I've been browsing through vmware-config-net.pl and I think I've got this figured out, but I want to do a sanity check with other people before making my modifications. Specifically, I've found that seven vmnets (ten total minus three special-purpose) simply isn't enough for what I do. Teams are ideal for me because they let me set up named network segments, but having more vmnets could work well enough.
I work for a rather well-known firewall company and I need to be able to simulate some decently complex networks. We're talking four or more gateways, each of which has at least three interfaces. Most of the time, I don't want these networks linked to the host or the outside world. I don't want any extraneous traffic in any captures I may have to do (nor do I want the chance of leaking data onto the public network). Thus, the three reserved vmnets are out.
Inside the vmware-config-net.pl script, I noticed several lines that look relevant.
# By convention, vmnet1 is the virtual ethernet interface connected to the
\# private virtual network that Samba uses. We are also reserving vmnet0
\# for bridged networks. These are reserved vmnets.
my $gDefBridged = '0';
my $gDefHostOnly = '1';
my $gDefNat = '8';
\# Reserved vmnets
my @gReservedVmnet = ($gDefBridged, $gDefHostOnly, $gDefNat);
\# Constant defined as the smallest vmnet that is allowed
my $gMinVmnet = '0';
\# Linux doesn't allow more than 7 characters in the names of network
\# interfaces. We prefix host only interfaces with 'vmnet' leaving us only 2
\# characters.
\# Constant defined as the largest vmnet that is allowed
my $gMaxVmnet = '99';
\# Constant defines as the number of vmnets to be pre-created
my $gNumVmnet = 10;[/code]
Now, from the look of it, I could change gNumVmnet to 100 and get up to 97 usable vmnets. Is that correct?
Does anyone know what the performance impact would be if I were to change gNumVmnet to, say, 20?
Since there's no interface to specify which vmnet to use yet, I would have to manually edit the vmx file. I can live with that, but I would also like to verify that
ethernet1.present = "TRUE"
ethernet1.connectionType = "custom"
ethernet1.vnet = "VMnet3"[/code]
is still the correct syntax. I've tried it in some VMs and it works. Is that the correct way to do it, or is there a better method now?
