR0…" to DD-WRT firmware image file;

- Naming the new file with ".usr" extension.

1. Download the header file usr5461_hdr.bin from: <http://www.dd-wrt.com/phpBB2/download.php?id=6958>. Save it to Desktop\usr5461 folder.

2. Open a Command-Line window (Start – Run... - type in "cmd" and press <OK> button); ENTER the following commands:

>cd desktop\usr5461

>dir

......

>copy /b usr5461_hdr.bin + dd-wrt-v24_micro_generic.bin usr5461-13525_micro-generic.usr

......

>dir

......

The copy-command performs a BINARY ("/b") copy of the USR header AND ("+") the DD-WRT firmware image file to make a single "USR-like" firmware image file. Bellow the last dir-command, double-check that the new file is exactly 28 bytes longer than the original DD-WRT firmware image file. In our example:

1,769,472 dd-wrt.v24_micro_generic.bin

1,769,500 usr5461-13525_micro_generic.usr

..........................

28 usr5461_hdr.bin

3. Start your Web Browser, and enter "http://192.168.2.1" in its location/address line to access USR5461 Web UI:

- Click on <Device>: in Upgrade Router section, click on <Browse> button; find and select the new file created in Step 2 (usr5461-13525_micro_generic.bin);

- Click on <Upgrade> button and WAIT until a message appears: "The router has been upgraded" (it takes about three minutes);

- WAIT for a second message to appear: "Wait until router reboots";

- Wait until router control lights stabilize, and then close your Web Browser.

4. Proceed to "After the Flash" bellow.

[edit] After the Flash

1. Check the current LAN IP address of the router with the ping command in a Command-Line window. Try first USR default LAN IP address: ">ping 192.168.2.1". If you get four successful replays, this is the current LAN IP address of the router. Proceed to Point 4 bellow.

2. If you get four error messages, try DD-WRT default LAN IP address – 192.168.1.1 . Your PC LAN interface\adapter will need a static IP address on the same LAN (192.168.1.x) in order to TCP/IP connect to the router. You have to:
- Change the static IP address of your PC LAN interface/adapter: <IP Address: 192.168.1.101>;
- Change the IP address of <Default Gateway: 192.168.1.1>.
Note: Consult "Preparing to Flash" section, Point 5.

3. In the Command-Line window you enter: ">ping 192.168.1.1". If you get four successful replays, this is the current LAN IP address of the router.

4. Start your Web Browser:
- In its location/address line, enter the current LAN IP address of the router – "http://192.168.x.1";
- The DD-WRT firmware Web UI should open - complete the router configuration as you want it.

[edit] For More Information

The steps above were gathered from various threads in the dd-wrt forums. These threads in particular contain much helpful information:

[USR5461 compatibility]

[USR 5461]

Thank you to all who contributed. (SiliconWarrior, modervador, many others whose forum posts must not escape recognition.)

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