这里我只记下步骤:
1. in creating 2 VMs on virtualbox, 在“networking” diagram, select "internal networking", the name can use default value "intnet"
2. on virtualbox机器上,进入 C:\Program Files\Oracle\VirtualBox\, run
C:\Program Files\Oracle\VirtualBox>VBoxManage.exe dhcpserver add --netname intne
t --ip 192.168.1.1 --netmask 255.255.255.0 --lowerip 192.168.1.1 --upperip 192.1
68.1.100 --enable
it will set up a DHCP servers.
3. start the 2 linux VMs, you can see ips 192.168.1.1 and 192.168.1.2 are assigned to the 2 linux VMs.