Module 3 Lab 3 - Basic Interface Configuration

Configuring a static management address for a switch is a common procedure for any network administrator. It is important to carefully assign IP addresses to devices to ensure proper control. This can be done using the CLI CLICK interface, which allows easy management of the switch configuration.

Step 1: Log in to the device and check the current management ip address assigned by DHCP:
In the first step, we need to log in to the device using the default credentials and list the IP addresses of all interfaces. The management interface is eth0. 

Step 2: Change the ip address of the management interface and save the configuration. 
In the second step, change the default IP address of the management interface to 192.168.200 and save the configuration to avoid losing it.  

Step 3: Verify the correctness of the exercise.

In this step, reboot the device and check the ip addresses of the interfaces to confirm that the exercise was done correctly.

 

router2

  • Default credentials: admin / YourPaSsWoRd 
  • The name of the management interface is eth0 

 The purpose of the lab is to practice the basic commands for listing user accounts and changing their passwords. 

Step 1: Log in to the device and check the current management ip address assigned by DHCP. 

 1. Debian GNU/Linux 10 sonic ttyS0 

 2.  

 3. sonic login: admin 

 4. Password: 

 5. Last login: Wed Sep 27 10:49:12 CEST 2023 on ttyS0 

 6. Linux sonic 5.10.082amd64 #1 SMP Debian 5.10.46-5 (2021-09-23) x86_64 

 7. You are on 

 8.   ____   ___  _   _ _  ____ 

 9.  / ___| / _ \| \ | (_)/ ___| 

10.  \___ \| | | |  \| | | | 

11.   ___) | |_| | || | |___ 

12.  |____/ \___/|_| \_|_|\____| 

13.  

14. Software for Open Networking in the Cloud  

15.  

16. Unauthorized access and/or use are prohibited. 

17. All access and/or use are subject to monitoring. 

18.  

19. Help:    http://azure.github.io/SONiC/ 

20.  

21. admin@sonic:~$ show ip interfaces 

22. Interface    IPv4 address/mask    Master    Admin/Oper    BGP Neighbor    Neighbor IP    Flags 

23. ———–  ——————-  ——–  ————  ————–  ————-  ——- 

24. docker0      240.127.1.1/24                 up/down       N/A             N/A 

25. eth0         192.168.122.84/24              up/up         N/A             N/A 

26. lo           127.0.0.1/8                    up/up         N/A             N/A 

27. admin@sonic:~$ 

 

Step 2: Change the ip address of the management interface and save the configuration. 

 1. admin@sonic:~$ show ip interfaces 

 2. Interface    IPv4 address/mask    Master    Admin/Oper    BGP Neighbor    Neighbor IP    Flags 

 3. ———–  ——————-  ——–  ————  ————–  ————-  ——- 

 4. docker0      240.127.1.1/24                 up/down       N/A             N/A 

 5. eth0         192.168.122.84/24              up/up         N/A             N/A 

 6. lo           127.0.0.1/8                    up/up         N/A             N/A 

 7. admin@sonic:~$ ^C 

 8. admin@sonic:~$ sudo config interface ip add eth0 192.168.122.200/24 

 9. admin@sonic:~$ sudo config save y 

10. Running command: /usr/local/bin/soniccfggen d printdata > /run/tmp6p83ldpx 

11. Running command: mv f /run/tmp6p83ldpx /etc/sonic/config_db.json 

12. Running command: sync;sync;sync 

13. 41416 Bytes written 

14. admin@sonic:~$ 

 

Step 3: Verify the correctness of the exercise. 

 1. admin@sonic:~$ sudo reboot 

 2. Config Down success! 

 3. supervisorprocexitlistener: stopped 

 4. requested COLD shutdown 

 5. True 

 6. Debian GNU/Linux 10 sonic ttyS0 

 7.  

 8. sonic login: admin 

 9. Password: 

10. Last login: Wed Sep 27 10:51:24 CEST 2023 on ttyS0 

11. Linux sonic 5.10.082amd64 #1 SMP Debian 5.10.46-5 (2021-09-23) x86_64 

12. You are on 

13.   ____   ___  _   _ _  ____ 

14.  / ___| / _ \| \ | (_)/ ___| 

15.  \___ \| | | |  \| | | | 

16.   ___) | |_| | || | |___ 

17.  |____/ \___/|_| \_|_|\____| 

18.  

19. Software for Open Networking in the Cloud  

20.  

21. Unauthorized access and/or use are prohibited. 

22. All access and/or use are subject to monitoring. 

23.  

24. Help:    http://azure.github.io/SONiC/ 

25.  

26. admin@sonic:~$ show ip interfaces 

27. Interface    IPv4 address/mask    Master    Admin/Oper    BGP Neighbor    Neighbor IP    Flags 

28. ———–  ——————-  ——–  ————  ————–  ————-  ——- 

29. docker0      240.127.1.1/24                 up/down       N/A             N/A 

30. eth0         192.168.122.200/24             up/up         N/A             N/A 

31. lo           127.0.0.1/8                    up/up         N/A             N/A 

32. admin@sonic:~$