Enterasys csx5500 用户指南
Central Site Remote Access Switch 395
C
ONFIGURING
O
THER
A
DVANCED
O
PTIONS
Default Async Protocol
Note:
If the CyberSWITCH is configured for PPP Mode, the caller at the remote device can
override this through manual intervention. The caller must initiate four carriage returns
upon call connection to notify the system that the caller requests console access. (These CRs
must take place within the time specified in the data timeout value).
override this through manual intervention. The caller must initiate four carriage returns
upon call connection to notify the system that the caller requests console access. (These CRs
must take place within the time specified in the data timeout value).
A
UTOSENSE
F
EATURE
When the CyberSWITCH receives an incoming call, it doesn’t know what type of device is at the
remote end. The CyberSWITCH uses an autosense feature to determine the type of connection. This
feature looks at the first few bytes of received data to determine connection type. If data matches a
known protocol id, the CyberSWITCH enters PPP mode for that connection. If the received data
does not match a known protocol id and is displayable ASCII characters, the CyberSWITCH enters
terminal mode for that connection.
remote end. The CyberSWITCH uses an autosense feature to determine the type of connection. This
feature looks at the first few bytes of received data to determine connection type. If data matches a
known protocol id, the CyberSWITCH enters PPP mode for that connection. If the received data
does not match a known protocol id and is displayable ASCII characters, the CyberSWITCH enters
terminal mode for that connection.
L
IMITATIONS
Note the following limitations concerning Terminal Mode connections:
•
•
supported on asynchronous types of connections via a digital modem connection
•
cannot use SLIP protocol
•
requires device + user-level security configuration (in System Security)
•
can use RADIUS for user-level authentication but not device authentication
•
Terminal mode users must have a device entry configured in either the on-node device data-
base or Connection Services Manager (CSM). This entry may be configured manually or
base or Connection Services Manager (CSM). This entry may be configured manually or
.
•
All terminal mode connections must use the same off-node user-level authentication.
•
There is a maximum of 8 simultaneous user-level authentication sessions, which include Ter-
minal Mode and Telnet authentication sessions.
minal Mode and Telnet authentication sessions.
I
NTERACTIONS
WITH
O
THER
F
EATURES
Authentication and Call Control:
•
•
User-level authentication: The user-level authentication process is used on all terminal mode con-
nections.
nections.
•
Device-level authentication: If device-level security is desired in addition to user-level security,
the device name (on-node or CSM) must match the login id provided in user-level authentica-
tion. Also, the user name and password in the dial-up networking configuration on the PC cli-
ent must match the device name and password/secret configured on-node or in CSM. Finally,
the Outbound Authentication flag in the device configuration must be set to enabled. If Out-
bound Authentication is set to disabled, only the user-level authentication will take place for
the terminal mode connection.
Note:
the device name (on-node or CSM) must match the login id provided in user-level authentica-
tion. Also, the user name and password in the dial-up networking configuration on the PC cli-
ent must match the device name and password/secret configured on-node or in CSM. Finally,
the Outbound Authentication flag in the device configuration must be set to enabled. If Out-
bound Authentication is set to disabled, only the user-level authentication will take place for
the terminal mode connection.
Note:
Even if you do not wish to use device-level authentication, you must still configure a
device entry for terminal mode users. This entry will provide the CyberSWITCH with
important protocol information concerning the terminal mode connection.
device entry for terminal mode users. This entry will provide the CyberSWITCH with
important protocol information concerning the terminal mode connection.
•
CSM Call Control: If call control by CSM is desired, a device matching the user-level authenti-
cation login id must be configured in CSM. This is true even if there is already an on-node de-
vice entry for this user.
cation login id must be configured in CSM. This is true even if there is already an on-node de-
vice entry for this user.