TP-Link TL-WDR3600 (N600)

TP-Link TL-WDR3600 ist ein 802.11n Gigabit Ethernet und Funk Dualband Router. Sehr ähnliches Gerät -→TP-Link TL-WDR4300

• 15.05 on 1.5 model: Router könnte hängen... occasional hangs under load nur nach längerem dauerbetrieb von einigen Wochen.
• 14.07 on 1.5 Model: unreliable reboots → Korrigiert in/seit r43777, Korrektur rück-übertragen für 14.07 in/seit r44065.
• 14.07: bezüglich VLAN switch driver bug → Korrigirt in/seit r42653

See TP-Link TL-WDR4300 installation instructions.

Bei einigen Geräte Revisionen verweigert der Switch-Treiber die Konfiguration von “PORTS” mit “TAGGED” oder “UNTAGGED” VLANS. (Es wurde berichtet das auf Revision 1.5 der Switch TAGGED und UNTAGGED VLANS auf dem GLEICHENPORT ermöglicht.)

ES ist möglich verschiedenen VLANS an einem Port zu betreiben sind diese “TAGGED”:

root@OpenWrt:/# swconfig
swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)

root@OpenWrt:/# swconfig dev switch0 help
switch0: eth0(Atheros AR8327), ports: 7 (cpu @ 0), vlans: 128
     --switch
        Attribute 1 (int): enable_vlan (Enable VLAN mode)
        Attribute 2 (none): reset_mibs (Reset all MIB counters)
        Attribute 3 (none): apply (Activate changes in the hardware)
        Attribute 4 (none): reset (Reset the switch)
     --vlan
        Attribute 1 (int): vid (VLAN ID (0-4094))
        Attribute 2 (ports): ports (VLAN port mapping)
     --port
        Attribute 1 (none): reset_mib (Reset single port MIB counters)
        Attribute 2 (string): mib (Get port's MIB counters)
        Attribute 3 (int): pvid (Primary VLAN ID)
        Attribute 4 (string): link (Get port link information)

OpenWRT switch KONFIGURATION Eth0.1 = LAN et Eth0.2 = WAN

root@OpenWrt:/# swconfig dev switch0 vlan 1 show
VLAN 1:
        vid: 1
        ports: 0t 2 3 4 5
root@OpenWrt:/# swconfig dev switch0 vlan 2 show
VLAN 2:
        vid: 2
        ports: 0t 1

Tag von Port/Anschluss/Schnittstelle 5 zu VLANs 1 und 2 erfolgreich:

root@OpenWrt:/# swconfig dev switch0 vlan 1 set ports "0t 2 3 4 5t"
root@OpenWrt:/# swconfig dev switch0 vlan 1 show
VLAN 1:
        vid: 1
        ports: 0t 2 3 4 5t
root@OpenWrt:/# swconfig dev switch0 vlan 2 show
VLAN 2:
        vid: 2
        ports: 0t 1

root@OpenWrt:/# swconfig dev switch0 vlan 2 set ports "0t 1 5t"
root@OpenWrt:/# swconfig dev switch0 vlan 1 show
VLAN 1:
        vid: 1
        ports: 0t 2 3 4 5t
root@OpenWrt:/# swconfig dev switch0 vlan 2 show
VLAN 2:
        vid: 2
        ports: 0t 1 5t

Tag PORT/ANSCHLUSS/SCHNITTSTELLE 4 zu VLAN 1, und untag port 4 zu VLAN 2: Error, port 4 is removed from VLAN 1

root@OpenWrt:/# swconfig dev switch0 vlan 1 set ports "0t 2 3 4t 5t"
root@OpenWrt:/# swconfig dev switch0 vlan 1 show
VLAN 1:
        vid: 1
        ports: 0t 2 3 4t 5t
root@OpenWrt:/# swconfig dev switch0 vlan 2 show
VLAN 2:
        vid: 2
        ports: 0t 1 5t

root@OpenWrt:/# swconfig dev switch0 vlan 2 set ports "0t 1 4 5t"
root@OpenWrt:/# swconfig dev switch0 vlan 1 show
VLAN 1:
        vid: 1
        ports: 0t 2 3 5t
root@OpenWrt:/# swconfig dev switch0 vlan 2 show
VLAN 2:
        vid: 2
        ports: 0t 1 4 5t
root@OpenWrt:/#

config interface 'loopback'
        option ifname 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config switch
        option name 'eth0'
        option reset '1'
        option enable_vlan '1'

## Port: internet
config switch_vlan
        option device 'eth0'
        option vlan '2'
        option ports '0t 1'

## Port LAN1
config switch_vlan
        option device 'eth0'
        option vlan '1'
        option ports '0t 2'

## Port LAN2
config switch_vlan
        option device 'eth0'
        option vlan '3'
        option ports '0t 3'

## Port LAN3
config switch_vlan
        option device 'eth0'
        option vlan '4'
        option ports '0t 4'

## Port LAN4
config switch_vlan
        option device 'eth0'
        option vlan '5'
        option ports '0t 5'

Mindestens seit Revision 1.5 beinhalted der Bootloader einiger Router einen “Wiederherstellungsbootloader” mit TFTP CLIENT. Um diese zu aktivieren drücke und halte den WPS/RESET Knopf wärend des Anschaltens bis die WPS LED zu leuchten beginnt. Verbinde den PC an mit Port/Anschluss/Schnittstelle 1 des Routers. MIt einem PAket Sniffer fällt nun auf, dass sich ein Gerät mit der Adresse 192.168.0.86 meldet, um nach einem Gerät/Server mit der Adrese 192.168.0.66 zu fragen (ARP-Request).

Beispiel für TCPDUMP

# tcpdump -ni eth0 arp
ARP, Request who-has 192.168.0.66 tell 192.168.0.86, length 46

Stellen sie Ihren PC auf die gesuchte SERVER-Adresse ein Bsp.: -→ 192.168.0.66, netmask /24 (255.255.255.0).

# ip addr add dev eth0 192.168.0.66/24

Der Paketsniffer zeigt anschließend: der Router sucht nach einem Image -→ wdr3600v1_tp_recovery.bin

# tcpdump -npi eth0 udp
IP 192.168.0.86.2195 > 192.168.0.66.69:  44 RRQ "wdr3600v1_tp_recovery.bin" octet timeout 5

Bennen sie das zu übertragene Image in das vom TFTP-Client des Routers gesuchte Format um. → generic.flashing.tftp

IFalls sie zurück zu einer Stock/TP-Link eigenen Firmware wollen beachten sie kein boot beinhaltendes Image zu Verwenden → back.to.stock.firmware.!!!!!!

# cp openwrt-ar71xx-generic-tl-wdr3600-v1-squashfs-factory.bin wdr3600v1_tp_recovery.bin
# atftpd --no-fork --daemon .

Nach der Übertragung beginnt das beschreiben des Flash-Speichers umgehend und der Router wird anschließend automatisch neu gestartet. Dauer: ca. 1min

Wegen abweichungen diverser Firmware Versionen, kann es zu einem unterschiedlichen Verhalten kommen lese!:https://mail-archive.com/openwrt-devel%40lists.openwrt.org/msg32888.html. ←- Firmware aus beitrag hat ein Zeitfenster zwischen Boot des Recovery und Reset bei nichtgefundenem Firmware-Image.

→ generic.uninstall

With the TL-WR3600 router, there is a catch: the stock firmware is obtained from the OEM: http://www.tplink.com/en/support/download/?model=TL-WDR3600

• in case the file name of this firmware file does not contain the word “boot” in it, you can simply revert back to original firmware
• in case the file name of this firmware file does contain the word “boot” in it, you need to cut off parts of the image file before flashing it:

An example of an image file with the word “boot” in it is wdr3600v1_en_3_13_34_up_boot(130909).bin.

Cut the first 0x20200 (that is 131,584 = 257*512) Bytes from original firmware:

dd if=orig.bin of=tplink.bin skip=257 bs=512

You should transfer the firmeware image to the /tmp folder and revert back to original firmware (if availlable you can flash the firmware via the webinterface as well):

Via the safer method using sysupgrade:

sysupgrade /tmp/tplink.bin

Or alternatively you can use the mtd method:

mtd -r write /tmp/tplink.bin firmware

OEM TP-Link firmware for the TL-WDR3600 with the boot part removed to revert to the original OEM firmware:

• TL-WDR3600 V1 TL-WDR3600-V1-stripped.zip
• TL-WDR3600 V1 TL-WDR3600_V1_130320.zip

Updated versions of stock firmware have Firmware Recovery Mode. Recommend upgrading latest stock firmware before flashing to OpenWrt for the first time so you can utilise this if necessary.

See also performance.

Scenario:

                                 [samba server in a lan network offering a file of 3Gb]
                                        [one port connection (so max 1Gbit speed)]
                                              [switch 1Gbit ports]
                                          [one port connection (so max 1Gbit speed)]
   [mikrotik rb 750GL with routerOS 6.x as gateway2]   [asus wl500gp v2 openwrt 12.09 as gateway2 limiting the wan/lan traffic to 1428 packets per second]
                  [tplink wdr3600 , owrt 12.09, mwan3 for using 2 gw concurrently]
                               [switch 1Gbit ports]
                      [one port connection (so max 1Gbit speed)]
                            [2 windows vm on a esxi server]

Both windows machines asked the same file to save it locally.

Results: the asus router was 40% idle, with the limit of packets reached ( ~ 15 Mbit/s ); the rb750Gl was completely used, idle less than 1% with a bandwidth of ~175 Mbit/sec and ~ 7.5K packets sent and ~ 17K packets received ; the tplink was 20% idle, with a total of ~ 190 Mbit/s , ~18K packets received and ~8K packets sent.

That is impressive, considering that the mikrotik solution is commercial and was expected to provide way more bandwidth (with way less firewall rules!), instead the openwrt solution is able to overload it even without the so 'blamed' hw accel https://dev.openwrt.org/ticket/11779 . Great job openwrt!

For whatever SOHO solution that has no so big traffic between two logical networks (for example, less than 50 Mbit on average), the wdr3600 plus openwrt and thirdy party software (mwan3) is a great solution even for business.

WDR3600 v1.3 Start Log original U-Boot 1.1.4 (Jan 29 2013 - 16:09:44)

U-Boot 1.1.4 (Jan 29 2013 - 16:09:44)

U-boot DB120


DRAM:  128 MB
id read 0x100000ff
flash size 8MB, sector count = 128
Flash:  8 MB
Using default environment

PCIe Reset OK!!!!!!
In:    serial
Out:   serial
Err:   serial
Net:   ag934x_enet_initialize...
No valid address in Flash. Using fixed address
 wasp  reset mask:c03300 
WASP  ----> S17 PHY *
: cfg1 0x7 cfg2 0x7114
eth0: ba:be:fa:ce:08:41
athrs17_reg_init: complete
eth0 up
eth0
Autobooting in 1 seconds

Very quickly type tpl when the message Autobooting in 1 seconds appears

WDR3600 v1.3 U-boot help :

db12x> help

?       - alias for 'help'
bootm   - boot application image from memory
cp      - memory copy
erase   - erase FLASH memory
help    - print online help
md      - memory display
mm      - memory modify (auto-incrementing)
mtest   - simple RAM test
mw      - memory write (fill)
nm      - memory modify (constant address)
ping	- send ICMP ECHO_REQUEST to network host
printenv- print environment variables
progmac - Set ethernet MAC addresses
reset   - Perform RESET of the CPU
setenv  - set environment variables
tftpboot- boot image via network using TFTP protocol
version - print monitor version

WDR3600 v1.3 U-boot printenv

db12x> printenv

bootargs=console=ttyS0,115200 root=31:02 rootfstype=squashfs init=/sbin/init mtdparts=ath-nor0:256k(u-boot),64k(u-boot-env),6336k(rootfs),1408k(uImage),64k(mib0),64k(ART)
bootcmd=bootm 0x9f020000
bootdelay=1
baudrate=115200
ethaddr=0xba:0xbe:0xfa:0xce:0x08:0x41
ipaddr=192.168.1.111
serverip=192.168.1.100
dir=
lu=tftp 0x80060000 ${dir}u-boot.bin&&erase 0x9f000000 +$filesize;cp.b $fileaddr 0x9f000000 $filesize
lf=tftp 0x80060000 ${dir}db12x${bc}-jffs2&&erase 0x9f050000 +0x630000;cp.b $fileaddr 0x9f050000 $filesize
lk=tftp 0x80060000 ${dir}vmlinux${bc}.lzma.uImage&&erase 0x9f680000 +$filesize;cp.b $fileaddr 0x9f680000 $filesize
stdin=serial
stdout=serial
stderr=serial
ethact=eth0

Environment size: 686/65532 bytes

Restoration of original firmware (without modifying U-Boot). The firmware must be 8,126,464 octets which correspond to a firmware without U-Boot. Today, firmwares TP-Link : wdr3600v1_en_3_13_23_up(120820), wdr3600v1_en_3_13_26_up(130129) and wdr3600v1_en_3_13_31_up(130320) come without U-Boot. The version used in the example is wdr3600v1_en_3_13_31_up(130320) on the WDR3600 v1.3

db12x> setenv ipaddr 192.168.0.144

db12x> setenv serverip 192.168.0.11

db12x> tftp 0x80060000 wdr3600v1_en_3_13_31_up(130320).bin

dup 1 speed 1000
Using eth0 device
TFTP from server 192.168.0.11; our IP address is 192.168.0.144
Filename 'wdr3600v1_en_3_13_31_up(130320).bin'.
Load address: 0x80060000
Loading: *#################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 #################################################################
	 ############################
done
Bytes transferred = 8126464 (7c0000 hex)

ATTENTION Only continue if the last line reads 8126464 (7c0000 hex)

db12x> erase 0x9f020000 +7c0000


First 0x2 last 0x7d sector size 0x10000

Erased 124 sectors
db12x> cp.b 0x80060000 0x9f020000 0x7c0000

Copy to Flash... write addr: 9f020000
done
db12x> reset

The router reboots

U-Boot 1.1.4 (Jan 29 2013 - 16:09:44)

U-boot DB120


DRAM:  128 MB
id read 0x100000ff
flash size 8MB, sector count = 128
Flash:  8 MB
Using default environment

PCIe Reset OK!!!!!!
In:    serial
Out:   serial
Err:   serial
Net:   ag934x_enet_initialize...
No valid address in Flash. Using fixed address
 wasp  reset mask:c03300 
WASP  ----> S17 PHY *
: cfg1 0x7 cfg2 0x7114
eth0: ba:be:fa:ce:08:41
athrs17_reg_init: complete
eth0 up
eth0
Autobooting in 1 seconds
## Booting image at 9f020000 ...
   Uncompressing Kernel Image ... OK

Starting kernel ...

WDR3600 TP-Link Original Firmware Password

TL-WDR3600 login: root
Password: ???
Login incorrect

shadow hash password file : root:$1$GTN.gpri$DlSyKvZKMR9A9Uj9e9wR3/:15502:0:99999:7:::

Login: root Password: sohoadmin

Read about bootloader in general and about Das U-Boot in particular.

Forum member pepe2k made a modification of U-Boot 1.1.4 for Qualcomm Atheros SoCs based devices (the project is still being developed, so new devices and SoCs will be supported in the future). Up to date information, binary images and sources can be found on official GitHub repository.

This modification started from wr703n-uboot-with-web-failsafe project, but supports more devices, all modern web browsers, has a lot of improvements and other modifications (like U-Boot NetConsole, custom commands, overclocking possibilities etc.).

More information:

• Official repository on GitHub: U-Boot 1.1.4 modification for routers
• Discussion about this project on OpenWrt forum
• An article (in Polish) about one of the first version of this project on www.tech-blog.pl

→ port.gpio

Partially based on → tl-wdr4300_v1

Tested with hw version 1.5, BB r41181

rmmod gpio_button_hotplug
echo "16" > /sys/class/gpio/export
echo "17" > /sys/class/gpio/export
echo "in" > /sys/class/gpio/gpio16/direction
echo "in" > /sys/class/gpio/gpio17/direction

cat /sys/class/gpio/gpio16/value
cat /sys/class/gpio/gpio17/value

The task was to make ext-root without using the default ports.

It turns out that the GL850G chipset used by the TP-Link in WDR3600/4300/4900 models can handle up to four ports.

Analysing the router's PCB it appears that pins 8(D-), 9(D+), 11(D-) and 12(D+) are unused. Aditionaly each factory USB port has separate power section.

GND is at the TP7 pin point. +5 V was taken directly from the MOSFET. +5 V can be also taken from TP5 near the power switch. The Maplin part N75HL is perfect for adding these externally and can be mounted under one side once a small hole has been drilled in the case.

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