MikroTik

Is this a mikrotik thing, all my websites were working fine for several months and all of a sudden cloudflare can not reach them anymore and i am troubleshooting things i noticed some NAT work and others do not

this is not first time i notice strange things in network since i switched from juniper to mikrotik
like always weird networking stuffs where i can ping one NAT ip and i cant ping the other
It is just weird and i do not know how to troubleshoot these very weird NAT issues, because am not a network engineer as profession

Curl works when using the private IP but when i use the NAT IP then nothing works
but this was working fine for several months and i never touched anything
what can cause this kind of weirdness???

It is caused by the admin. The router is not alive and does not make decisions.
Look in a mirror.

Please post your full config /export (minus serial number and any public WANIP type information )

Also consider updating the software on various other devices,
and other administrators who manage the other routers involved in the operation of the Internet...

I am the only person managing the router..this is a home setup not a company
i am not talking about config for now, just ranting about why these types of weird things happen with mikrotik

It is caused by the admin. The router is not alive and does not make decisions.
Look in a mirror.

Please post your full config /export (minus serial number and any public WANIP type information )

did you hear what i said? some NAT still works and some not working
And they were all working before for several months ago until like yesterday
what does posting config going to do here?
this is a weird thing and just want to start with what could cause this for anyone with experience with this

Then take your rants elsewhere or at least have the courage to post your config so we can attempt to find out if the config is an issue or more likely you have a flaky ISP.

Then take your rants elsewhere or at least have the courage to post your config so we can attempt to find out if the config is an issue or more likely you have a flaky ISP.

flaky ISP so some NAT works and other stopped working?
IP in the same block, how is that possible?

You'd be surprised ... could even be on your ISP modem.

Logical thinking:
A- a router does not change config on its own (as far as I know there is still no AI involved on those things ...)
B- You claim you did not change anything on the router. We believe you and will continue with that.
C- Something which did work before, all of a sudden doesn't anymore
D- Given C, something has changed
E- Given A, B and D, the change was elsewhere

Start with an anonymized config export (that was requested already), post it here in code blocks if you want to recieve any helpful answers.

Start with an anonymized config export (that was requested already), post it here in code blocks if you want to recieve any helpful answers.

I dont think that will help anything, this is a weird issue not a misconfiguration
you guys should stop opting first for configuration
i get you want to help but just dont always ask for config all the time
this is not a misconfiguration issue so config will not help at all

i have same exact setup for other NAT that work but the others stopped working
i did not make any change whatsoever
i can curl the website with host headers on private local ip but i can when i use the public ip
but this works for other website, certain public IPs are affected but i have some that work

I have no idea how to troubleshoot this and please again this is not a misconfiguration as was working before and just stopped yesterday
I am thinking i will change to another set of public IPs left in my block to test, that is all i can do now

Ok, my magic crystal ball disagrees with you, and I trust it more than I trust your words.

Clearly you know what the problem is and are then wasting our time.
I personally have better things to do then spend it on your arrogance.

It happened before that seemingly correct config was working only by accident... most of the time until it didn't. I'd say it's more likely than weird bug in RouterOS. But if you want to debug it yourself, no problem. You know what traffic you're expecting, so check if it comes at all, if it passes through router as it should, or where exactly it gets lost if it doesn't. You can use Torch on interfaces, packet sniffer or logging rules in firewall. If you choose the last option, here's a helpful image:

viewtopic.php?p=768157#p768157

Any incoming traffic will be first in prerouting, then it will go either to input (if it's for router itself) or to forward (if it's for another device) and then to postrouting. Good place for logging rules is in mangle. You'll need some conditions for rules to match the right traffic, which can be using source or destination, unique ports, whatever is appropriate, it depends on existing config (you don't want to catch unrelated trafic or have conflicts with other stuff).

Solved: the user do not want help, see post #10

I dont think that will help anything, this is a weird issue not a misconfiguration

In reality the Uber Web Guru was just testing us all, and he wanted to teach us how to help others, because he knows how to do it better than anyone:

you guys should stop opting first for configuration
i get you want to help but just dont always ask for config all the time

I thought I was the most as–ole, but you beat me !!!
Really Uber !!!

This isn't the first time you facing that Guru
viewtopic.php?p=937499#p937680

Dear Guru of my a–

Remember this?
viewtopic.php?p=930306#p930457

Issue solved

Apparently my static IP block on ISP gateway was on private subnet, i called them to explain this weird issue and they changed it to public subnet and everything is now working fine now
one of the weirdest thing for me to troubleshoot. Wasn't aware a static ip can have private subnet setting on ISP gateway
Issues was not mikrotik config at all
Happy all solved now

thanks for the help at least

Also consider updating the software on various other devices,
and other administrators who manage the other routers involved in the operation of the Internet...

I am the only person managing the router..this is a home setup not a company
i am not talking about config for now, just ranting about why these types of weird things happen with mikrotik

poorly written as it is in English, don't you understand that the phrase means that there are OTHER ROUTERS and OTHER Administrators involved in the operation of the Internet?

No need for "Schlammschlachten". Closing