Enterasys Networks ENTERASYS ATX manual Using ATX Port Filtering

Using ATX Port Filtering

•Port filters use the physical index number of a bridge port to determine whether traffic is to be screened at the port. These filters are useful for screening packets from being forwarded onto a port’s attached segment. When you use Port filters in combination with Bridge Address Table entries, you can create highly specific filtering conditions to allow certain packets to be forwarded onto a port’s attached segment, or be filtered from it. For example, you could make a filter that screens packets only if they are forwarded from Port 3 of the ATX, are AppleTalk protocol packets, and are destined for a station with an XYZ physical address.

The Port Filtering window (Figure 4-1)allows you to view and configure the ATX’s Port Filtering capabilities.

To access the Port Filtering window:

1.Click on the PPE’s Module Index (Module 1). The Module menu will appear.

2.Drag down Port Filtering, and release. The Port Filtering window, Figure 4-1, will appear.

Figure 4-1. ATX Port Filtering Window

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