Ii-3-5 Alg - Draytek Vigor2860 User Manual

Triggering Port
Incoming Protocol
Incoming Port
After finishing all the settings here, please click OK to save the configuration.
I I - 3 - 5 A L
I I - 3 - 5 A L
ALG means Application Layer Gateway. There are two methods provided by Vigor router,
RTSP (Real Time Streaming Protocol) ALG and SIP (Session Initiation Protocol) ALG, for
processing the packets of voice and video.
RTSP ALG makes RTSP message, RTCP message, and RTP packets of voice and video be
transmitted and received correctly via NAT by Vigor router.
However, SIP ALG makes SIP message and RTP packets of voice be transmitted and received
correctly via NAT by Vigor router.
Available settings are explained as follows:
Item
Enable ALG
Listen Port
TCP
UDP
180
Type the port or port range for such triggering profile.
When the triggering packets received, it is expected the
incoming packets will use the selected protocol. Select the
protocol (TCP, UDP or TCP/UDP) for the incoming data of
such triggering profile.
Type the port or port range for the incoming packets.
G
G
Description
Check to enable such function.
Type a port number for SIP or RTSP protocol.
Check the box to make correspond protocol message packet
from TCP transmit and receive via NAT.
Check the box to make correspond protocol message packet
from UDP transmit and receive via NAT.
Vigor2860 Series User's Guide