Table 13 Alg - Nortel BSR222 Configuration

Table 13 describes the labels in

Table 13 ALG

Label Description
Enable FTP Select this check box to allow FTP (File Transfer Protocol) to send and
ALG receive files through the Business Secure Router.
Enable H.323 Select this check box to allow applications using H.323 to go through
ALG the Business Secure Router.
H.323 is an application layer control (signaling) protocol that handles
the setting up, altering and tearing down of voice and multimedia
sessions over the Internet. H.323 is used in VoIP (Voice over IP), the
sending of voice signals over the Internet Protocol.
The H.323 ALG does not support H.323 Gatekeeper.
Enable SIP ALG Select this check box to allow SIP (Session Initiation Protocol)
applications to go through the Business Secure Router.
The Session Initiation Protocol (SIP) is an application layer control
(signaling) protocol that handles the setting up, altering and tearing
down of voice and multimedia sessions over the Internet. SIP is used in
VoIP (Voice over IP), the sending of voice signals over the Internet
Protocol.
To avoid retranslating the SIP device's IP address, do not use the SIP
ALG with a SIP device that is using STUN (Simple Traversal of User
Datagram Protocol (UDP) through NAT).
Apply Click Apply to save your changes to the Business Secure Router.
Reset Click Reset to begin configuring this screen afresh.
Figure 18.
Nortel Business Secure Router 222 Configuration — Basics
Chapter 5 System screens 91