Chapter 3. Terminal Menu Operation and Structure
61200176L1-1
Express 6100/6120 User Manual
3-27
number of attempts to communicate with the primary server is equal to
the retry count, the secondary server (if defined) is tried. If the secondary
server does not respond within the retry count, the PPP peer (or Telnet
session) is not authenticated and is dropped. The default is 5.
»» Security/PPP
Write security: 1; Read security: 2
The PPP peer can be authenticated using three standard methods:
PAP (Password Authentication Protocol), CHAP (Challenge Hand-
shake Protocol) and EAP (Extensible Authentication Protocol). The
strength of the authentication is determined in the order EAP, CHAP,
followed by PAP, where EAP is the strongest and PAP is the weakest.
PAP is a clear-text protocol, which means it is sent over the PPP link
in a readable format. Care must be taken not to allow highly sensitive
passwords to become compromised using this method. CHAP and
EAP use a one-way hashing algorithm which makes it virtually im-
possible to determine the password. EAP has other capabilities which
allow more flexibility than CHAP.
The following selections are possible:
»» Security/Filter Defines
The Express 6100/6120 can filter packets based on certain parameters
within the packet. The method used by the Express 6100/6120 allows
the highest flexibility for defining filters and assigning them to a pro-
file. The filters are set up in two steps: (1) defining the packet types,
and (2) adding them to a list under the PPP profile or DLCI map. See
PAP, CHAP or
EAP (def)
The Express 6100/6120 will ask for EAP during
the first PPP LCP negotiation and allow the PPP
peer to negotiate down to CHAP or PAP.
CHAP or EAP
The Express 6100/6120 will ask for EAP during
the first PPP LCP negotiation and allow the PPP
peer to negotiate down to CHAP but not PAP.
EAP
The Express 6100/6120 will only allow EAP to be
negotiated. If the PPP peer is not capable of doing
EAP, then the connection will not succeed.
Содержание Express 6100
Страница 1: ...Express 6100 6120 IDSL Router Bridge Part Numbers 1200176L1 L4 Document Number 61200176L1 1B July 2000...
Страница 16: ...xvi Express 6100 6120 User Manual 61200176L1 1 Table of Contents...
Страница 18: ...xviii Express 6100 6120 User Manual 61200176L1 1 List of Figures...
Страница 20: ...xx Express 6100 6120 User Manual 61200176L1 1 List of Tables...
Страница 22: ...Quick Startup Guide Quick Start 2 Express 6100 6120 User Manual 61200176L1 1...
Страница 34: ...Chapter 2 Installation 2 2 Express 6100 6120 User Manual 61200176L1 1...
Страница 110: ...Chapter 3 Terminal Menu Operation and Structure 3 76 Express 6100 6120 User Manual 61200176L1 1...
Страница 112: ...Chapter 4 Specifications 4 2 Express 6100 6120 User Manual 61200176L1 1...
Страница 126: ...Appendix B Log Messages B 12 Express 6100 6120 User Manual 61200176L1 1...
Страница 130: ...Appendix C SNMP C 4 Express 6100 6120 User Manual 61200176L1 1...
Страница 136: ...Appendix E Terminal Mode Commands E 4 Express 6100 6120 User Manual 61200176L1 1...
Страница 140: ...Acronyms Acronyms 4 Express 6100 6120 User Manual 61200176L1 1...
Страница 160: ...61200176L1 1 Express 6100 6120 User Manual Index 8 Index...