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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Netgate SG-3100 is an ARM based pfSense Firewall Appliance

Posted by jpluimers on 2019/11/04

By now I should have had plenty of time to try out an ARM based pfSense multi-WAN router like the [WayBack]  Netgate SG-3100 is an ARM based pfSense Firewall Appliance.

So this is a reminder for myself to write down more detailed experiences than the summary at [WayBack]Netgate SG-3100 pfSense Security Gateway Appliance.

It is in the Mikrotik price range, but each time I use those I bump into mysterious RouterOS issues that only I seem to have.

–jeroen

via:

Read the rest of this entry »

Posted in Internet, Network-and-equipment, Power User, routers | 1 Comment »

ZeroShell Firewall/Router Linux Distribution Works on x86 Hardware, Raspberry Pi 2/3, & (Some) Orange Pi Boards

Posted by jpluimers on 2019/11/01

From a while back: [WayBack] ZeroShell Firewall/Router Linux Distribution Works on x86 Hardware, Raspberry Pi 2/3, & (Some) Orange Pi Boards.

I’m anxious to see how much it has grown up by now.

More info at Zeroshell – Wikipedia

–jeroen

via: [WayBack] ZeroShell is a ##Linux distribution for firewalls/routers fully configurable via a web interface, and that not only works on x86, but also on some ##Arm… – Jean-Luc Aufranc – Google+

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

Route traffic from one port via VPN – MikroTik

Posted by jpluimers on 2019/09/16

For my link archive: [WayBack] Route traffic from one port via VPN – MikroTik

Via [WayBack] networking – Mikrotik route internet traffic from one interface via vpn – Super User

–jeroen

Posted in Internet, MikroTik, Power User, routers | Leave a Comment »

Dean Bubley’s Disruptive Wireless: Debunking the Network QoS myth

Posted by jpluimers on 2019/08/09

QoS doesn’t work, except for one specific scenario:

Where QoS works is where one organisation controls both ends of a connection AND also tightly-defines and controls the applications:

  • A fixed-broadband provider can protect IP telephony & IPTV on home broadband between central office & the home gateway.An enterprise can build a private network & prioritise its most important application(s), plus maybe a connection to a public cloud or UCaaS service.
  • Mobile operators can tune a 4G network to prioritise VoLTE.
  • Telco core and transport networks can apply differential QoS to particular wholesale customers, or to their own various retail requirements (eg enterprise users’ data vs. low-end consumers, or cell-site timing signals and backhaul vs. user data).
  • Industrial process & control systems use a variety of special realtime connection protocols and networks. Vendors of “OT” (operational technology) tend to view IT/telecoms and TCP/IP as quaint. The IT/OT boundary is the real “edge”.

Source: [WayBack] Dean Bubley’s Disruptive Wireless: Debunking the Network QoS myth

Via: [WayBack] This is not news, but it’s worthwhile repeating… – Kristian Köhntopp – Google+:

This is not news, but it’s worthwhile repeating: it is actually cheaper to build a network that can carry the traffic than building a network that keeps quality promises on a backbone that is undersized or close to capacity. Overprovisioning works, everything else does not, economically as well as technically.

–jeroen

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

IKEA TRÃ…DFRI lamps [1] when equipped with Firmware >= 1.2.217 integrate with Philips Hue and vice versa…

Posted by jpluimers on 2019/08/05

Reminder to self [WayBack] Just a small FTR. Yes, the IKEA TRÃ…DFRI lamps [1] when equipped with Firmware >= 1.2.217 intergrate seamlessly into the Philips Hue system, thanks to t… – Jan Wildeboer – Google+:

  • IKEA lamps integrate with Philips Hue
  • Philips Hue lamps integrate with the
  • IKEA lamps pair to the remote that you paired with the gateway before: no need to bring the lamp close to the gateway first
  • Philips tries the same
  • Remotes have a 10-decide limit

Links:

--jeroen

Posted in IKEA hacks, IoT Internet of Things, LifeHacker, Network-and-equipment, Power User | Leave a Comment »

RP-SMA dummy loads for nonadjustable WiFi devices and Adjust Fritz!Box WiFi power – via Knowledge Base | AVM International

Posted by jpluimers on 2019/07/19

Via [WayBack] Knowledge Base | AVM International:

3 Setting the maximum transmitter power

  1. Click “Wireless” (“WLAN”) in the FRITZ!Box user interface.
  2. Click “Radio Channel” in the “Wireless” (“WLAN”) menu.
  3. If the option “Set radio channel settings automatically (recommended)” is enabled, proceed with the following section.
    • If the option “Adjust radio channel settings” is enabled:
      1. Click “Additional settings”.
      2. Select “100%” from the drop-down list “Maximum transmitter power”.
      3. Click “Apply” to save the settings.
For me, having minimal power was important since every now I needed to be able to connect to it, but only when I was in close proximity.

Hence the settings below: 6% Maximum transmit power is the lowest I could set.

For devices that cannot adjust their antenna output power which have RP-SMA connectors, I bought these to effectively throttle them:

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Posted in Fritz!, Fritz!Box, Internet, Power User | Leave a Comment »

Sonoff Wireless Switch Family Gets a $3 IP66 Waterproof Enclosure

Posted by jpluimers on 2019/07/15

Interesting stuff from a while back that I will be using soon: [WayBack] Sonoff Wireless Switch Family Gets a $3 IP66 Waterproof Enclosure.

Pictures via CNX Software; originally found via [WayBack] $2.90 waterproof case for +ITEAD Studio Sonoff switches… – Jean-Luc Aufranc – Google+

–jeroen

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Posted in Development, ESP8266, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User | Leave a Comment »

`ll header` in `martian source` is the Data Link Layer: 2 MAC addresses

Posted by jpluimers on 2019/06/03

The ll header field in a martian source message on linux is about the [WayBack] Ethernet frame – Wikipedia: Data Link Layer.

The first 6 hex digits are the source MAC address, the next are the destination MAC address:

May 10 08:59:24 linux kernel: IPv4: martian source 255.255.255.255 from 192.168.17.44, on dev eth1
May 10 08:59:24 linux kernel: ll header: 00000000: ff ff ff ff ff ff 00 0c 29 f7 0f fe 08 00 ........).....

In the above example:

  • Destination = MAC ff ff ff ff ff ff (broadcast, which corresponds with IPv4 target 255.255.255.255)
  • Source = MAC 00 0c 29 f7 0f fe (specific, which I could verify after checking out the machine having IPv4 192.168.17.44)
  • EtherType  08 00 (IPv4)

Some sources indicate it is a martian, as 255.255.255.255 is never a valid IP address, but [WayBack] Martian packet – Wikipedia: IPv4 disagrees.

References:

–jeroen

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

Research list: machine sometimes not visible on LAN

Posted by jpluimers on 2019/04/08

When one of the machine isn’t active for a while it seems to disappear. Even when it’s active some of the machines have intermittent errors pinging it as like every 10-30 seconds one of these ping results appear:

92 bytes from tl-er5120 (192.168.71.1): Redirect Host(New addr: 192.168.71.193)
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 0054 05de   0 0000  40  01 644d 192.168.71.108  192.168.71.193

Sometimes even a simple

Request timeout for icmp_seq 6900

So I need to dig into  ICMP “Redirect Host” .

It might be a simple ARP thing like mac mini – Why the different results for ping? Or why is the Time Capsule getting involved? – Ask Different [WayBack] but like usual stuff I bump into is of a more complex kind so I’ve archived at least these:

–jeroen

Posted in Internet, MikroTik, Power User, routers | Leave a Comment »

Repurposing Old Smartphones for Home Automation | Linux.com | The source for Linux information

Posted by jpluimers on 2019/03/13

Interesting read and watch:

At the recent Embedded Linux Conference and OpenIoT Summit, Mozilla Technical Evangelist Dietrich Ayala proposed a simple and affordable solution to home automation: A discarded smartphone can handle some of the most useful home automation tasks without requiring expensive hubs and sensors — or risking data security in the cloud.

Source: [WayBack] Repurposing Old Smartphones for Home Automation | Linux.com | The source for Linux information.

Via Ruurd Pels.

GitHub Repository  autonome/context by autonome (Dietrich Ayala)

–jeroen

Posted in Development, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User, Software Development | Leave a Comment »

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