Avaya Mobile Communication 3100 Planning and Engineering Instrukcja Użytkownika Pobierz pdf (Strona 18)

18 Planning

The MCG 3100 queries a corporate Lightweight Directory Access Protocol

(LDAP) server when the users use the Directory lookup feature on their

clients. The MCG 3100 supports the following LDAP servers:

•

Active Directory/Exchange Server 2000 or 2003

•

Nortel Common Network Directory (CND), which is part of Telephony

Manager (TM) 3.1 in CS 1000

Password protection

The MC 3100 handles passwords using the following mechanisms:

•

The User Endpoint Password is configured by the Administrator on the

Network Routing Service (NRS) running in SIP proxy (SPS) mode.

•

The MCG 3100 authenticates the user login by attempting to register

the user to the NRS.

— If the registration attempt succeeds, the MCC 3100 login attempt

succeeds.

— If the registration attempt fails, the MCC 3100 login attempt fails.

The NRS uses an MD5 challenge-response exchange, as defined in

RFC3261/RFC2617.

• When the MCC 3100 is used on a device that does not access the

enterprise through a BES, the administrator can configure the system

to use HTTPS. The user password is entered on the device and

protected using TLS/AES over the public internet. HTTPS is used

end-to-end between the MCG 3100 and the MCC 3100.

•

Communication between the BlackBerry and BES are secured using

triple DES to secure data traffic over the public internet.

• Traffic between the MCG 3100 and BES uses HTTP, which implies

that passwords can be seen in clear text in the XML body of the HTTP

messages. Efforts must be taken to minimize the risk by using either an

encrypted tunnel or through physical means.

High availability

You can deploy the MCG 3100 as a nonredundant server or in a

redundant pair. Figure 4 "MCG 3100 high availability configuration"

(page 19) shows the redundant pair configuration that enables the high

availability solution.

Nortel Mobile Communication 3100

Nortel Mobile Communication 3100 Planning and Engineering

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Avaya Mobile Communication 3100 Planning and Engineering Instrukcja Użytkownika Strona 18