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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘ASUS RT-N66U’ Category

Some more notes on ASUS RT-N66U, firmwares, temperatures and versions

Posted by jpluimers on 2014/08/20

In the the irregular series of ASUS RT-N66U and TomatoUSB posts:

Execute this script from the Tomato USB interface, or a ssh/telnet shell:

cat /dev/mtd0ro | grep bl_version
nvram get os_version
nvram get clkfreq
wl -i eth1 phy_tempsense | awk '{print $1/2+20;}'
wl -i eth2 phy_tempsense | awk '{print $1/2+20;}'
  • Line 1 gets the CFE bootloader version
    (1.0.2 and lower boot with 32K of NVRAM, 1.0.3 and up with 64K of RAM; some Firmwares work around the 32k limitation)
  • Line 2 gets the Firmware model and version
  • Line 3 gets the CPU speed
  • Line 4 and 5 get the temperature for eth1 (2.4 Ghz) and eth2 (5 Ghz) in Celsius
    It is based on the RMerlinDev (firmware developer) information on temperatures: These are for each radio. Take the returned value, divide by 2, then add 20. Results are in Celcius.
    Next to that knowledge, it uses a few tricks on awk calculation, and first parameter in awk (the second parameter would be the hex value of the temperature code in parenthesis) which is easier than shell calculations.

Based on those, I found a few very useful scripts:

–jeroen

Posted in ASUS RT-N66U, Awk, bash, Development, Internet, Network-and-equipment, Power User, Scripting, Software Development, TomatoUSB | Leave a Comment »

DefCon-21: ASUS RT-AC66U is vulnerable to SMB Symlink and ACSD hacks, I presume the ASUS RT-N66U is too (via SecurityEvaluators.com)

Posted by jpluimers on 2013/08/05

Since the ASUS RT-AC66U and ASUS RT-N66U are so similar, my guess is that the ASUS RT-N66U is vulnerable too.

–jeroen

via: Hacking and Rooting SOHO Home Routers.

Posted in ASUS RT-N66U, Network-and-equipment, Power User | Tagged: , , | Leave a Comment »

Looking for a new Dynamic DNS provider for FritzBox 7340 and ASUS RT N66U

Posted by jpluimers on 2013/08/01

Found out the hard way that DynDNS.org now requires you to perform a web login every 30 days for the free service: Free DNS requires monthly login? – Dyn Community Forum.

Basically I’m looking for a way to either

  1. host my own dynamic DNS compatible service (I already run normal DNS on 2 domains)
  2. use another free dynamic DNS service

The biggest problem: I’m using 2 routers that have a list of supported Dynamic DNS services that only partially overlap: Read the rest of this entry »

Posted in ASUS RT-N66U, Fritz!Box, Network-and-equipment, Power User | Tagged: , , | 1 Comment »

ASUS RT N66U did not update DDNS with changed IP addres

Posted by jpluimers on 2013/06/11

Today my router had an IP-address change, but didn’t update the DynDNS.org information in my My Host Services | My Dyn Account. Which meant I could not “phone home”, as I didn’t know the new IP-address**.

Lesson re-learned:

During initial router configuration, watch the router logs, as you might have accidentally updated the DynDNS.org by hand, not by your router

Had this in the ASUS Wireless Router RT-N66U – General Log:

Jun 11 08:01:53 notify_rc : restart_ddns
Jun 11 08:01:53 ddns: clear ddns cache file for server setting change
Jun 11 08:01:53 ddns update: connected to members.dyndns.org (204.13.248.111) on port 80.
Jun 11 08:01:53 ddns update: server output: HTTP/1.1 200 OK^M Date: Tue, 11 Jun 2013 06:01:53 GMT^M Server: Apache^M X-UpdateCode: X^M Content-Length: 7^M Connection: close^M ^M notfqdn
Jun 11 08:01:53 ddns update: malformed hostname: myhostname

The problem: hostname should not only be the name of the host, but the FQDN of the host. Read the rest of this entry »

Posted in ASUS RT-N66U, Network-and-equipment, openSuSE, Power User, SuSE Linux | Tagged: , , , , | 2 Comments »

ASUS Wireless Router RT-N66U – General Log: full of “protocol 0000 is buggy, dev eth0”

Posted by jpluimers on 2013/06/05

Not sure what happened, but my log appeared to be full of these messages:

Jun  5 12:46:56 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:02 kernel: printk: 61 messages suppressed.
Jun  5 12:47:02 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:06 kernel: printk: 132 messages suppressed.
Jun  5 12:47:06 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:11 kernel: printk: 544 messages suppressed.
Jun  5 12:47:11 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:17 kernel: printk: 163 messages suppressed.
Jun  5 12:47:17 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:21 kernel: printk: 115 messages suppressed.
Jun  5 12:47:21 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:26 kernel: printk: 275 messages suppressed.
Jun  5 12:47:26 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:31 kernel: printk: 644 messages suppressed.
Jun  5 12:47:31 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:36 kernel: printk: 866 messages suppressed.
Jun  5 12:47:36 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:41 kernel: printk: 750 messages suppressed.
Jun  5 12:47:41 kernel: protocol 0000 is buggy, dev eth0
Jun  5 12:47:46 kernel: printk: 665 messages suppressed.
Jun  5 12:47:46 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:51 kernel: printk: 766 messages suppressed.
Jun  5 12:47:51 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:47:56 kernel: printk: 625 messages suppressed.
Jun  5 12:47:56 kernel: protocol 0000 is buggy, dev eth1
Jun  5 12:48:01 kernel: printk: 782 messages suppressed.
Jun  5 12:48:01 kernel: protocol 0000 is buggy, dev eth0

Note sure what caused it, but others have had it in the past as well.
Other symptoms:

  • br0 network becoming slower and slower on download speed (but not on upload speed; in the end I had 0.5 megabit downstream and 5 megabit upstream)
  • br0 ping times twice as high as normal (around 30 milliseconds on SpeedTest.net in stead of 15 milliseconds)
  • WiFi (especially 2.4: eth1) becoming impossible to connect to from new connections
  • packet drops

I thought they were caused because of me experimenting with a Fonera 2100A -> TomadoUSB experiment, especially since my FON access point was limited to 1 megabit.

But as soon as other users started to use the LAN, I got speed complaints about the slowness.

I’ve been running the ASUS RT-N66U in Firmware Version 3.0.0.4.260 with Operation Mode:Wireless router for quite a while now, but I also noticed that it had rebooted itself recently, as the was Uptime 0 days 20 hours when I started digging in the log.

The worst I got:

Ping (milliseconds) Down (megabit) Up (megabit) WiFi connection to
31 0.4 0.9 ASUS RT-N66U: 2.4 Ghz

Time for a Reboot to see if it gets any better.

Later:

After a reboot the situation turned to normal:

Ping (milliseconds) Down (megabit) Up (megabit) WiFi connection to
16 90 10 ASUS RT-N66U: 2.4 Ghz
17 9 8 Fonera: MyPlace
17 3 1 Fonera: FON_AP
15 2 0.6 Wireless-N 3G Router
15 1.5 0.7 RT N66U TomatoUSB 2.4 Ghz

–jeroen

via: ASUS Wireless Router RT-N66U – General Log.

Posted in ASUS RT-N66U, Network-and-equipment, Power User | 2 Comments »

 
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