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After a afternoon with friends and some good German beer I realized that I missed to accept incoming forwarding traffic in my forwarding-chain. :rolleyes: I didn't saw it. I'll keep the config above. Perhaps it can help someone. I already corrected the config above. But please keep in mind...

Hey, I installed Debian 10 Buster and Proxmox 6 on my machine and decided to use nftables instead of iptables (because future and so on). Its a server with one public IP. So I use NAT and masquerade. Everything is working fine. The Host can ping the internet and its containers. Also the...

After my post I did some further tests. The problem isn't the openvpn-CT. If I use a NAT-intern machine to connect via openvpn port53 everything works like a charm. The packages are lost on the host itself by using port 53. If I redirect 1194 (ext) to port 53 (int) it works.

Hey, I'm using NAT for my VMs and anything is working fine. Even openVPN on Port 1194 or any other port works great. Just bring up a machine, forward the source- to the destination-port, finish. Now I want to run a openVPN server which is listening on port 53 udp. But it always get the following...

Do you use pfSense as VM with only one physical network interface? I'm also looking for a solution for my server with only one network interface and one public ip. Is it possible to show us your /etc/network/interfaces config and tell us which interface do you use in your pfSense? I already...

I'm not sure if I got you correct. It's true that the subnetmask has to be the same for all clients in the private network and in the public network. But masks can be different. So the public IP is in my case /22 and the private is in a range of /24. Correct, lets DHCP decide the IPs for the...

A little update I tested around with the proxmox network config and with VMs using Debian 8.0, Debian 9.5, Ubuntu 18.04. Even if I'm using the config from the wiki the VMs can't connect. If I'm pinging google or the gateway itself: always unreachable. Additionally I tested some templates...

Ok, let's say that ens3 and vmbr0 keep its default settings. ens3 has no entries. vmbr0 has the public/external IP, Gateway and Subnetmask. If I'm create a VM I'll attach vmbr0 to it. The VM only can get the public IP-Address. I couldn't add another VM to this bridge. Could I? If so I would have...

Hm, I guess that I have a wrong imagination about bridges. I'm looking for something like this (sorry, I can't post images as new user): h_ttps://i.postimg.cc/SskzwwMH/funny-network.jpg I used this guide: h_ttps://raymii.org/s/tutorials/Proxmox_VE_One_Public_IP.html That's why I'm speaking...

Thank you for your reply. I don't get it. Shouldn't my postrouting in iptables do the job, translating from vmbr2 to vmbr0 to access the internet? Additionally if I would do so like you say I'm wondering which IPs I should give the VMs under their second interface vmbr0. Also shouldn't a VM be...

Hello all together, I've a very simple problem, but I can't solve it by myself. Even with lots of researches and using the old wiki-page about network-configurations (via web archiver). However, I got one public IPv4 address and I like to use some VMs using NAT. So I installed Proxmox per ISO...