This example is for:

• MacBook PRO
• VMware Fusion PRO
• Terminal app

To do:

• Quit VMware Fusion
• Open Terminal app
• Insert command:

MacBook-Pro ~ % sudo vim /Library/Preferences/VMware\ Fusion/networking
Password: *****

• Edit networking as you need. Here is an example:

VERSION=1,0
 answer VNET_1_DHCP yes
 answer VNET_1_DHCP_CFG_HASH 94FBD644B069B37AC268E3AF0B92BED6229C9EAE
 answer VNET_1_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_1_HOSTONLY_SUBNET 192.168.120.0
 answer VNET_1_VIRTUAL_ADAPTER yes
 answer VNET_8_DHCP yes
 answer VNET_8_DHCP_CFG_HASH 31A6A65AD36EBF281BD56B02C4F21576E1F247D6
 answer VNET_8_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_8_HOSTONLY_SUBNET 192.168.100.0
 answer VNET_8_NAT yes
 answer VNET_8_VIRTUAL_ADAPTER yes
 answer VNET_90_DHCP no
 answer VNET_90_DISPLAY_NAME ge-0/0/0
 answer VNET_90_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_90_HOSTONLY_SUBNET 172.17.90.0
 answer VNET_90_VIRTUAL_ADAPTER yes
 answer VNET_91_DHCP no
 answer VNET_91_DISPLAY_NAME ge-0/0/1
 answer VNET_91_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_91_HOSTONLY_SUBNET 172.17.91.0
 answer VNET_91_VIRTUAL_ADAPTER yes
 answer VNET_93_DHCP no
 answer VNET_93_DISPLAY_NAME eth1
 answer VNET_93_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_93_HOSTONLY_SUBNET 172.25.11.0
 answer VNET_93_NAT yes
 answer VNET_93_NAT_PARAM_UDP_TIMEOUT 30
 answer VNET_93_VIRTUAL_ADAPTER yes
 answer VNET_94_DHCP no
 answer VNET_94_DISPLAY_NAME eth2_to_ge-0/0/0
 answer VNET_94_HOSTONLY_NETMASK 255.255.255.0
 answer VNET_94_HOSTONLY_SUBNET 10.0.11.0
 answer VNET_94_NAT yes
 answer VNET_94_NAT_PARAM_UDP_TIMEOUT 30
 answer VNET_94_VIRTUAL_ADAPTER yes

• To delete you can use V in view mode to launch “VISUAL LINE” mode. Select your lines and type d to delete them.
• Add the networks you need.
• Save and exit: :wq
• Open Vmware Fusion and use the created networks. 

Good luck!!