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4-1
7612-A2-GB20-10
November 1997
Security
4
Overview
The DSU provides several ways to control access to the ATI through option
settings. You can:
H Enable the Login Required option to require a Login ID for the:
— Terminal Port
— Telnet Session via the IP interfaces (the 10BaseT port or the IMC)
H Limit the access using:
— Port Access Level option of 1, 2, or 3 for the Terminal port
— Session Access Level option of 1, 2 or 3 for the Telnet Session
Refer to Table 4-1, Effective Access Levels.
H Disable the access using:
— In-Band Management Channel Rate (bps) option for the IMC
— Ethernet Port Use option
— Telnet Session option
Refer to
ATI Access
on page 4-3.
SNMP security is handled through Community Names with access levels and
IP address validation. Refer to
Controlling SNMP Access
on page 4-6.
Preventing access to the ATI by setting the In-Band Management Channel Rate
or Ethernet Port Use options to Disable also inhibits SNMP management over
those interfaces.