Post Based VLAN

The technology you are attempting to configure is commonly referred to "Port Overlapping".  Implementing this technology is not a recommended configuration due to the consumption of the networking device's resources unnecessarily.

The configuration requires that each interface is configured as an untagged member for (2) VLANs -- the individual VLAN and a "shared" VLAN.  The PVID will correspond to the individual VLAN ID as outlined in the following table:

Int     VLAN ID     PVID
1          1,45            1
2          2,45            2
3          3,45            3
4          4,45            4
5          5,45            5
...
43        43,45         43
44        44,45         44
45          45            45

This configuration results in a significant impact on performance due to the nature of Layer 2 switching.  Ultimately, ALL frames from any interface are flooded to every active interface.  Thus, the unit will no longer switch traffic, but instead flood each frame -- converting the PowerConnect switch into a hub. 

The recommended method to implement inter-VLAN routing is to utilize a Layer 3 device capable of receiving IEEE 802.1Q tagged frames.  As such, each interface would be configured in only a single VLAN and the Layer 3 device would be responsible for routing each VLAN to the internet and also prohibiting inter-VLAN communication.  However, it is understood that with additional hardware comes additional cost, which is not always a viable option.