@Roberto.N.R You should really do some reading and searching before you post. There are a lot of reading materials that are helpful .

@BengGaBoy BengGaBoy wrote @Clive_A Thanks. Just to check, which protocol(s) should I exclude to avoid the internet issue but still able to block management web GUI access? Doesnt the Hank's answer...

@Ric04jan72 First, fix your loop and it fixes your block.

@dalyvk-engine Totally agree with kjk. You are doing it wrong. There's nothing on the switch and doing the routing. If they are on the mac address table, which means connected to the same switch,...

@G0tta_be_KD Mac address was supposed to be auto renew. Guess you have configured something else? Mac address learning? Or port security?

@akp55 3210xhp-m2?