Avaya Business Secure Router 252 Configuration - Basics Uživatelský manuál stáhnout pdf (Strana 95)

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Chapter 5 System screens 95

Nortel Business Secure Router 252 Configuration — Basics

Table 13 describes the labels in Figure 21.

Table 13 ALG

Label Description

Enable FTP

ALG

Select this check box to allow FTP (File Transfer Protocol) to send and

receive files through the Business Secure Router.

Enable H.323

ALG

Select this check box to allow applications using H.323 to go through

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.

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