From the page you mentioned, I put in this:
VERSION=1,0
answer VNET_2_HOSTONLY_NETMASK 255.255.255.0
answer VNET_2_HOSTONLY_SUBNET 192.168.102.0
answer VNET_2_VIRTUAL_ADAPTER yes
answer VNET_2_VIRTUAL_ADAPTER_ADDR 192.168.102.1
answer VNET_3_HOSTONLY_NETMASK 255.255.255.0
answer VNET_3_HOSTONLY_SUBNET 192.168.103.0
answer VNET_3_VIRTUAL_ADAPTER yes
answer VNET_3_VIRTUAL_ADAPTER_ADDR 192.168.103.1
answer VNET_4_HOSTONLY_NETMASK 255.255.255.0
answer VNET_4_HOSTONLY_SUBNET 192.168.104.0
answer VNET_4_VIRTUAL_ADAPTER yes
answer VNET_4_VIRTUAL_ADAPTER_ADDR 192.168.104.1
answer VNET_5_HOSTONLY_NETMASK 255.255.255.0
answer VNET_5_HOSTONLY_SUBNET 192.168.105.0
answer VNET_5_VIRTUAL_ADAPTER yes
answer VNET_5_VIRTUAL_ADAPTER_ADDR 192.168.105.1
answer VNET_6_HOSTONLY_NETMASK 255.255.255.0
answer VNET_6_HOSTONLY_SUBNET 192.168.106.0
answer VNET_6_VIRTUAL_ADAPTER yes
answer VNET_6_VIRTUAL_ADAPTER_ADDR 192.168.106.1
answer VNET_7_HOSTONLY_NETMASK 255.255.255.0
answer VNET_7_HOSTONLY_SUBNET 192.168.107.0
answer VNET_7_VIRTUAL_ADAPTER yes
answer VNET_7_VIRTUAL_ADAPTER_ADDR 192.168.107.1a