D-Link DGL-4300 Network Router User Manual


 
Using the Configuration Interface
29 D-Link Systems, Inc.
Special Applications
The Special Application section is used to open single or multiple ports on your router when the
router senses data sent to the Internet on a ‘trigger’ port or port range. Special Applications rules
apply to all computers on your internal network.
Application Level Gateway (ALG) Configurations
Here you can enable or disable ALG’s. Some protocols and applications require special handling of
the IP payload to make them work with network address translation (NAT). Each ALG provides
special handling for a specific protocol or application. A number of ALGs for common applications are
enabled by default.
Allows multiple machines on the LAN to connect to their corporate network
using PPTP protocol.
Allows multiple VPN clients to connect to their corporate network using IPSec.
Some VPN clients support traversal of IPSec through NAT. This ALG may
interfere with the operation of such VPN clients. If you are having trouble
connecting with your corporate network, try turning this ALG off.
Please
check with the system adminstrator of your corporate network whether your
VPN client supports NAT traversal.
Allows applications that use Real Time Streaming Protocol to receive
streaming media from the internet. QuickTime and Real Player are some of
the common applications using this protocol.
Allows FTP clients and servers to transfer data across NAT. Refer to the
Advanced -> Virtual Server page if you want to host an FTP server.
Allows Microsoft NetMeeting clients to communicate across NAT. Note that
if you want your buddies to call you, you should also set up a virtual server
for NetMeeting. Refer to the Advanced -> Virtual Server page for information
on how to set up a virtual server.
Allows devices and applications using VoIP (Voice over IP) to communicate
across NAT. Some VoIP applications and devices have the ability to discover
NAT devices and work around them. This ALG may interfere with the
operation of such devices. If you are having trouble making VoIP calls, try
turning this ALG off.
Allows Windows Media Player, using MMS protocol, to receive streaming
media from the internet.
Allows multiple machines on the LAN to connect to their corporate network
using the L2TP protocol.
PPTP:
IPSec VPN:
RTSP:
FTP:
NetMeeting:
SIP:
MMS:
L2TP:
Advanced > Special Applications