Basic networking please help

Applications IP Networking
1

I am running Ubuntu Desktop and Ubuntu Server editions on two separate VMs.

For the desktop I have set network adapters:
Adapter 1: internal network called intnet
Adapter 2: NAT

Server:
Adapter 1: internal network called intnet

Now I'm suppose to set ip addresses which I'm pretty sure you do by editing the /etc/network/interfaces file but I'm new to this I don't really get it.

Ubuntu Desktop:
static IP 192.168.10.100 for the internal network adapter
netmask 255.255.255.0
dhcp IP for the NAT adapter

Ubuntu Server:
static IP 192.168.10.101
netmask 255.255.255.0

^ This is what I need to have set.. how do I do this? I've tried a few things and reset the network and it didn't work. Please can anyone help?

2

has this been resolved?

3

No.. I'm still looking for an answer.

auto eth0
iface eth0 inet static
address 192.168.10.100
netmask 255.255.255.0
gateway 192.168.10.254

I don't know if this is right for the first adapter and what about the NAT adapter?

4

What VM are you using? Usually, both VMware and VirtualBox have an DHCP server running for NAT networks. Assuming the internal network is eth0 and the NAT network is eth1:

auto lo eth0 eth1
iface lo inet loopback

iface eth0 inet static
    address 192.168.10.100
    netmask 255.255.255.0
    # No gateway, since internal networks usually have absolutely no connection
    # to the outside world

iface eth1 inet dhcp

Once that's done, restart the network by running invoke-rc.d networking restart from the command line.

1 Like
5

Thanks, I am using VirtualBox. The NAT network isn't named though is it okay to say it's

iface eth1 inet dhcp

would I have to do something like

iface eth1 nat dhcp

instead? Sorry if this is a stupid question.

6

The third word isn't in any way related to whatever name you've given to the internal network. Actually, the VM usually doesn't even know it's a purely virtual network. Instead it defines the protocol used. inet is for IPv4, inet6 for IPv6, ...