it seems that I have so much trouble with miktorik routeros and each time the ip has problem or cpu crashes I have to move the site and bring a monitor and keyboard all the way and have a hard time to fix it, however even if I can use serial which I dont have the cable yet I still have to walk quiet long distance to roof top of the some office building.
so I was thinking of getting a UPS with ethernet (which I can’t find yet) and some adapter to connect to the serial port of the machine (AMD Athlon 2000 with ASUS Mb)
is there better idea? today after 8 hours playing around with the MT RouterOS box at 11th floor , the CPU crashed and no reply from wireless or ethernet link, means I have to get appointment to go to rooftop again and unfortunately it is not each to get it with our stupid maintainance.
Please help me. I have not purchased MT yet and only using 24h for time being to see if this is really a good solution, if you know anything better feel free to tell me.
I know about mac-telnet but is it possible to do that within lan from my laptop?
If your CPU is crashing you should replace the hardware. We’ve had 5-6 Mikrotik boxes up for more than 300 days and never once have they crashed, even with 100+mbps running thru them.
You could install a cell phone on the serial port and dial into it from anywhere if you really need that type of connectivity. Family share plans are only a few bux a month to add another phone to it.
this is also very good idea but is it gonna be cheaper if I connect through the serial and for example my box haven’t crashed but there misconfiguration in comminication such as routing or ip add and etc… am I still gonna be able to config anything with no limitation?
is it possible to reboot the machine even if it has crashed? I changed the cpu from amd sempron to athlon (the one I had before I buy) but I am not sure until tomorrow that what happened, if it’s really crashed?
and about the device I posted? is it working with that? and whats the cheapest and reliable handphone that you’are aware of or had tried before?
Thanks alot for that unique idea. however I am not sure if its my first option.
A few years ago we used a lot of multi-port serial Terminal Servers made by Spider. Basically, you telnet to the device and the data is forwarded out the relevant serial port. It also works the other way.
Used them for Serial printing over Ethernet, also, remote access to Unix box console ports.
I don’t think they’re available anymore but someone must make something equivalent.
Yep - MikroTik for example We use it this way, with “special-login” you can also redirect a telnet/SSH session to a serial port
Regarding the device you posted - it will probably work, but you have to install a driver on the laptop/PC from which you want to connect to it. There are several “telnet-serial” converters out there - try Google. If you can’t come up with something I’ll dig my archives…
As far as I remember, Moxa and Cyclades had something like that.
is it possible to reboot the machine even if it has crashed?
I like the idea with mobile phones. You could also probably make a mod for the mobile so that it would reboot the router… for example, having two source phone numbers, you can configure the router’s phone to use silent alert for calls from only one of the phones. later you can use either silent alert signaling, or speaker signaling to trigger the reset button
But normally you would enable watchdog for this. If the watchdog would not work for you, then it is hardware fault, and you should change it.
We use it this way, with “special-login” you can also redirect a telnet/SSH session to a serial port 