New Asus RT-N13U Router

[lly]

This is the new router RT-N13U from ASUS, as I can understand, successor of Wl520g series.

Here the additional specs:

CPU: Ralink RT3052F 384Mhz (MIPS 24K)
RAM: 32Mb (2 x 16Mb)
ROM: 4Mb
USB: 1
WLAN: Dual Radio N
OS: Linux version 2.6.21

Bootloader is U-boot, serial console (see pinout on second picture) has 57600 baudrate.

Internal photos:

[wpte]

looks like a nice mid-range router with lots of options

too bad there is a modem inside... I already have one

[theMIROn]

I've increased the speed of pptp connection up to 2,5 times theoretically.
Firmware with accelerated pptp is based on the latest stable 1.0.1.2 gpl sources from asus site, and we need volunteers to test it at high traffic load.

FW should be flashed via web-interface, as usual, neither reconfiguration not options changes are required after switching from original 1.0.1.2 FW.
If something goes wrong, you can fallback on the last official from asus with flashing back it via web-interface.
http://wl500g.googlecode.com/files/RT-N13U_1.0.1.2.trx

[theMIROn]

too bad there is a modem inside... I already have one

There's no any modem inside, it's ethernet router

[gouryella]

What about USB speed (samba, ftp, www)? Is it better then wl-500 series?
In my country is avaible to buy for 70€ (105$).

[theMIROn]

will check tomorrow, should be much more better than with wl500g

[theMIROn]

cpuinfo

# cat /proc/cpuinfo
system type             : Ralink SoC
processor               : 0
cpu model               : MIPS 24K V4.12
BogoMIPS                : 255.48
wait instruction        : yes
microsecond timers      : yes
tlb_entries             : 32
extra interrupt vector  : yes
hardware watchpoint     : yes
ASEs implemented        : mips16 dsp
VCED exceptions         : not available
VCEI exceptions         : not available

meminfo

# free
              total         used         free       shared      buffers
  Mem:        28884        19012         9872            0            0
 Swap:        65528         2060        63468
Total:        94412        21072        73340

process info

# ps
  PID USER       VSZ STAT COMMAND
    1 admin     2568 S    /init
    2 admin        0 RWN  [ksoftirqd/0]
    3 admin        0 SW<  [events/0]
    4 admin        0 SW<  [khelper]
    5 admin        0 SW<  [kthread]
   30 admin        0 SW<  [kblockd/0]
   33 admin        0 SW<  [khubd]
   45 admin        0 SW<  [kswapd0]
   46 admin        0 SW   [pdflush]
   47 admin        0 SW   [pdflush]
   48 admin        0 SW<  [aio/0]
  182 admin        0 SW   [mtdblockd]
  240 admin        0 SW<  [dwc_otg]
  253 admin        0 SW<  [scsi_eh_0]
  254 admin        0 SW<  [usb-storage]
  264 admin        0 SW   [RtmpWscTask]
  286 admin     2260 S    /usr/sbin/pppd file /tmp/ppp/options.wan0
  311 admin     3088 S    httpd eth2.2
  342 admin     2508 S    usdsvr_broadcast
  343 admin     2508 S    usdsvr_unicast
  355 admin     1196 S    lld2d br0
  356 admin     1452 S    /usr/sbin/wanduck
  384 admin     1772 S    networkmap
  385 admin     1760 S    /bin/sh
  482 admin     1088 S    dproxy -c /tmp/dproxy.conf
  484 admin     2540 S    ntp
  490 admin     2540 S    ots
  492 admin     1552 S    lpd
  506 admin     2624 S    upnpd -f ppp0 br0
  507 admin     2540 S    watchdog
  508 admin     2624 S    upnpd -f ppp0 br0
  509 admin     2624 S    upnpd -f ppp0 br0
  511 admin     2624 S    upnpd -f ppp0 br0
  512 admin     1764 S    /usr/sbin/infosvr br0
  513 admin     1752 S    /sbin/syslogd -m 0 -t RFT-5RFTDST -O /tmp/syslog.log
  515 admin     1752 S    /sbin/klogd
  517 admin     2624 S    upnpd -f ppp0 br0
  518 admin     2624 S    upnpd -f ppp0 br0
  520 admin     2624 S    upnpd -f ppp0 br0
  521 admin     2624 S    upnpd -f ppp0 br0
  523 admin     2540 S    ntp
  527 admin     2624 S    upnpd -f ppp0 br0
  528 admin     2624 S    upnpd -f ppp0 br0
  532 admin     1868 S    vsftpd
  550 admin     1756 S    telnetd

interrupts usage

# cat /proc/interrupts
           CPU0
  3:      83161       Surfboard  eth2
  4:      22912       Surfboard  ra0
  5:     287019       Surfboard  timer
  6:          0       Surfboard  ralink_gpio
 12:        826       Surfboard  serial
 17:          1       Surfboard  Ralink_ESW
 18:    9390429       Surfboard  dwc_otg, dwc_otg_hcd:usb1

usbflash read speed

# hdparm -tT /dev/sda

/dev/sda:
Timing buffer-cache reads:    82 MB in 0.51 seconds = 162777 kB/s
Timing buffered disk reads:   23 MB in 3.10 seconds = 7587 kB/s

usbflash read speed via ftp

colinux:~# LC_ALL=C wget -v ftp://192.168.1.1/AiDisk_a1/test/test.100mb
Length: 104857600 (100M)
100%[==========>] 104,857,600 4.01M/s   in 25s
2009-10-19 02:54:09 (3.97 MB/s) - `test.100mb' saved [104857600]

colinux:~# LC_ALL=C wget -v ftp://192.168.1.1/AiDisk_a1/test/test.200mb
Length: 209715200 (200M)
100%[==========>] 209,715,200 4.48M/s   in 49s
2009-10-19 02:55:56 (4.10 MB/s) - `test.200mb' saved [209715200]

[Mike_77]

Hey everyone,

I know this isn't the right forum, but I can't find one with nearly as much knowledge as this, for what I'm trying to do. I have an Asus RT-N13U which I am trying to enable USB modem support for, and can't figure out how to compile custom firmware. Rev B supports this feature, but has 8MB of flash vice 4MB, so the firmware can't be flashed. The chipsets are identical, so I believe I could just import the necessary files to the Rev A firmware and use it, but I don't know how to do that, and was hoping some of you with more familiarity with Linux and firmware compiling can help me out. Thanks in advance.

[Wahroonga Farm]

Hi all,

New here.

I am seeking to modify the n13u to accept an external antenna.

Couple of questions:

1. How to open the n13u case?

2. Is there a u.fl connector on board (see circled area)?

3. Perhaps a simple mini coax to board solder job in the area identified in the pic below?

Any ideas suggestions great fully accepted.

Note: The task is to install a solar powered remote 3g receiver <-> wifi transponder (n13u) in a location where 3g reception is available; with a 1km wifi link back to the home.

[Antosha]

Please tell me the name of chip U504?
Given device with a burned item.

[Wahroonga Farm]

Hi all,

Couple of questions:

1. How to open the n13u case?

2. Is there a u.fl connector on board (see circled area)?

3. Perhaps a simple mini coax to board solder job in the area identified in the pic below?

1. It's tricky. The key to opening is at the top of the case where you need a thin probe to release the plastic internal catches. Remove the label at the base to reveal a few case screws.

2. No this is a test point only

3. I did not go a head with a mod, but cutting tracks near the antenna would provide a solution.

Cheers