DG-BR4000N/E User Manual
97
Disable IGMP
Proxying
IGMP proxy allows a PC in the LAN to receive certain multicast traffics
from the Internet. If you do not want to use IGMP proxy, select the
check box to disable IGMP proxy.
Default DMZ
Server
Enter the IP address of a computer or server that serves as a DMZ server.
MTU Size (in
bytes)
The maximum transmission unit. Normally, it is 1500 bytes for most
Ethernet networks, 1492 bytes for PPPoE connection and 1436 bytes for
PPTP connection. Certain ISPs may require smaller MTU, but this is a
rare case. Do not modify the value of MTU size unless it is necessary for
your ISP connection.
NAT Filtering
Determines the mode of the router to handle the input traffics.
•
Secured: It provides a secure firewall that protects personal
computers in a LAN against attacks from the Internet.
However, it causes malfunction of certain network
games, point-to-point (P2P) applications and multimedia
applications.
•
Open: It provides firewall settings of a lower security level. It
allows running of almost all network applications.
Enable IPv6
Pass-Through
By default, IPv6 pass-through is disabled. If your configuration contains
IPv6 devices and you want to replace IPv4 with IPv6, you can select the
check box to enable IPv6 pass-through.
After the settings are done, click Apply to save the settings.
