I am trying to do this open flow tutorial and I am completely new to networking and systems. I am a college student and I need help with this. I have finished a part of the tutorial (http://www.openflow.org/wk/index.php/OpenFlow_Tutorial) and I am able to get the "ssh -X mininet@ipaddress" command working. If i type xterm next, it is giving me a display is not set error but when I open the terminal again and just type xterm without typing the ssh -X thing, it is opening a new window for xterm. I am confused. Is that what it is supposed to do? The next part of the tutorial asks me to type "sudo mn --topo single,3 --mac --switch ovsk --controller remote" in my ssh terminal and this is what happened when i tried it.
Last login: Fri May 17 19:34:53 on ttys003
mobile-172-16-103-167:~ SHREYA20$ ssh -X mininet@192.168.56.1
Password:
X11 forwarding request failed on channel 0
Last login: Fri May 17 19:35:19 2013 from 192.168.56.1
mobile-172-16-103-167:~ mininet$ ssh -Y mininet@192.168.56.1
Password:
Last login: Fri May 17 23:46:27 2013 from 192.168.56.1
mobile-172-16-103-167:~ mininet$ sudo mn --topo single,3 --mac --switch ovsk --controller remote
WARNING: Improper use of the sudo command could lead to data loss
or the deletion of important system files. Please double-check your
typing when using sudo. Type "man sudo" for more information.
To proceed, enter your password, or type Ctrl-C to abort.
Password:
mininet is not in the sudoers file. This incident will be reported.
mobile-172-16-103-167:~ mininet$
I need to finish this tutorial soon and I need help with this. Any help would be greatly appreciated. Thank you!
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