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Reference Number: AA-00785 // Views: 13673 // Created: 2011-11-17 05:00:00 // Last Updated: 2020-04-06 17:50:13
How To: Change IP address or IP mask on a RedHat target through telnet
How To: Change IP address or IP mask on a Redhat target through telnet & mobaXterm
Please note that it is easier to change IP address and IP mask in RedHat GUI: https://www.opal-rt.com/support-knowledge-base/?article=AA-01176
Warning: wrongly changed IP or mask may leave the target not connectable through telnet
Note: To copy/paste on the telnet you can do a Ctrl+C of the commands of this article and copy using the click of the mouse wheel on the telnet window
1- Open a telnet session on RT-LAB. You can follow this article : https://www.opal-rt.com/support-knowledge-base/?article=AA-00786
Login and Password is the same one that you have on your binder ( usually Login: root / Password: oprt935$ or redhat)
2- Type "vi /etc/sysconfig/network-scripts/ifcfg-ethX"
where X is a number (eg. eth0)
3- You should have a page like this
4- Modidy the IP address higlighted on the previous image. Here the command that you will need to use to work with the vi pannel:
Move the cursor to the IPADDR line
Type "x" to delete the part that you want to modify
Type "i" to insert the new IP address
Click on escape "Esc" to stop the insert
Type ":wq" to save the file and quit or ":q!" to quit without saving
5- Then restart the target
Type: " /etc/init.d/network restart "
6- You can try to ping the new target using a cmd window
Here are the same steps if you want to use mobaXterm :
Please make sure to also update the \etc\hosts file if you're using Hypersim or wireshark.