User manual

Section 3 – Configuration
D-Link DSL-2500U User Manual
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Enable IGMP Snooping
Tick the checkbox to enable IGMP Snooping on the Router.
If the Router has been configured to work in Bridge Mode, click the Standard Mode radio button to specify that IGMP
traffic from the WAN connection will be flooded to each LAN port, even if the user hasn’t joined the IGMP group. Click
the Blocking Mode radio button to specify that IGMP traffic will be blocked, unless a LAN user requests to join an
IGMP group, e.g. to view an IPTV program, in which case the IGMP traffic will only flow to the user who joined the
IGMP group.
If the Router has been configured to work in one of the Routing Modes, the Router will only ever forward traffic to the
requesting client and not flood the other LAN ports.
DHCP Server
Click the Enable DHCP Server radio button to enable the DHCP Server function on the Router.
• Type the first IP address that you want to include in the DHCP range in the Start IP Address field.
• Type the last IP address that you want to include in the DHCP range in the End IP Address field.
• Type the Subnet Mask that you want DHCP hosts to use in the Subnet Mask field.
• Type the amount of time that DHCP leases should last (in hours) in the Leased Time field.
Static IP Lease List
This section allows you to view, create and delete Static IP Lease entries. (See the following page to find out how to use
the Static IP Lease list).
Configure the second IP
Address and Subnet
Mask for LAN interface
Tick the Configure the second IP Address and Subnet Mask for LAN interface checkbox if you want to enable a
second IP Address on the LAN connection. Type the IP Address and Subnet Mask you want to use as the second IP
address in the IP Address and Subnet Mask fields that appear below the checkbox.
When you have finished configuring the LAN settings, click either the Save or Save/Reboot button.