SNMP and NATs. Don't really understand what is going on.

So this Huawei router is not comunicating through SNMP. I check the router, and there are these weird NAT entries in the WAN sub interface.

nat server protocol tcp global current-interface 20443 inside 10.0.0.150 443

 nat server protocol tcp global current-interface 21443 inside 10.0.0.50 443

 nat server protocol tcp global current-interface 21022 inside 10.0.0.50 22

 nat server protocol udp global current-interface 20161 inside 10.0.0.150 snmp

 nat server protocol tcp global current-interface 20022 inside 10.0.0.150 22

 nat server protocol udp global current-interface 21161 inside 10.0.0.50 snmp

Can this keep the router from interacting with our platforms? Keep in mind that these IP addresses are not ours, but from the client.
Do these NATs mean port 22 is open? Is SNMP being sent into these local addresses?
Huawei is not my strong suit.