Create SDN private Network

[weyon668]

Hello,
I have running a proxmox server 8.2 on a hostet machine with 1 IP address. Now I want to create a virtual net with private Ips for my vms. I did this by using this infos:

https://pve.proxmox.com/wiki/Setup_Simple_Zone_With_SNAT_and_DHCP
https://pve.proxmox.com/pve-docs/chapter-pvesdn.html

The network is working, I get a DHCP address, but I cannot ping to any outside server (google.de or 8.8.8.8). Can anyone help me why why this is not working? Thank you.

 

[news]

You must set SNAT on, please show all setup steps.

 

[weyon668]

My steps are exaclty the same from the websites I posted (and snat is on), with the same names an IPs. And curios, when I tried this at home in vmware, it works perfectly. Only on my dedicated server it won´t work.

 

[news]

Show your setup, vmbrX network and the vnetY.
We said "prosa" don't show all details.

 

[news]

I use on many systems The SDN Setup and on some IP/ Port. I change the iptables, so that i can reach from outer the inner service.

 

[weyon668]

As you wish ;-)

auto lo
iface lo inet loopback

iface lo inet6 loopback

iface enp6s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 144.xxx.xxx.xxx/27
gateway 144.xxx.xxx.xxx
bridge-ports enp6s0
bridge-stp off
bridge-fd 0

source /etc/network/interfaces.d/*

 

[weyon668]

Firewall same like here:
https://pve.proxmox.com/wiki/Setup_Simple_Zone_With_SNAT_and_DHCP