MikroTik

r00t

Sysadmins that know Mikrotik well also know not to update anything for a few days after release or to do updates on non-critical test HW first. It's always nice to see a new release, but then I always have to check the forum to see how broken it actually is... that's the reality. But Mikrotik is als...

r00t

"Stable" ? More like "Totally untested". Glad I checked the thread before updating RB4011, I would have lost remote access by doing that. This really raises the questions... do Mikrotik actually test the release version in their lab before releasing it? If it was some exotic bug that happens when ru...

r00t

NTP server seems to be listening on all interfaces. Have to use firewall to limit access...

r00t

In most cases where Mikrotik HW failed, it have always been due to damage from thunderstorm or similar disastrous event. In remaining cases it was all due to bad capacitors on board that bulged and had to be replaced. This happens mostly on RB4xx series. After replacing them the board continues to w...

r00t

Can't be easier: create bridge and add both ports to it. Just make sure you update other settings so it uses bridge interface instead of ETH2.

r00t

Mikrotik started enforcing compliance and power levels for selected country. If you don't care about these limits, you have following options: 1) set country to no_country_set and then you are free to do anything you want with power and channels. But note that some clients will be unable to connect ...

r00t

yes, you can disable the chains in wireless configuration. Also you can choose different combination for receiving and transmitting. Not 100% sure about connector numbering, but you can easily test that: select only one chain and then run Snooper on the interface - it only listens, not transmits, so...

r00t

12V is perfectly fine, even with some loss on the cables. Groove internally converts the voltage to 3.3V and lower, so it really doesn't need high voltage on POE input. But you have to make sure it's solid and doesn't drop when more current is drawn when transmitting etc. Datasheet for Groove says 1...

r00t

Nothing changed

r00t

Here are the UART pins on the PCB (2x2 in the middle): .jpg They are labelled, so you know where to connect what: You need GND, RX, TX. Board RX ===> USB2TTL TXD Board TX ===> USB2TTL RXD Board GND ===> USB2TTL GND And you want to use USB 2 TTL adapter like this: a.jpg It should have a jumper to sel...

r00t

I suppose you can't RMA them (it's too late), so it's time to open them and look inside: Inspect all electrolytic capacitors on board, closely (with magnifier). Any signs of bulging, leaking or discoloration of PCB around them means they have to be replaced. You can also try hooking up TTL UART to g...

r00t

Each container will work as it's own faraday cage, blocking all (or most of the) outside signals - which is ideal. Also for such short range, make sure you don't over-do it with tx power (you want to just fill the container, but not to be heard far outside). Frequencies can then be reused easily. Fo...

r00t

Sadly there is UART on the board (you could solder the connection) but it's not enabled in ROS and thus not usable by user.
So only way is to use usb to serial converter and after it appears in Ports, enable Console on it.

r00t

There is no such command to magically free memory. If it's being used, it's probably needed for what router is doing. Memory might be used by some interfaces or functions (conntrack), so it's possible that disabling interfaces or some functions may free some memory, but that will also break what is ...

r00t

16Mb Flash is maximum for QCA9531 Qualcomm CPU.

This really sucks.
Maybe look at the possibility of having microSD slot or moving ROS system partition to USB stick (and having USB port on the device itself in a first place...)?

r00t

yes, you never know what you are going to get. Same case might contain various types of PCB or even same design with various "compatible" chips. I have seen some online reviews of USB LAN adapters and some were REALLY bad (worked, but linked only at 10Mbit/s and actual speed was a few kilobits/sec):...

r00t

I have two adapters that do work (note: tested on x86 ROS, drivers on other platforms may vary): usb2eth.png The moschip one is Hama 00049244-V2 Hama USB-2.0, I bought years ago in a store and it wasn't cheap (30 euro?). You can still find it but it's expensive: hama.jpg Second one is very cheap usb...

r00t

Nice. Now bring two GigE LAN ports to all 60GHz gear. WAP ltAC shows how it can be done.

r00t

Firmware version is not same as ROS version. There are no known vulnerabilities in firmware. Also you don't have to update it if everything is running fine, it's normal to run firmware with version different to ROS system version.

r00t

Also running tunnels over TCP is bad for performance and latency. Try IPSEC and results should be much better... hardware crypto offload will work and there will be no TCP to cause issues.

r00t

It might be fun exercise to netboot metarouter from network, loading only small PXE client locally...

r00t

beta of ROS might be released by end of the year... but no one knows what boards or hardware it will support (could even be CHRlike test with no wireless), so answer is "some time in the future", no official ETA was ever given

r00t

Many recent drivers aren't included in x86 ROS, it haven't been updated for a long time and I don't expect this to change. Buying hardware that is supported is like playing Russian roulette, there isn't even official list of supported hardware. There is small hope that ROS 7.x will use more modern k...

r00t

Use netinstall to recover it. That should help unless it's some hardware damage (failed nand chip etc.)

r00t

Limited support was in ROS v5 (or was it v4?), but that was removed. And I don't expect it to ever return. There's so many usb wifi devices and Mikrotik insists on writing their own drivers. I would rather see them focus and spend all their time on hardware they are selling (RB4011 5G WIFI fix when?...

r00t

interesting idea... few points: 1) when looking for rotator, you have to deal with wind loading as well, so unless it's quite small dish, usual PTZ mounts will not do (they might work for <0.5m dish, but not more) 2) heavy-duty az/el rotators are quite expensive (google "SPID rotator" and you will s...

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Often for VMs, disk serial numbers aren't really unique, so if you are lucky, newly created one will be same as the old one. You can try imaging complete old disk (some part of license is stored somewhere on disk as well, it must match the disk) and then restoring it into exactly same new one (boot ...

r00t

State of OpenVPN in ROS 6.x is pretty much WONTFIX and other long OpenVPN UDP thread got locked up.
For any new features we have to wait for ROS 7.x (who knows how long) or just buy other hardware that does what you need today...

r00t

60ft tower will be picking up static electricity from all around, especially if there are no other tall buildings around. Basic steps are making sure radio is grounded, use shielded cables (STP) and antennas that are electrically shorted. If you search "grounding" here on forum, you will find some o...

r00t

For routerboards, it's only used when updating BIOS and only on some models that do have HW RS232 port. Many recent boards do have UART pins on PCB, but no BIOS and doesn't even spawn console on it, so it's completely useless... And you are correct, AFAIK you can't upload files to ROS (like update p...

r00t

New drivers haven't been added to x86 ROS for ages. Yes, there's a lot of hardware that simply doesn't work.
I don't expect this to change in any way for ROS 6.x, only hope is that 7.x will have better drivers, but who knows when that will be released...

r00t

Set up serial tcp server in Mikrotik, then you can use any terminal that can do XMODEM and other transfers, like terraterm, to connect and do the job... It's even possible to create virtual COM port on windows PC that forwards all traffic to/from the Mikrotik box, very handy if you have to use some ...

r00t

You'd be in much better position with an (overkill) RB4011 WiFi and RouterOS 6.45, which enables all four chains correctly.

RB4011 have it's own set of quirks and issues, 5GHz WIFI is very much broken as you can see here: RB4011: wlan1 disabling itself

r00t

Is fq_codel implemented in MikroTik RouterOS? no, it's not And answer to all problems and current issues is still exactly the same, like it was in the year 2015: thanks for the suggestion, we are looking into it for v7. currently you can use SFQ, which is also very good Four years later and we are ...

r00t

RB4011 is best matching device for your requirements, at least on the paper. However as written above, make sure you check all the specifications as there are some small details that may break your config completely, like the switch chip capabilities. Also state of 5GHz WIFI on RB4011 is still bugge...

r00t

monitor command can only hex-dump eeprom addresses 0000 - 00ff

r00t

Native CHR would be great and all they need to do is to build CHR with full Linux kernel with all modules that are available. Yes, it will make it much bigger, but we aren't talking embedded here. It's perfectly fine to have big fat kernel or thousands of modules. This would enable support for all m...

r00t

if i'll change the original 2.4ghz minipcie adapter with, let's say, an intel 7260... will ROS recognize it? No, Intel wlan chipsets are unsupported in ROS. Only Atheros may work. Re same MACs: While this is probably another bug in RB4011, it's not the culprit for 5GHz WLAN troubles, because they h...

r00t

This should have been fixed long time ago. Bug like this just kills entire product. Meanwhile MK is still selling RB4011 WIFI version that's clearly flawed and part of it (5GHz WLAN) is completely unusable. It's easy to just say "if you don't like it, just RMA it and you get your money back"... yeah...

r00t

If it's really the antenna gain setting, then manually lowering tx power would fix it as well. Antenna gain just limits maximum power to obey regulatory domain.

r00t

Yes, this is the problem with TZSP and UDP. Often some packets get lost, meaning IDS can't inspect all of them. Also wireshark doesn't like it and some filters apply to the UDP TZSP stream instead of sniffed packets. It would be better to have an option to do port mirroring for bridges in ROS, where...

r00t

I think your only hope is to read it out from other device. Mikrotik BIOSes can be downloaded as .fwf files and they are also stored in flash as such, but what you probably need is the "bios loader" code that loads these. Flash/NAND can be fully dumped from LEDE/OpenWRT and that can be booted of net...

r00t

Just short these two pads sticking out from the damaged button base, it should work. Make sure you don't touch anything around.

r00t

All Mikrotik 60G hardware is so far compatible, so you can mix LHGs and WAPs as you like. But don't expect it to work with other vendors, even if it uses common 802.11ad platform. Everyone is playing on it's own playground, there is no intercompatibility due to customized protocols and different ven...

r00t

Can't guarantee this to work, but it should as SIM card usually uses very low rate (kilobits/s) to communicate: add extension between the socket and SIM card, just wire them together over 50m of STP cable. Get two SIM card extension cables from China, then solder cable between them to make them long...

r00t

I really hope they use v4 kernel, but MIkrotik is still selling devices with 16MB of flash (WHYYYYYYY you do this?!!!!)... so it's not looking good.

r00t

If you only do the bridging, no CPU will be a bottleneck. Both groove and rb433 can do more than 50mbit/s in a bridge setup like this.

r00t

According to the https://wiki.mikrotik.com/wiki/Manual:Maximum_Transmission_Unit_on_RouterBoards ethernet can handle jumbo frames, but wireless can't. So you can't just bridge them, that will not work. You have to create PPPoE server on one side and client on the other, configured to pass the jumbo ...

r00t

Nice to see at least some reply regarding v7. Just want to say when it's ready enough to release some alpha version, please do so. Even if it's missing some features or doesn't work on some hardware, it would still be great to get some real world testing results. I can imagine wireless and various e...

r00t

Best VPN is one you make yourself, host CHR somewhere and use native Mikrotik protocols (EoIP,IPIP,etc.) Generally avoid TCP based protocols (SSTP,OpenVPN) for performance reasons (single TCP connection), always prefer UDP ones (PPTP,L2TP,...). Obviously it all depends on what you are trying to do, ...

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