Problems encountered by novices in learning.

RouterOS General
1

Hello, please ask a question. log error report, how to add export? Here is the error log. Is there any documentation about this?

2

All information about RouterOS is to be found here:
https://help.mikrotik.com/docs/
http://wiki.mikrotik.com/wiki/Main_Page
and of course this forum (use the search facility)

3

dstnat: in:pppoe_DX out:(unknown 0), proto TCP (SYN), 117.161.75.117:56018->106.42.162.62:22, len 60
This is the error code

4

You may want to start here
https://forum.mikrotik.com/viewtopic.php?p=908118

5

It is not an error code. It is a log message from a firewall NAT rule. It can be logged for success or failure, depends on what the rule says and what your intentions are.

6

Crystal ball must be on sale where OP lives :confused: