VMware workstation 6.5 study notes-Virtual Networking

VMware workstation 6.5 study notes

―Virtual Networking

1.Componets of Virtual Networking

Virtual switch/DHCP Server/Virtual Ethernet Adapter(VM and HOST)/NAT device/virtual bridge

VMware workstation defines 10 virtual Ethernet switches on windows(255 on linux)

2.networking configuration

1).Bridged Networking:

Setup bridged networking procedure:

Setp1:in vmware workstation, choose network tab à network connection , Bridged:connected directly to physical network (select “Replicate physical network connection state” if virtual machine run in laptop or other mobile device);

Step 2:setup ip address on virtual machine,we can assign ip parameters statically or obtain ip parameters via dhcp;

 

2).NAT:

NAT configures a virtual machines to share IP and MAC addresses of the host machine;

On the NAT networking , components contained:

A .a virtual network switch(default is VMnet8,we also can define other VMnet as NAT networking?>)

B .a DHCP server(the default IP is 192.168.88.254/24,which is 192.168.66.254/24in host-only networking,dhcp parameters:ip―192.168.128-253/gateway-192.168.88.2)

C .a NAT device(which translates the address of virtual machines to the address of the host,requires minimal configuration on host an virtual machines,its outside address is host physical adapter’s IP address,its inside address is 192.168.88.2);

D .a virtual network adapter in virtual machine(the IP address assigned statically is <net>.3-127/24 or obtained dynamically via dhcp server is <net>.128-253/24)

E .a virtual network adapter in host machine(the IP address is <net>.1/24 by default,which allows host machine and virtual machine to commnunicate with each other for some purpose such as file sharing ,the nat device nerver forwards traffic from the host virtual adapter)

 

NAT Networking illustration:

 

3).Host-only networking:

 

 

4) .DHCP conventions for Assigning IP address

<net>.1---Host machine virtual adapter

<net>.2---NAT device “inside adapter” on NAT network;

<net>.3-127---static address for virtual machines on NAT network

<net>.2-127---static address for virtual machines on Host-Only network;

<net>.128-253---DHCP-assigned address for virtual machines;

<net>.254---DHCP Server;

<net>.255---broadcasting;

3.Example 1: Virtual networking with TWO firewalls