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toh:tp-link:tl-wdr4900 [2014/02/24 14:07]
tenninjas
toh:tp-link:tl-wdr4900 [2015/01/05 08:02] (current)
jeffkletsky [Failsafe / reset]
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   * Forum https://​forum.openwrt.org/​viewtopic.php?​id=42062   * Forum https://​forum.openwrt.org/​viewtopic.php?​id=42062
 +
 +As of May 2014, TP-Link appear to be discontinuing the TL-WDR4900 in Great Britain.
  
 ===== Supported Versions ===== ===== Supported Versions =====
 ^ Version/​Model ^ S/N ^ Release Date ^ OpenWrt Version Supported ^ Model Specific Notes ^ ^ Version/​Model ^ S/N ^ Release Date ^ OpenWrt Version Supported ^ Model Specific Notes ^
-| v1.0 world-wide | - | 2013-01-22 | trunk [[https://​dev.openwrt.org/​changeset/​36051|r36051]]  ​| Freescale PPC w/2 Atheros radio chips 3 internal antennas (2.4Ghz) and 3 external antennas (5Ghz) | +| v1.0 world-wide | - | 2013-01-22 | Barrier Breaker 14.07 | Freescale PPC w/2 Atheros radio chips 3 internal antennas (2.4Ghz) and 3 external antennas (5Ghz) | 
-| v1.3 world-wide | - | 2013 | trunk | http://​downloads.openwrt.org/​snapshots/trunk/​mpc85xx/ ​ +| v1.3 world-wide | - | 2013 | Barrier Breaker 14.07 | http://​downloads.openwrt.org/​barrier_breaker/14.07/mpc85xx/generic/ ​
-| v2.0 PRC only   | - | 2013-01-22 | trunk [[https://​dev.openwrt.org/​changeset/​39637|r39637]] ​| 6 external antennas, available in PRC only. http://​downloads.openwrt.org/​snapshots/trunk/ar71xx/ |+| v2.0 PRC only   | - | 2013-01-22 | Barrier Breaker 14.07 | 6 external antennas, available in PRC only. https://​downloads.openwrt.org/​barrier_breaker/14.07/ar71xx/generic/ | 
 + 
 +Note that BB 14.07 comes without Luci (the Web GUI) preinstalled.
  
 ===== Hardware ===== ===== Hardware =====
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 | **RAM-Chip:​** ​                               | [[http://​www.skhynix.com/​inc/​pdfDownload.jsp?​path=/​datasheet/​pdf/​graphics/​H5TQ1G63DFR(Rev1.1).pdf|H5TQ1G63DFR]] | [[http://​www.skhynix.com/​products/​consumer/​view.jsp?​info.ramKind=03&​info.serialNo=H5PS5162GFR|H5PS5162GFR]] | | **RAM-Chip:​** ​                               | [[http://​www.skhynix.com/​inc/​pdfDownload.jsp?​path=/​datasheet/​pdf/​graphics/​H5TQ1G63DFR(Rev1.1).pdf|H5TQ1G63DFR]] | [[http://​www.skhynix.com/​products/​consumer/​view.jsp?​info.ramKind=03&​info.serialNo=H5PS5162GFR|H5PS5162GFR]] |
 | **RAM size:​** ​                               | 128 MiB | 128 MiB   | | **RAM size:​** ​                               | 128 MiB | 128 MiB   |
-| **Wireless1:​** ​                              | Chip: AR9381-AL1A for 2.4GHz ​ | SoC: QCA9558-AT4A w/ 3x3 MIMO for 2.4Ghz ​          |+| **Wireless1:​** ​                              | Chip: AR9381-AL1A ​w/ 3x3 MIMO for 2.4GHz ​ | SoC: QCA9558-AT4A w/ 3x3 MIMO for 2.4Ghz ​          |
 | **Wireless2:​** ​                              | Chip: AR9580-AR1A w/ 3x3 MIMO for 5Ghz    | Chip: AR9580-AR1A w/ 3x3 MIMO for 5Ghz | | **Wireless2:​** ​                              | Chip: AR9580-AR1A w/ 3x3 MIMO for 5Ghz    | Chip: AR9580-AR1A w/ 3x3 MIMO for 5Ghz |
 | **[[doc:​techref:​swconfig|Switch]]:​** ​        | AR8327N-AL1A ​                             | AR8327N-BL1A ​ | | **[[doc:​techref:​swconfig|Switch]]:​** ​        | AR8327N-AL1A ​                             | AR8327N-BL1A ​ |
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 OpenWRT may be installed [[doc/​howto/​generic.flashing#​method.1via.oem.firmware|via OEM firmware]] on both versions. OpenWRT may be installed [[doc/​howto/​generic.flashing#​method.1via.oem.firmware|via OEM firmware]] on both versions.
  
-v1: [[http://​downloads.openwrt.org/​snapshots/trunk/​mpc85xx/​openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-factory.bin|openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-factory.bin]]+v1: [[http://​downloads.openwrt.org/​barrier_breaker/14.07/mpc85xx/generic/​openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-factory.bin|openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-factory.bin ]]
  
-v2: [[http://​downloads.openwrt.org/​snapshots/trunk/​ar71xx/​openwrt-ar71xx-generic-tl-wdr4900-v2-squashfs-factory.bin|openwrt-ar71xx-generic-tl-wdr4900-v2-squashfs-factory.bin]]+v2: [[https://​downloads.openwrt.org/​barrier_breaker/14.07/ar71xx/generic/​openwrt-ar71xx-generic-tl-wdr4900-v2-squashfs-factory.bin|openwrt-ar71xx-generic-tl-wdr4900-v2-squashfs-factory.bin]]
   * If you do not speak chinese and are not familiar with the standard TP-Link firmware, please see the screen shots below for help.   * If you do not speak chinese and are not familiar with the standard TP-Link firmware, please see the screen shots below for help.
  
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 {{:​media:​toh:​tp-link:​stock-fw-upgrade-step2.jpg?​250|Upgrading from Stock Firwmare - Step 2}} {{:​media:​toh:​tp-link:​stock-fw-upgrade-step2.jpg?​250|Upgrading from Stock Firwmare - Step 2}}
  
 +==== VLAN ====
 +To get tagged and untagged traffic working on the same port a patch for the switch driver is needed. Refer to: https://​dev.openwrt.org/​ticket/​12181#​comment:​73
  
 ===== De-brick or OEM installation ===== ===== De-brick or OEM installation =====
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   * a TFTP server started on your local machine   * a TFTP server started on your local machine
     * must be listening on the same link/IP address as the wired ethernet connection to the router     * must be listening on the same link/IP address as the wired ethernet connection to the router
-    * v1.x models prefer the server address 192.168.1.66, v2.0 prefers 192.168.1.100+    * v1.x models prefer the server address 192.168.0.66, v2.0 prefers 192.168.1.100
  
 === v1.x Flash Write Procedure === === v1.x Flash Write Procedure ===
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 === Pre-requisites === === Pre-requisites ===
  
-  * Copy a working & full OpenWrt sysupgrade image into your TFTP server folder (e.g: http://​downloads.openwrt.org/​snapshots/trunk/​mpc85xx/​openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-sysupgrade.bin) so it will be found under the path /​wdr4900v1_tp_recovery.bin You can also use the image used for reverting to stock firmware if you prefer to do so, but it has to be placed under the same path.+  * Copy a working & full OpenWrt sysupgrade image into your TFTP server folder (e.g: https://​downloads.openwrt.org/​barrier_breaker/14.07/mpc85xx/generic/​openwrt-mpc85xx-generic-tl-wdr4900-v1-squashfs-sysupgrade.bin) so it will be found under the path /​wdr4900v1_tp_recovery.bin You can also use the image used for reverting to stock firmware if you prefer to do so, but it has to be placed under the same path.
   * A TFTP server started on your local machine on LAN address 192.168.0.66/​24.   * A TFTP server started on your local machine on LAN address 192.168.0.66/​24.
   * Connect your LAN-port to one of the routers LAN    * Connect your LAN-port to one of the routers LAN 
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   - Plug in your router and keep the WPS/Reset button pressed until the tftp server confirms the transfer is done   - Plug in your router and keep the WPS/Reset button pressed until the tftp server confirms the transfer is done
   - Wait for the router to reboot, the new image will then be loaded   - Wait for the router to reboot, the new image will then be loaded
 +  - A pack ready for doing this, containing TFTPD32 server and the latest TP-Link firmware, can be found here: https://​forum.openwrt.org/​viewtopic.php?​pid=236428#​p236428 
 +  - Also there'​s a video of the process: http://​www.youtube.com/​watch?​v=54PAS0gvW2k
 ===== Failsafe / reset ===== ===== Failsafe / reset =====
-After all else failed, I found [[http://​www.binaryfriend.ru/​2012/​10/​how-to-hard-reset-openwrt-on-tp-link-1043nd]]. ​ Extremely simple. ​ Please see the original page for more info.  Summary: 
  
-  ​- Power the router up; +On the v1 units, the only way that I have been able to get the router into failsafe mode is to quickly and repeatedly press the WPS/Reset button //starting before the front panel "​star"​ LED started flashing. //When that LED finally lit, it appeared to go directly into the rapid-flashing "​failsafe"​ indication. If the WPS LED lights (rightmost, "​yin-yang arrows"​),​ it may be that you started clicking the button a little early in the boot sequence. 
-  - After powering up track the SYS light when it starts to blink, when it does press and hold the QSS button till SYS lights starts to blink faster – router goes to recovery mode; + 
-  - Telnet to the router on 192.168.1.1 – no password needed (if your computer doesn’t gets IP address from DHCP assign it manually for i.e. 192.168.1.200 with netmask of 255.255.255.0);​ +For what you can do in failsafe, go to the [[doc:​howto:​generic.failsafe|OpenWrt Failsafe Mode]] page. 
-  - In telnet terminal type `mtd -r erase rootfs_data` to reset OpenWRT to it’s defaults.+ 
 + 
 +Another user writes:  
 + 
 +> After all else failed, I found [[http://​www.binaryfriend.ru/​2012/​10/​how-to-hard-reset-openwrt-on-tp-link-1043nd]]. ​ Extremely simple. ​ Please see the original page for more info.  Summary: 
 +
 +>  ​- Power the router up; 
 + - After powering up track the SYS light when it starts to blink, when it does press and hold the QSS button till SYS lights starts to blink faster – router goes to recovery mode; 
 + - Telnet to the router on 192.168.1.1 – no password needed (if your computer doesn’t gets IP address from DHCP assign it manually for i.e. 192.168.1.200 with netmask of 255.255.255.0);​ 
 + - In telnet terminal type `mtd -r erase rootfs_data` to reset OpenWRT to it’s defaults. 
  
 ===== Reverting to stock firmware ===== ===== Reverting to stock firmware =====
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 You can revert to stock firmware by following these steps: You can revert to stock firmware by following these steps:
  
-  * Download / copy with SCP or wget this firmware to the /tmp folder of the router: [[ftp://everbest.ftpserver.biz/Share/TP-Link/TL-WDR4900%20Firmware/​wdr4900nv1_en_3_14_1_up(130304)_beta.bin]]+  * Download / copy with SCP this firmware to the /tmp folder of the router: [[https://www.dropbox.com/sh/g8dyafqrato12pc/AADtSjx_MVot7asdqeRtvVVza?​dl=0]] 
 +  * Optionally check MD5 hash: 1148EFD09C6D9B07E6A01259A4EBEF72 
 +  * Rename to firmware.bin (less chance for spelling errors and unsupported characters)
   * Open a SSH session to the router, cd to /tmp   * Open a SSH session to the router, cd to /tmp
-  * Execute the following command: mtd -r write wdr4900nv1_en_3_14_1_up(130304)_beta.bin firmware+  * Execute the following command: mtd -r firmware.bin firmware
   * Wait until the router reboots   * Wait until the router reboots
  
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 more bytes than this one. more bytes than this one.
 {{tag>​GigabitEthernet internalantenna 2usb 3x3 450mbps usb2.0 5ghz 5port 16flash 802.11abgn ath9k detachableantenna 6ant 3ant 128ram 802.11abgn_simultan 2WNIC, soc.freescale.mpc}} {{tag>​GigabitEthernet internalantenna 2usb 3x3 450mbps usb2.0 5ghz 5port 16flash 802.11abgn ath9k detachableantenna 6ant 3ant 128ram 802.11abgn_simultan 2WNIC, soc.freescale.mpc}}
 +
 +===== Specific Configuration =====
 +==== Switch Ports (for VLANs) ==== WDR4900 v1?
 +
 +Numbers 2-5 are Ethernet Ports 1-4 as labeled on the unit, number 1 is "​Internet"​ (WAN) on the unit, 0 is the internal connection to the router itself.
 +^ Port ^ Switch port ^
 +| CPU   | 0 |
 +| WAN   | 1 |
 +| LAN 1 | 2 |
 +| LAN 2 | 3 |
 +| LAN 3 | 4 |
 +| LAN 4 | 5 |
 +| (not used ?) | 6 |
 +
 +==== Switch Ports (for VLANs) ==== WDR4900 v2
 +
 +Numbers 2-5 are Ethernet Ports 1-4 as labeled on the unit, number 1 is "​Internet"​ (WAN) on the unit, 6 is the internal connection to the router itself, and 0 is another CPU, because this router has two.
 +
 +^ Port ^ Switch port ^
 +| Second CPU | 0 |
 +| WAN   | 1 |
 +| LAN 1 | 2 |
 +| LAN 2 | 3 |          ​
 +| LAN 3 | 4 |
 +| LAN 4 | 5 |
 +| CPU   | 6 |
 +
 +
 +==== Luci WDR4900v2 (Example Vlans tag for Movistar FTTH Spain)
 +
 +
 +
 +{{:​media:​tplink_wdr4900v2_switch_vlan_tagg.jpg?​900}}
 +
 +
 +==== Port Mirroring ====
 +Hardware port mirroring is supported in v1/(v2?) FIXME
 +
 +Here's an example of configuring port mirroring in /​etc/​config/​network for mirroring port 1 to port 5
 +(You may need to restart the router for port mirroring changes to take effect):
 +<​code>​
 +
 +config switch
 + option name '​switch0'​
 + option reset '​1'​
 + option enable_vlan '​1'​
 + option enable_mirror_rx '​1'​
 + option enable_mirror_tx '​1'​
 + option mirror_source_port '​1'​
 + option mirror_monitor_port '​5'​
 +
 +</​code>​
 +
 +===== QEMU test environment =====
 +
 +In case you are interested to run a virtual test environment for your PPC based WDR4900 platform
 +QEMU is a good helper. It cannot run the downloadable kernel image but at least a slightly modfied ​
 +version. Here are the basic steps to get a initial setup up and runnung.
 +
 +Install QEMU for your Linux distribution. It should be at least 2.1.2. The process was only tested ​
 +with that version. Create a [[about:​toolchain|buildroot environment]]. If you do not want to read 
 +every single bit of information over there use these commands. We assume that we only want to
 +build the stable Barrier Breaker version.
 +
 +<​code>​
 +# cd ~
 +# mkdir buildroot
 +# cd buildroot
 +# git clone git://​git.openwrt.org/​14.07/​openwrt.git
 +# cd openwrt
 +# ./​scripts/​feeds update -a
 +# ./​scripts/​feeds install -a
 +</​code>​
 +
 +Select your target platform
 +
 +<​code>​
 +# make menuconfig
 +Target System -> Freescale MPC85xx [*]
 +</​code>​
 +
 +Save changes and leave setup. Create the default configuration for the platform
 +
 +<​code>​
 +# make defconfig
 +</​code>​
 +
 +Activate some essential buildroot configuration options.
 +
 +<​code>​
 +# make menuconfig
 +Target images -> ramdisk [*]
 +Kernel modules -> filesystems -> kmod-fs-ext4 [*]
 +</​code>​
 +
 +Save changes and leave setup. Now head over to kernel configuration and define critical
 +settings that the kernel can run inside QEMU. 
 +
 +<​code>​
 +# make kernel_menuconfig
 +Platform support -> Freescale machine type -> qemu generic platform [*]
 +device drivers -> character devices -> serial drivers -> serial port on open plaform bus [ ]
 +</​code>​
 +
 +If you miss one of the two your VM will not boot or have no accessible console.
 +**Have a look the open firmware serial bus must be disabled!**. Additionally we 
 +should enable drivers to access QEMU disks and network cards
 +
 +<​code>​
 +device drivers -> virtio drivers -> activate all menu items [*]
 +device drivers -> block devices -> Virtio block driver [*]
 +device drivers -> network device support -> virtio network driver [*]
 +</​code>​
 +
 +Create the kernel image with
 +
 +<​code>​
 +make -j 8
 +</​code>​
 +
 +Finally we have a standalone kernel image with an initial root ramdisk included.
 +So we could already start the VM. To get into better shape create a separate folder ​
 +to hold the image and create a QCOW2 disk with a single ext4 filesystem that can 
 +be mounted inside the VM.
 +
 +<​code>​
 +# cd ~
 +# mkdir vm
 +# cd vm
 +# cp ~/​buildroot/​openwrt/​bin/​mpc85xx/​openwrt-mpc85xx-generic-zImage .
 +# qemu-img create -f qcow2 hdd.qcow2 4G
 +# su
 +# modprobe nbd max_part=8
 +# qemu-nbd --connect=/​dev/​nbd0 ./hdd.qcow2
 +# fdisk /dev/nbd0 (... create partition ...)
 +# mkfs.ext4 /dev/nbd0p1
 +# qemu-nbd --disconnect /dev/nbd0
 +# exit
 +</​code>​
 +
 +This is what our VM folder should look like now:
 +
 +<​code>​
 +ls -al ~/vm
 +drwx------. 7 e500 e500      4096 24. Dez 10:02 .
 +drwxr-xr-x. 6 e500 e500      4096 18. Dez 20:31 ..
 +-rw-r--r--. 1 e500 e500 136839168 24. Dez 10:03 hdd.qcow2
 +-rw-r--r--. 1 e500 e500   ​4360017 24. Dez 09:46 openwrt-mpc85xx-generic-zImage
 +</​code>​
 +
 +Now the VM is ready to start.
 +
 +<​code>​
 +qemu-system-ppc -kernel ~/​vm/​openwrt-mpc85xx-generic-zImage \
 +                -nographic -append "​console=ttyS0"​ -m 1024 -M ppce500 \
 +                -drive file=~/​vm/​hdd.qcow2,​if=virtio
 +</​code>​
 +
 +
 +===== Other Information Resources =====
 +
 +[[https://​forum.openwrt.org/​viewtopic.php?​id=42062&​p=22|OpenWRT Forum Thread "​Developing Support for TPLINK WDR4900"​]]
 +
 +[[https://​wikidevi.com/​wiki/​TP-LINK_TL-WDR4900_v1|Hardware Information at wikidevi (v1 International version)]]
 +
 +[[https://​wikidevi.com/​wiki/​TP-LINK_TL-WDR4900_v2|Hardware Information at wikidevi (v2 PRC-only version)]]
toh/tp-link/tl-wdr4900.1393247241.txt.bz2 · Last modified: 2014/02/24 14:07 by tenninjas