How to add a second IP to a guest?

kokoticek

Active Member
Jun 7, 2010
121
3
38
Hello there,

I've been running a stream radio station, my clans webpage, teamspeak and some steam source game servers for about 4 years now without major changes aside debian upgrades.

I got delivered my new hp proliant server and want to setup it at home before delivering to the data center.

I'm planning to virtualize the server so I have the webservices, mailservices, steam and streamservices and gameservers in different vm's. There should be installed a windows server for hosting dayz which should get a dedicated IP. But... my network knowledge wasn't best back in my school day's and haven't changed since I have had only 1 IP with a static interface.

So I'm asking if someone would be so kind as to help me?

Let's say my first IP is: 192.168.178.97 255.255.255.192
Gateway would be 192.168.178.65

Then I've a second IP: 192.168.20.30 255.255.255.255

My interface is this by now:
network interface settings
auto lo
iface lo inet loopback


auto eth0
iface eth0 inet manual


auto vmbr0
iface vmbr0 inet static
address 85.25.243.97
netmask 255.255.255.192
gateway 85.25.243.65
bridge_ports eth0
bridge_stp off
bridge_fd 0


My question is how should I configure the interface for the second IP and how do I give it to the virtual windows? Any help would be appreciated.


Edit: Also I've only 1 MAC available, so the traffic should be routed through iptables. The proxmox tutorial for this is too difficult to understand for me. It say's interface should contain this:

auto vmbr0iface vmbr0 inet static address 10.10.10.1 netmask 255.255.255.0 bridge_ports none bridge_stp off bridge_fd 0 post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -t nat -A POSTROUTING -s '10.10.10.0/24' -o eth0 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '10.10.10.0/24' -o eth0 -j MASQUERADE

But where's the real IP adress gone? And why is routing done via interface rather than iptables?
 
Last edited:

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!