I know it's an old topic, but maybe it is possible to configure port mirroring in the CHR version?

I found way. You need to downgrade to 2.4, set the password and update again to 2.5. It works for me.

I have the same problem but with "CSS106-5G-1S" It's new switch, no changed default password, I only update to 2.5.

it is possible?

How can I assign a client MAC to a particular port on CRS226 devices? For anyone outside of the address you could not access the ETH port.
The port only accepts the MAC entered.