Motorola MT2070 用户手册

2 - 50 MT2070/MT2090 User Guide

To select a tunneled authentication type:

Select a tunneled authentication type from the drop-down list. See 

 for the Tunnel Authentication 

options for each authentication type.

Select the User Certificate check box if a certificate is required. If the TLS tunnel type that requires a user 
certificate is selected, the check box is already selected.

Tab to Next > and press ENT. The Installed User Certificates dialog displays.

CHAP 

X 

Challenge Handshake Authentication Protocol (CHAP) is one of the two 
main authentication protocols used to verify the user name and 
password for PPP Internet connections. CHAP is more secure than 
PAP because it performs a three way handshake during the initial link 
establishment between the home and remote machines. It can also 
repeat the authentication anytime after the link is established.

EAP-GTC

X 

X

EAP-GTC is used during phase 2 of the authentication process. This 
method uses a time-synchronized hardware or software token 
generator, often in conjunction with a user PIN, to create a one-time 
password.

MD5

X

 Message Digest-5 (MD5) is an authentication algorithm developed by 
RSA. MD5 generates a 128-bit message digest using a 128-bit key, 
IPSec truncates the message digest to 96 bits.

MS CHAP

X 

Microsoft Challenge Handshake Authentication Protocol (MS CHAP) is 
an implementation of the CHAP protocol that Microsoft created to 
authenticate remote Windows workstations. MS CHAP is identical to 
CHAP, except that MS CHAP is based on the encryption and hashing 
algorithms used by Windows networks and the MS CHAP response to 
a challenge is in a format optimized for compatibility with Windows 
operating systems.