what you want is the private vlan feature.   THis switch does not have this feature.  If you want a hack, look at this for an example. [URL]#19711446  
Hello, at work we use dell powerconnect 5224 and have 2 class C networks in one big broadcast domain. We need to make segmentation on the broadcast domain. But as i read im not sure do 5224 can make this segmentation inside it without to reconfigure our router because alot of our costumers have static network settings.  Do the pvlan is the only one solution to make this segmentaton and do our 5224 support it. Our firmware version is 3.1.0.16. The idea is for example 20 port's that can look and communicate with router port but cant communicate with each other directly. I cant make separate vlan with different gateway for every vlan inside our router because the network ip range is public and static. Any other sulutions are welcome. Thanks in advance  Marko
dell 5224 vlan segmentation