the “Apply” button. The “Select All” select box can also be used to delete the entire filter rule. It provides a quick method of selecting all filter rules for deletion.
The “Enable MAC Filters” button allows the user to enable or disable MAC filtering. It can be set/unset during any add/edit/delete operation. It can also be set/unset independently by just clicking the “Apply” button.
Figure 15 (MAC Filters)
Note: The MAC filter table contains 3 hidden rules. These rules are entered automatically by the system to ensure the user does not "lock" them out of the system. The first rule allows any and all ARP frames through the system. The second rule allows all IPv4 frames with the destination MAC address of the bridge to go through. The third rule allows all IPv4 frames with the source MAC address of the bridge to go through.
Note: On a Windows based machine, to find a MAC address, at the DOS prompt type ipconfig /all.
The Apply button will temporarily save this connection. To make the change permanent, you need to click on Save Settings (at the side of the page). At the system commands page, click on Save All.
4.6.7 Multicast
Multicasting is a form of limited broadcast. UDP is used to send datagrams to all hosts that belong to what is called a "host group". A host group is a set of zero or more hosts identified by the same destination IP address. The following statements apply to host groups.
a.Anyone can join or leave a host group at will.
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