Ubuntu – Problem with Bridged Networking on OS X + Ubuntu with VirtualBox

Answering my own question, as the information is located in two places and not easily searchable, hopefully this helps someone else.

The problem is that the VSOCK module isn't getting compiled, despite gcc, binutils and the kernel source packages all being present.

ii  binutils                                  2.19.1-0ubuntu3                    The GNU assembler, linker and binary utiliti
ii  gcc                                       4:4.3.3-1ubuntu1                   The GNU C compiler
ii  linux-headers-2.6.28-11                   2.6.28-11.42                       Header files related to Linux kernel version
ii  linux-headers-2.6.28-11-server            2.6.28-11.42                       Linux kernel headers for version 2.6.28 on x
ii  linux-image-2.6.28-11-server              2.6.28-11.42                       Linux kernel image for version 2.6.28 on x86
ii  linux-source-2.6.28                       2.6.28-11.42                       Linux kernel source for version 2.6.28 with 

There is actually a bug filed on Launchpad about this issue, and a user submitted a patch to a similar query on Ubuntu Forums. Patching the vmware-config.pl as described worked for me. Here's the patch:

--- /usr/bin/vmware-config.pl.orig  2008-11-28 12:06:35.641054086 +0100
+++ /usr/bin/vmware-config.pl   2008-11-28 12:30:38.593304082 +0100
@@ -4121,6 +4121,11 @@
     return 'no';
   }

+  if ($name eq 'vsock') {
+    print wrap("VMWare config patch VSOCK!\n");
+    system(shell_string($gHelper{'mv'}) . ' -vi ' . shell_string($build_dir . '/../Module.symvers') . ' ' . shell_string($build_dir . '/vsock-only/' ));
+  }
+
   print wrap('Building the ' . $name . ' module.' . "\n\n", 0);
   if (system(shell_string($gHelper{'make'}) . ' -C '
              . shell_string($build_dir . '/' . $name . '-only')
@@ -4143,6 +4148,10 @@
     if (try_module($name, $build_dir . '/' . $name . '.o', 0, 1)) {
       print wrap('The ' . $name . ' module loads perfectly into the running kernel.'
                  . "\n\n", 0);
+      if ($name eq 'vmci') {
+   print wrap("VMWare config patch VMCI!\n");
+   system(shell_string($gHelper{'cp'}) . ' -vi ' . shell_string($build_dir.'/vmci-only/Module.symvers') . ' ' . shell_string($build_dir . '/../'));
+      } 
       remove_tmp_dir($build_dir);
       return 'yes';
     }

Try the Tokamak Networking Scripts for VMware Fusion, they provide advanced networking setup and might possibly do what you're looking for...

WARNING: If you have a Home Directory protected by FileVault, DO NOT INSTALL FROM WITHIN THAT DIRECTORY! It will mess up FileVault (happeend to me once)

EDIT: You might also try this thread on the VMware community forums. An exerpt for you:

After seeing this post by powervm: http://communities.vmware.com/thread/151384?tstart=0

I was able to get bonded nics/link aggregates to work.

edit /Library/Application Support/VMware Fusion/boot.sh and look for the vmnet-bridge section and edit accordingly.

vmnet-bridge puts itself in background (daemon mode)
Bridge to host network interface 'en0'.
"$LIBDIR/vmnet-bridge" -d /var/run/vmnet-bridge-vmnet0.pid vmnet0 en0
Bridge to host network interface 'en1'
"$LIBDIR/vmnet-bridge" -d /var/run/vmnet-bridge-vmnet2.pid vmnet2 en1
#"$LIBDIR/vmnet-bridge" -d /var/run/vmnet-bridge-vmnet3.pid vmnet3 bond0
Bridge to the primary host network interface (which can change over time).
#"$LIBDIR/vmnet-bridge" -d /var/run/vmnet-bridge-vmnet0.pid vmnet0 ''

Edit the vmx file for your virtual machine and change 

ethernet0.connectionType = "bridged"
ethernet0.vnet = "/dev/vmnet0"

to

ethernet0.connectionType = "custom"
ethernet0.vnet = "/dev/vmnet0"

make sure fusion isnt running and restart it with

sudo /Library/Application\ Support/VMware\ Fusion/boot.sh --restart 

Im not certain what speed im getting on the link in the VM, as task manager states it running at 10mb/s as does the driver. But I have network connectivity, which is all I wanted.