Huawei VP9050 manual Setting 3G Parameters, Preventing recurring network attacks

HUAWEI VP9050 Executive Video Terminal
User Guide	3 Network Settings

 indicates that a data card has been removed, or the network connection of the data card is faulty.

3.4.2Setting 3G Parameters

To set the terminal's 3G parameters, do the following:

Step 1 Choose Settings > Network > 3G > 3G Settings, and then set the parameters listed in Table 3-9.

Table 3-93G parameters

Parameter	Description
Enable 3G	After enabling the 3G network, you can initiate an H.323 or SIP video
network	conference using the terminal over the 3G network.
IP address	This specifies the mode for obtaining an IP address. The default value is
type	Dynamic. It is recommended that you use the default value.
	 Dynamic: The terminal obtains an IP address dynamically and
	automatically from the network.
	 Static: The terminal uses an assigned IP address to connect to a specific
	server.
IP address	 If IP address type is set to Dynamic, the IP address assigned by the
	server is displayed in this text box only after a Point to Point Protocol
	(PPP) connection is established successfully. After being registered with
	the GK using the assigned IP address, the terminal can call remote sites
	using the relevant numbers, names, or IP addresses over the 3G network.
	 If IP address type is set to Static, you can enter the IP address
	manually.
Authenticatio	When the terminal is connected to a 3G network in PPP dial-up mode, the
n mode	authentication mode can be set to PAP or CHAP to prevent the access by
	unauthorized users. The default value is CHAP. It is recommended that
	you use the default value.
	 If you set the authentication mode to password authentication protocol
	(PAP), the user name and the password are transmitted over the network
	using plaintext. If the user name and the password are captured during
	transmission, the network security is at great risk. Therefore, you can use
	the PAP mode when the network security requirement is comparatively
	lower.
	 If you set the authentication mode to the Challenge-Handshake
	Authentication Protocol (CHAP), only the user name is transmitted over
	the network. Therefore, this authentication mode provides a higher
	security level than the PAP mode. In CHAP authentication mode, each
	inquiry message for authentication is unpredictable and unique,
	preventing recurring network attacks.

Issue 03 (2011-12-10)	Huawei Proprietary and Confidential	23
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