Hi! I have some trouble routing traffic to/from my VM. I know, this - or similiar problems - are discussed all over the net but I checked out a lot of tutorials and forum posts. Unfortunately, none of the configurations discussed are working for me - or I didn't get it. :/ Goal: I want to make all of my created VMs/LXCs accessible from the internet. Every VM/LXC should have its own IP. These IPs are in another net than the main IP of the server. Host is running Debian 9.1. Host has 62.xxx.xxx.99 Netmask 255.255.255.0 Gateway 62.xxx.xxx.1 Additional IPs are from 82.xxx.xxx.10 to 82.xxx.xxx.20 Netmask 255.255.254.0 Gateway 82.xxx.yyy.1 This is my current config of /etc/network/interfaces (host): Code: auto lo iface lo inet loopback iface eno1 inet manual auto eno2 iface eno2 inet static address 62.xxx.xxx.99 netmask 255.255.255.0 gateway 62.xxx.xxx.1 post-up echo 1 > /proc/sys/net/ipv4/conf/eno2/proxy_arp post-up echo 1 > /proc/sys/net/ipv4/ip_forward auto vmbr0 iface vmbr0 inet static address 192.168.0.1 netmask 255.255.255.0 bridge_ports none bridge_stp off bridge_fd 0 (taken from https://forum.proxmox.com/threads/i...cannot-access-the-internet.36061/#post-176699) Here, the contetnt of "interfaces" at my test VM (Ubuntu 16.04): Code: auto lo iface lo inet loopback auto ens18 iface ens18 inet static address 82.xxx.xxx.10 netmask 255.255.254.0 gateway 192.168.0.1 dns-nameservers 4.4.4.4 8.8.8.8 Result: VM can't be reached from the outside nor is the gateway (or any other address) reachable by the VM. Can someone push me in the right direction, pls? Thanks a lot.
Got it! This config isn't possible at all. You can't route additional IPs which weren't assigned by your provider! (I guess, I do need some reading about networking stuff ) Whatsoever, now I've got my additional IP by my provider. But the same question came up: How can I add the additional IP to my VM? I didn't get it. What I've done so far: /etc/network/interfaces (HOST): Code: auto lo iface lo inet loopback auto eno1 iface eno1 inet manual auto eno2 iface eno2 inet static address 62.xxx.xxx.99 # <--- the servers main IP netmask 255.255.255.255 gateway 62.xxx.xxx.1 # <--- the gateway IP pointopoint 62.xxx.xxx.1 # <--- again, the gateway IP auto br0 iface br0 inet static address 62.xxx.xxx.99 # <--- the server's main IP, iface br0 is routing all the traffic to the outside world netmask 255.255.255.255 bridge_stp off bridge_ports none bridge_fd 0 bridge_maxwait 0 up route add -host 188.xxx.xxx.xxx dev br0 # <--- add and route additional IP to iface br0 /etc/network/interfaces (GUEST): Code: auto ens18 iface ens18 inet static address 188.xxx.xxx.xx # <--- the additional IP netmask 255.255.255.255 gateway 62.xxx.xxx.99 # <--- the IP of iface br0 in host config pointopoint 62.xxx.xxx.99 # <--- the IP of iface br0 in host config The VM doesn't have any connection to the outside world. What do I miss?
