Force vmware to configure a network interface

by on March 1, 2006 · 5 comments· LAST UPDATED August 23, 2007

in , ,

This is funny but true. System developer updated the system including libc and other critical files. After upgrading system, they just rebooted the system and everything worked fine except VMWARE networking. Since they skipped the Linux kernel upgrade, VMWARE workstation was coming up but vmnet1 was not starting for some weird reason.

First, I restarted vmware service:

# /etc/init.d/vmware restart


Stopping VMware services:
Virtual machine monitor                                             done
Bridged networking on /dev/vmnet0                                   done
DHCP server on /dev/vmnet1                                          done
Host-only networking on /dev/vmnet1                                 done
Virtual ethernet                                                    done
Starting VMware services:
Virtual machine monitor                                             done
Virtual ethernet                                                    done
Bridged networking on /dev/vmnet0                                   done
   Host-only networking on /dev/vmnet1 (background)                    done

I thought vmnet1 is up and running (at least above output indicates this) but when I run ifconfig command:
# /sbin/ifconfig -a
There was no vmnet1 interface at all. This is one of production system and now things are complicated. Oh, boy I hate stupid developer(s) they will do anything to setup and run their development environment.

Anyways one of our senior UNIX admin pointed out me to use vmnet-netifup command :D. It is use to configure a virtual networking i.e. VMWARE network interfaces. The syntax is easy:
# vmnet-netifup -d /var/run/ /dev/vmnet1 vmnet1

  • -d /var/run/ : PID file for daemon mode
  • /dev/vmnet1 : Device file
  • vmnet1: Interface name (it can be eth1)

Assign an IP address:

# ifconfig vmnet up

It worked like a charm. It saved me from restoring Debian updates as well as reinstalling VMWARE.

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{ 5 comments… read them below or add one }

1 shao June 6, 2008 at 2:57 am

I use the command you give above to set up a v-net between 2 computers under linux, but when I use ping in one of them to another, it got something wrong. Why?
vmnet-netifup and ifconfig, there is no error.


2 Darrell September 14, 2008 at 3:29 pm

This may not be your problem, but it’s worth noting that it is normal for the vmnet interfaces not to appear until 30 seconds or more after you start the vmware service. (That’s why it says “background” when initializing vmnet1 — the initialization is continuing in the background after the service starts.)


3 Ray November 16, 2008 at 3:59 pm

This was a huge help.

I am not sure if the following line should read:
# ifconfig vmnet1 up

instead of:
# ifconfig vmnet up

When I used it on my vmnet2 (with the number) it worked.


4 gabriel March 6, 2010 at 2:22 am

when the vmnetX interface does not came up it’s because that IP is already being used.


5 dinu October 26, 2011 at 7:37 pm

thanks… worked perfect for me!!!


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