Fri Apr 12, 2024 5:36 am
Hello
After quite a rough beginnings, broken webfig, unresponsive modem, finally started to get a hang of this. I'm also totally new to Mikrotik, and my first experience with RouterOS was with ATL LTE18 Kit.
Long story short, turns out that the updated version of RouterOS comes with a pretty decent default config that produces a working state after just entering the SIM PIN code. I've since added several more customizations.
Now, I did my homework good, kept reading the online manuals, hugely dug into the whole LTE mobile technology topic, reading all about how cell towers work, cellmapper.net, bands, etc, etc.
Then the Remote Management wouldn't work, some folks familiar explained it's actually due to CGNAT and the ISP had to be involved, and that there's a low chance the ISP would provide an exception, disabling or forwarding.
The ISP first offered to enable static IP, which I didn't thought of as I didn't knew it was a thing for mobile, I'm also used to static IPs at home, it was all another long story there with the Carrier-Grade NAT and the negotiation back and forth, but it turned out that the way this ISP/Operator has things set up, that it just disables CGNAT completely when Static IP is enabled, so the whole issue was resolved quickly. Also CGNAT isn't well known within the ISP either, nor the fact that it just gets disabled with Static IP.
I came back here to figure out what I can do regarding one major setback, a requirement to send SMS messages to the ISP to confirm continuing the internet session, or rather to say to reset the quota counters.
The operator Telemach in Slovenia has a 30GB limit daily, after which the speed is reduced to minimal 64/64kbps, but the counters will reset after 24 hours or a reconnect of the session automatically.
For the users, turning off and on the antenna ungracefully is probably a bad idea, they would have to call me everytime something could go wrong with the ATL.
And the users having to login to the management and fiddle with the administration to send SMS via WinBox or SSH is also ... last resort I guess.
What I had in mind, now that I'm getting familiar with the SMS, is the ability to trigger SMS send to the ISP from the ATL, by sending a SMS to the ATL from my phone with the run script feature that requires the "Secret", I think that would make for a much more simpler script, it's not full auto ofcourse, but that would be pretty easy to do for the users if I give them the instructions to send a SMS from their phone.
Auto daily reset is not a guarantee apparently the ISP said, and with all the testing and daily driving I was getting over the limit 3 times in these couple of weeks without knowing.
There's probably a way in RouterOS to set some kind of a warning when SMS is received, right? I bet there's a logging rule I could have set up.
Later, when I learn more, a possibility of a script to trigger a SMS send to one of my phones, after any kind of SMS is received to the modem from a particular number such as the ISP.
Also, it's good that SMS from the ISP is still received even tho "Receive" isn't setup with the default configuration and I can see no SMS of my test sends from my phone.
In the meantime I need to finish the initial setup so the antenna can get installed, 30GB limit probably won't be an issue for basic operations, but there is a plan for TV and Security System stuff and that's going to all add up, no doubt it'll be an issue.
I'll report back later, maybe I'll manage to figure out a script myself, but this is the last thing I'll tackle.
PS: The SMS Inbox timestamps isn't verbose enough, so it displays messages that were sent later as if they arrived earlier. The ISP sends long messages about the quotas, which are split in 2 or 3, and they all have the same exact timestamps. Possibly the timestamps aren't any more precise in the whole cell network and SMS tech/standard, in which case nothing Mikrotik can do?