Access to NFS from a specific ip?

Question

linux

Good day!
I climbed a bunch of forums, re-read a mountain of articles, all in vain.
There is a project by scanning ip
showmount -e 188.82.23.12
I got open directories, as far as I understand.
Resources mounted using mountd
Found resources:
"/opt/"
access is possible with 172.1.1.0/23
Access is possible with ip 172.1.1.0/23
Can someone explain what they eat with what, how to implement this ip address, maybe there is reading on such a topic.

Answer 1

showmount -e 188.82.23.12 shows which directories are accessible to whom on the specified server.
If your ip is on the allowed list for a certain share from the list, you can use an NFS client to connect to it.
If not, you need to reconfigure the balls so that you have access.
Those. currently, you can connect from any machine on the 172.1.1.0/23 subnet to the /opt directory on 188.82.23.12.
If you have linux, and ip is in the right range, for example, you can mount NFS like this:
sudo mount 188.82.23.12:/opt /mnt

Answer 2

What does it mean to "realize the given ip address"?
Here is a small subnet /23 (512 addresses), possibly some real organization. Or maybe even crap admin 188.82.23.12, who instead of the local subnet 172.16.1 registered the real 172.1.1