5.1 Overview of User Login...................................................................................................................................67

5.2 Logging in to the Devices Through the Console Port......................................................................................67

5.2.1 Establishing the Configuration Task.......................................................................................................68

5.2.2 Configuring Console User Interface........................................................................................................68

5.2.3 Logging in to the router Through a Console Port....................................................................................68

5.2.4 Checking the Configuration.....................................................................................................................69

5.3 Logging in to the Devices Through the AUX Port...........................................................................................70

5.3.1 Establishing the Configuration Task.......................................................................................................70

5.3.2 Configuring AUX User Interface............................................................................................................71

5.3.3 Logging in to the routerThrough an AUX Port.......................................................................................71

5.3.4 Checking the Configuration.....................................................................................................................74

5.4 Logging in to the Devices by Using Telnet......................................................................................................75

5.4.1 Establishing the Configuration Task.......................................................................................................75

5.4.2 Configuring VTY User Interface.............................................................................................................76

5.4.3 (Optional) Configuring Local Telnet Users.............................................................................................77

5.4.4 Enabling the Telnet Service.....................................................................................................................77

5.4.5 (Optional) Configuring Listening Port Number for Telnet Server..........................................................78

5.4.6 Logging in to the router by Using Telnet................................................................................................79

5.4.7 Checking the Configuration.....................................................................................................................80

5.5 Logging in to the Devices by Using STelnet....................................................................................................81

5.5.1 Establishing the Configuration Task.......................................................................................................81

5.5.2 Configuring VTY User Interface.............................................................................................................82

5.5.3 Configuring SSH for the VTY User Interface.........................................................................................82

5.5.4 Configuring an SSH User and Specifying STelnet as One of Service Types.........................................83

5.5.5 Enabling the STelnet Server Function.....................................................................................................86

5.5.6 (Optional) Configuring the STelnet Server Parameters...........................................................................86

5.5.7 Logging in to the router by Using STelnet..............................................................................................88

5.5.8 Checking the Configuration.....................................................................................................................89

5.6 Common Operations After Login.....................................................................................................................90

5.6.1 Establishing the Configuration Task.......................................................................................................90

5.6.2 Switching User Levels.............................................................................................................................90

5.6.3 Locking User Interfaces...........................................................................................................................91

5.6.4 Sending Messages to Other User Interfaces............................................................................................92

5.6.5 Displaying Logged-in Users....................................................................................................................92

5.6.6 Clearing Logged-in Users........................................................................................................................93

5.6.7 Configuring Configuration Locking........................................................................................................93

5.7 Configuration Examples...................................................................................................................................94

5.7.1 Example for Configuring User Login Through a Console Port..............................................................94

5.7.2 Example for Logging In Through the AUX Port....................................................................................97

Issue 02 (2011-09-10)

Huawei Proprietary and Confidential

Contents

vii

Table of Contents