of your corporate network whether your VPN client supports NAT
traversal.
o RTSP: 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.
o Windows/MSN Messenger: Supports use on LAN computers of
Microsoft Windows Messenger (the Internet messaging client that ships
with Microsoft Windows) and MSN Messenger. The SIP ALG must also
be enabled when the Windows Messenger ALG is enabled.
o FTP: Allows FTP clients and servers to transfer data across NAT.
o H.323 (Netmeeting): Allows H.323 (specifically Microsoft
Netmeeting) clients to communicate across NAT server.
o SIP: 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.
o Wake-On-LAN: This feature enables forwarding of "magic packets"
(that is, specially formatted wake-up packets) from the WAN to a LAN
computer or other device that is "Wake on LAN" (WOL) capable.
o MMS: Allows Windows Media Player, using MMS protocol, to receive
streaming media from the internet.
Click on the Apply button to store these settings.