Weidmuller IE-SR-2GT-LAN Manual page 35

Figure 33: Configuration  Network  Hardware groups  Tab „Configuration"
Creating groups with "speaking" names based on MAC addresses (layer 2). A hardware group can contain
any number of MAC addresses (for example, 00:15:7E:D9:09:00). Hardware groups can be used for better
readability than individual MAC addresses if you will create firewall filtering rules (See menu Configuration 
Packet filters  Layer 2).
Figure 34: Configuration  Network  Ethernet  Tab „Configuration"
Setting the transmission parameters of the LAN / WAN hardware interfaces.
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