Moin, new here (MicroTik RB751U-2HnD / Arcadyan VGV7510KW22)

Installing and Using OpenWrt
1

Moin

I'm new here and more than completely inexperienced!

Therefore, I'll take the opportunity to briefly introduce myself and my current/aspired hardware before I ask any probably stupid questions :slight_smile:

While looking for a router (LAN, not DSL/WLAN AP), I stumbled across OpenWRT some time ago, more intensively recently and I was looking for suitable boards/solutions.

Now, while scrolling through the supported HW list, I was able to see that not only the old MikroTik (RB751U-2HnD 1), which according to GLS should arrive here tomorrow from an eBay leftovers auction, but also my O2box 6431 (Arcadyan VGV7510KW22 1) should be fit for OpenWRT.

That sounds great! This means I can save myself unnecessary expensive new purchases.

Yes, I really still use a 6431 for DSL because a) I don't use any 5g devices other than my cell phone (Ubuntu PCs with 20.04LTS/22.04LTS, Banana Pi 20.04LTS, various "smart devices" and especially ESP32/ESP8266 ) and b) the "O2 Homebox 3" that was sent at some point in the meantime only has 2x LAN, so a router is also required in addition to the switch.

Now I've already diligently searched the forum in order to work on the MikroTik as a first step, but I'm already getting squiggles in my eyes with some of them.

I have already set up the TFTP server, hopefully correctly, but I couldn't find any information about which file name the MikroTek expects.

Greetings from the Baltic Sea

Chris

2

this helps

6

This device is supported, it works as a pure VDSL modem (up to 100/40 MBit/s, profile 17b), but it's showing its age - only 100 MBit/s ethernet ports, not quite great 802.11n 2.4-GHz-only (rt2xx0) wireless and a relatively slow SOC and 64 MB RAM isn't that much. The phone features can be made working, using asterisk and chan_lantiq, but setting that up (securely) is a rather steep learning curve. The initial flashing process for OpenWrt isn't trivial and underdocumented, but doable. While it may still be useful as a mere VDSL modem, I wouldn't recommend it for doing much beyond that.

The RB751U-2HnD is even worse, as it doesn't meet minimum system requirements for OpenWrt anymore (32 MB RAM).

I would suggest to search the second hand markets for some easier and more modern hardware, as you are making it hard on yourself with the devices you have (well, the VGV7510KW22 might do as VDSL modem - and yes, you can use it to get your feet wet with OpenWrt, but for production use, it is a bit too limiting).