kvm nat — LowEndSpirit

How to Become an One-Man NAT VPS Provider?

tang_cn — Sat, 20 May 2023 06:31:42 +0000

Assume you have a dedicated server with /64 IPv6, and your goal is to create some IPv6 NAT VMs. How do you do it? Below is a tutorial about how to install QEMU/KVM and create VMs on Debian via the command line.

0. Advance Notice

Special thanks to @Not_Oles !
This tutorial has been verified to work with Debian 11 on Hetzner's dedicated server.
All commands are executed as root.
In this tutorial the host's network configuration is:
Network Interface: eno1
IPv4 Address: 192.0.2.2/26
IPv4 Gateway: 192.0.2.1
IPv6 Address: 2001:db8:ace:babe::1/64
IPv6 Gateway: fe80::1
We want to create a private network 192.168.0.0/24 for VMs; we want to use 192.168.0.1 as the IPv4 gateway and 2001:db8:ace:babe::1 as the IPv6 gateway for VMs.
We want to create a VM whose IPv4 address is 192.168.0.2 and IPv6 address is 2001:db8:ace:babe:cafe::1/80.

1. Enable IP Forwarding

Open /etc/sysctl.conf. Find net.ipv4.ip_forward; uncomment this line and set the value to 1. Do the same for net.ipv6.conf.all.forwarding.

Save the file; then run sysctl -p to apply changes.

2. Install Required Packages

apt install qemu-system qemu-utils libvirt-clients libvirt-daemon-system virtinst bridge-utils

3. Modify the Network Configuration

3.1 Make a copy of the original `/etc/network/interfaces`

cp -p /etc/network/interfaces /etc/network/interfaces.backup

3.2 Open `/etc/network/interfaces` and edit

Comment out eno1's IPv6 configuration, then add the following line:

iface eno1 inet6 manual

Continue to add the following lines to create an interface br0 for KVM networking:

auto br0
iface br0 inet static
    address 192.168.0.1/24
    bridge_ports none
    bridge_stp off
    bridge_fd 0
    post-up iptables -t nat -A POSTROUTING -s '192.168.0.0/24' -o eno1 -j MASQUERADE
    post-down iptables -t nat -D POSTROUTING -s '192.168.0.0/24' -o eno1 -j MASQUERADE
iface br0 inet6 static
    address 2001:db8:ace:babe::1/64
    up ip -6 route add default via fe80::1 dev eno1

bridge ports none means br0 is not attached to any physical interface. bridge_stp off disables Spanning Tree Protocol; usually we don't need it in simple cases. bridge_fd 0 sets the forwarding delay time to 0; 0 is good in simple cases. The iptables line allows LAN nodes with private IP addresses to communicate with external public networks. The ip -6 route line specifies the IPv6 gateway.

Save the file; then run systemctl restart networking.service to apply changes.

Example: my ORIGINAL /etc/network/interfaces

WebHorizon exits KVM NAT market

yoursunny — Wed, 22 Sep 2021 19:32:27 +0000

Dear push-up specialist,

KVM NAT Poland - WAW-K1 - Add your free dedicated IPs now!

As some of you might be aware, we stopped allowing new orders for KVM based NAT services a few months ago soon after launch due to unforeseen reasons.

These KVM based NAT services are now in the process of being converted into dedicated IP services.

All services will be assigned a new dedicated IPv4 & IPv6 subnet for FREE. Service pricing will remain the same.

Please create a ticket with the Support Department to get your new dedicated IPs assigned.

In case of no response before 26.09.2021 (Sunday), a new dedicated IPv4 & IPv6 will be assigned by us automatically.

We are continually trying to improve the service experience & apologize for any inconvenience if this might cause.

Please a ticket in case of additional queries.

WebHorizon Helpdesk

I have 1GB for $15/year because it was a preorder.
After adding IPv4, it would be a $33/year value,
But I feel sorry for wasting IPv4, because my apps can run fine with just a few ports.

KVM NAT VPS - Singapore & Poland | IPv6 + NAT IPv4 + HAProxy

Abdullah — Wed, 14 Apr 2021 09:40:44 +0000

All new KVM NAT VPS

All plans include:

NVMe/SSD disk space
High-performing CPUs
KVM Virtualization
Custom ISO possible
Dedicated IPv6
NAT IPv4 - 50 static public ports + HAProxy on port 80 & 443 (use own domain)
Standard Helpdesk Support Included
1 Gbps Port Speeds
High Bandwidth Allocation - Unlimited@reduced speed after reaching the quota.

Locations available:
EU - Warsaw, Poland 🇵🇱 Network Looking glass
APAC - Singapore 🇸🇬 Network Looking Glass (((NEW NETWORK)))

KVM-NAT-256MB

1 CPU Core(s) (fair share)
256MB RAM + 128MB swap
5GB NVMe/SSD disk space
/80 IPv6 + NAT IPv4
KVM Virtualization
750GB / 250GB bandwidth@1Gbps
Order Poland / Order Singapore - USD $10/y

KVM-NAT-0.5GB

1 CPU Core(s) (fair share)
512MB RAM
5GB NVMe/SSD disk space
/80 IPv6 + NAT IPv4
KVM Virtualization
1TB / 375GB bandwidth@1Gbps
Order Poland / Order Singapore - USD $18/y

KVM-NAT-2GB

2 CPU Core(s) (fair share)
2GB RAM
25GB NVMe/SSD disk space
/80 IPv6 + NAT IPv4
KVM Virtualization
Windows Supported
4TB / 1TB bandwidth@1Gbps
Order Poland / Order Singapore - USD $5.4/m

===Please turn off your proxy/VPN while placing order===

Feel free to ask any questions you might have