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LAN Setup 60
Model 3101 Series Getting Started Guide 5 • Advanced Configuration
Note
New settings can only be made after the 3101 has been rebooted. If
necessary, reconfigure the IP address on your PC (including one that
is statically assigned) so that it matches the new configuration.
Enabling IGMP Snooping
IGMP snooping enables the router to forward multicast traffic intelligently, instead of flooding all ports in the
VLAN. With IGMP snooping, the router listens to IGMP membership reports, queries and leave messages to
identify the switch ports that are members of multicast groups. Multicast traffic will only be forwarded to ports
identified as members of the specific multicast group or groups.
Select the checkbox to Enable IGMP Snooping (Figure 58) on the LAN Setup page (Figure 57 on page 59).
Figure 58. WMI: IGMP Snooping
Enabling the LAN Side Firewall
The firewall can prevent unexpected traffic on the Internet from your host to the LAN. Select the checkbox to
Enable LAN Side Firewall on the LAN Setup page (Figure 57 on page 59).
Configuring the DHCP Server
The Model 3101 has a DHCP server for which the factory setting is active. Consequently, the IP addresses of
the PCs are automatically assigned by the 3101.
To activate the DHCP server, select Enable DHCP Server (Figure 59) on the LAN Setup page (Figure 57 on
page 59). Define the range of IP addresses the 3101 should use to automatically assign IP addresses to the PCs.
Enter valid addresses for the Start IP Address and the End IP Address. If the DHCP server is active, you can
define a lease time. The Leased Time determines the period for which the PCs retain the IP addresses assigned
to them without changing them.
Figure 59. WMI: DHCP Server