Tandberg 880 MXP User Manual download pdf (Page 270)

TANDBERG 770/880/990 MXP

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By setting an IP Access Password on the system, all access to the system using IP (Telnet, FTP

and WEB) requires a password. This password can be enabled from telnet or dataport using the

command: ippassword <ip-password>. The default IP username and password is "TANDBERG".

To remove this password, use the command: "ippassword ”. From telnet, this is only possible by

first entering the correct password.

Services

The different IP services on the system - FTP, Telnet, Telnet Challenge, HTTP, HTTPS, SNMP

and H.323 can be disabled to prevent access to the system. By using the commands below, the

services can be independently enabled/disabled:

xconfiguration Telnet/TelnetChallenge/FTP/HTTP/HTTPS/H323 Mode: <On/Off>

xconfiguration TelnetChallenge Mode: <On/Off> [port]

xconfiguration SNMP Mode: <On/Off/ReadOnly/TrapsOnly>

SNMP Security alert

This function will notify any Management Application (such as TMS - TANDBERG Management

Suite) if anyone tries to perform Remote Management on the system using an illegal password.

The Security alert that is sent to the Management Application will contain information about the IP

address and the service (WEB, Telnet, FTP) being used for the attempt. If TMS is used, email

notifications or alarms about the attempt can be sent to specified persons.

Encryption

All TANDBERG systems support both AES and DES encryption. By default this feature is

enabled such that when connecting with any other video system or MCU, a TANDBERG system

will attempt to establish a secure conference using AES or DES encryption. The TANDBERG

system will attempt this for both IP and ISDN connections. Where a remote system or MCU

supports encryption, the highest common encryption algorithm will be selected on a port-by-port

basis.

The type and status of the encryption negotiated is indicated by padlock symbols and on-screen

messages. Encryption on the TANDBERG systems is fully automatic, and provides clear security

status indicators;

 An open padlock indicates that encryption is being initialized, but the conference is not

yet encrypted.

 Single padlock indicates DES encryption.

 Double padlock indicates AES encryption.

In addition to on-screen indicators the Call Status menu provides two information fields regarding

call encryption. The first field is the Encryption Code, which will identify either AES or DES. The

second field is the Encryption Check Code and is comprised of an alphanumeric string. This

string will be the same for systems on either side of an encrypted conference. If the Check Codes

do not match, this would indicate that the call has been exposed to a Man In The Middle attack.

When a system with MultiSite functionality hosts a conference, the highest possible encryption

algorithm will be negotiated on a site-by-site basis. MultiSite conferences can therefore support a

mix of AES and DES encrypted endpoints in the same conference. A conference will only be as

secure as its weakest link.

All systems supporting DES encryption can upgrade to AES encryption. Please contact your

TANDBERG representative for more information. The standards supporting the encryption

mechanisms employed by TANDBERG are: AES, DES, H.233, H234 and H.235 (H235v3 & v2 for

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Tandberg 880 MXP User Manual Page 270

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Tandberg 880 MXP User Manual Page 270

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