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DiverseAndRemote.com
Asked: 2012-10-20 18:01:28 +0800 CST

How do I get my Proxmox VM to access the internet without a public IP address

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I would like to create a proxmox vm and have that vm be able to ping/access external websites without having to assign a public ip to it. How do I do this?

The VM is running centos 6

linux

2 Answers

  1. Best Answer

    You have to use NAT (network address translation/masquerading) to provide private IPv4 addresses for your virtual machines. The Proxmox wiki has instructions on how to set this up.

    Or you can just go get IPv6; your ISP will probably be more than happy to give it to you (if they have it yet).

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  2. I followed the advice of micael hampton and was able to fix it by:

    1: copy /etc/network/interfaces' to/etc/network/interfaces.new'

    2: add the following code to my local ip interface at vmbr0:1

    post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up   iptables -t nat -A POSTROUTING -s '192.168.100.0/24' -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s '192.168.100.0/24' -o vmbr0
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