Enterasys Networks CSX7000, CSX5500, CSX6000 manual Autosense Feature

CONFIGURING OTHER ADVANCED OPTIONS

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).

AUTOSENSE FEATURE

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.

LIMITATIONS

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 dynam- ically.

•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.

INTERACTIONS WITH OTHER FEATURES

Authentication and Call Control:

•User-level authentication: The user-level authentication process is used on all terminal mode con- 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: 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.

•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.

Central Site Remote Access Switch 395