The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Network-and-equipment’ Category

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Glasvezel / Fiber internet notes

Posted by jpluimers on 2013/12/09

Some links:

–jeroen

Posted in Internet, LifeHacker, Power User, routers | 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!, Fritz!Box, Network-and-equipment, Power User | Tagged: , , | 1 Comment »

Setting up a PPTP connection on Mac OS X Lion

Posted by jpluimers on 2013/07/05

Easy, but worth viewing the screenshots: IPredator – Setting up a PPTP connection on Mac OS X Lion.

Although: I should follow Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

–jeroen

Posted in Apple, IPSec, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, Network-and-equipment, OS X 10.8 Mountain Lion, Power User, PPTP, VPN | Leave a Comment »

Don’t use PPTP, and don’t use IPSEC-PSK either (via: CloudCracker blog)

Posted by jpluimers on 2013/06/24

A while ago, I had to connect to secure data over PPTP.

It reminded me of  this post from about a year ago: via Divide and Conquer: Cracking MS-CHAPv2 with a 100% success rate (now archived at the wayback machine).

Their main point:

MS-CHAPv2 can be cracked within less than a day (and that time will only get less).

Their short conclusion “basically PPTP is dead, and IPSEC-PSK is worse” leads to the recommendation:

This leaves either an OpenVPN configuration, or IPSEC in certificate rather than PSK mode.

Longer quote: Read the rest of this entry »

Posted in IPSec, Network-and-equipment, Power User, PPTP, Security, VPN | 3 Comments »

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 »

More ESXi5 installation steps

Posted by jpluimers on 2013/06/10

(note: part of this post is unfinished, but I wanted to make sure all the links are publicly accessible, so I posted earlier and incomplete)

I already did a few ESXi5 postings (they apply to 5.1 as well) of which the most important are:

Time to finish up some additional installation steps (with a big thanks to Matthijs ter Woord):

Read the rest of this entry »

Posted in BIOS, Boot, ESXi5, ESXi5.1, Hardware, HP XW6600, Keyboards and Keyboard Shortcuts, Power User, PowerCLI, Virtualization, VMware, VMware ESXi, Wake-on-LAN (WoL), Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

Fonera FON2100A: Why is the MAC address online different than the one found on my router? (via: Fon Support)

Posted by jpluimers on 2013/06/07

From the FON tech support pages:

Why is the MAC address online different than the one found on my router?

Philippe

posted this on March 08, 2011 09:29

If you look at your router information in your user area at fon.com, you will notice that the MAC ID is different than the one found at the bottom of the Fonera.

This is nothing to be worried about. Both MAC IDs are associated with the same Fonera. The MAC ID in the user area is associated with the FON_ signal.

The MAC ID found at the bottom of the Fonera refers to the LAN port.

Specifically for the FON2100A, there are 2 MAC addresses based on the sticker on the bottom of your FON:

  • MAC address on the sticker = MAC for WAN,
    for instance 00:18:84:XX:YY:f6
  • MAC address for FON_FREE_INTERNET WiFi = sticker+1,
    for instance  00:18:84:XX:YY:f7
  • MAC address for MyPlace WiFi = sticker+2,
    for instance  00:18:84:XX:YY:f8

001884 is the OUI for Fon Technology S.L.

You can find that for instance at MAC Address / WWN / Vendor Lookup – WintelGuy.com –.

–jeroen

via: Why is the MAC address online different than the one found on my router? : Fon Support.

Posted in Network-and-equipment, Power User | Leave a Comment »

Fonera Simpl Get Started : Fon Support (FON2100A)

Posted by jpluimers on 2013/06/05

So I won’t forget where the FON2100A instructions are: Fonera Simpl Get Started : Fon Support.

Posted in Fonera FON2100A, Network-and-equipment, Power User | Leave a Comment »

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, Hardware, Internet, Network-and-equipment, Power User, SpeedTest | 2 Comments »

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