7.1.2 Configuration Files................................................................................................................................141

7.1.3 Configuration Files and Current Configurations...................................................................................141

7.2 Managing Configuration Files........................................................................................................................142

7.2.1 Establishing the Configuration Task.....................................................................................................142

7.2.2 Saving Configuration Files....................................................................................................................143

7.2.3 Clearing a Configuration File................................................................................................................144

7.2.4 Comparing Configuration Files.............................................................................................................145

7.2.5 Checking the Configuration...................................................................................................................146

7.3 Specifying a File for System Startup..............................................................................................................147

7.3.1 Establishing the Configuration Task.....................................................................................................147

7.3.2 Configuring System Software for a router to Load for the Next Startup..............................................147

7.3.3 Configuring the Configuration File for Router to Load for the Next Startup.......................................148

7.3.4 Checking the Configuration...................................................................................................................148

7.4 Configuration Examples.................................................................................................................................149

7.4.1 Example for Configuring System Startup.............................................................................................149

8 Accessing Another Device.......................................................................................................152

8.1 Accessing Another Device.............................................................................................................................153

8.1.1 Telnet Method........................................................................................................................................153

8.1.2 FTP Method...........................................................................................................................................155

8.1.3 TFTP Method........................................................................................................................................155

8.1.4 SSH Method..........................................................................................................................................156

8.2 Logging in to Other Devices by Using Telnet................................................................................................157

8.2.1 Establishing the Configuration Task.....................................................................................................157

8.2.2 (Optional) Configuring a Source IP Address for an Telnet Client........................................................158

8.2.3 Logging in to Another Device by Using Telnet....................................................................................158

8.2.4 Checking the Configuration...................................................................................................................159

8.3 Connecting to Another Device by Using the Telnet Redirection Function....................................................160

8.3.1 Establishing the Configuration Task.....................................................................................................160

8.3.2 Enabling the Telnet Redirection Function.............................................................................................161

8.3.3 Connecting Another Device by Using the Telnet Redirection Function...............................................162

8.3.4 Checking the Configuration...................................................................................................................162

8.4 Logging in to Another Device by Using STelnet...........................................................................................163

8.4.1 Establishing the Configuration Task.....................................................................................................163

8.4.2 Configuring the First Successful Login to Another Device (Enabling the First-Time Authentication on

the SSH Client)...............................................................................................................................................163

8.4.3 Configuring the First Successful Login to Another Device (Allocating an RSA Public Key to the SSH

Server)............................................................................................................................................................164

8.4.4 Logging in to Another Device by Using STelnet..................................................................................166

8.4.5 Checking the configuration...................................................................................................................166

8.5 Accessing Files on Another Device by Using TFTP......................................................................................167

8.5.1 Establishing the Configuration Task.....................................................................................................167

8.5.2 (Optional) Configuring a Source IP Address for a TFTP Client...........................................................168

8.5.3 (Optional) Configuring TFTP Access Authority...................................................................................168

Issue 02 (2011-09-10)

Huawei Proprietary and Confidential

Contents

Table of Contents