How can we create multiple dummy interfaces on Linux?

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linux networking network-interface modprobe virtual-interface

                          To Create a Fake Ethernet dummy Interface On Linux we First initialize the dummy interface driver using the below command:
**/sbin/modprobe dummy**.  
Then we Assign Ethernet Interface alias To Dummy Driver we just initialized above.

But it gives the following Fatal error saying:
**FATAL: Module dummy not found.**

Also, at the path    **cd /sys/devices/virtual/net#** , we can see that there are virtual interfaces present by the following names:    
dummy0/ lo/     sit0/   tunl0/

**ifconfig -a**    

    dummy0:   Link encap:Ethernet  HWaddr aa:3a:a6:cd:91:2b    
              BROADCAST NOARP  MTU:1500  Metric:1  
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0  
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0   
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    
    lo:     Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0  
              inet6 addr: ::1/128 Scope:Host  
              UP LOOPBACK RUNNING  MTU:16436  Metric:1  
              RX packets:111 errors:0 dropped:0 overruns:0 frame:0  
              TX packets:111 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0   
              RX bytes:8303 (8.1 KiB)  TX bytes:8303 (8.1 KiB)
    
    sit0:      Link encap:UNSPEC  HWaddr 00-00-00-00-FF-00-00-00-00-00-00-00-00-00-00-00    
              NOARP  MTU:1480  Metric:1  
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0  
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0   
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
    
    tunl0:  Link encap:IPIP Tunnel  HWaddr   
              NOARP  MTU:1480  Metric:1  
              RX packets:0 errors:0 dropped:0 overruns:0 frame:0  
              TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0   
              RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)  

So, the modprobe command is not able to load the kernel module.  
How can we load a kernel module using **modprobe** or insmod to initialize a dummy interface driver?  
Can we create multiple dummy interfaces on a single loaded module?   
                        

Asked by Kushal (367 rep)

Jan 6, 2017, 06:09 AM
Last activity: Dec 16, 2017, 11:05 AM

How can we create multiple dummy interfaces on Linux?

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