add single public ip to vm

A

achirkov

Active Member
Nov 26, 2020
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Hi! I have 2 public ip on hetzner. One for host and one for container.
I have vmbr0 where hosted vm behind NAT host ip. And i create vmbr1 for second public ip.
But i not have ping from container to host and host cant ping container.
How i can add ip to CT?
In container configuration:
ip: 156.XXX.XXX.109/26
gateway: 156.XXX.XXX.65
sudo cat /etc/network/interfaces
Code: 
source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback

iface lo inet6 loopback

auto enp5s0
iface enp5s0 inet static
    address 156.XXX.XXX.106/26
    gateway 156.XXX.XXX.65
    up route add -net 156.XXX.XXX.64 netmask 255.255.255.192 gw 156.XXX.XXX.65 dev enp5s0
    post-up echo 1 > /proc/sys/net/ipv4/ip_forward
    post-up echo 1 > /proc/sys/net/ipv4/conf/enp5s0/proxy_arp

auto vmbr0
iface vmbr0 inet static
    address 10.16.1.1/24
    bridge-ports none
    bridge-stp off
    bridge-fd 0
#Local br

auto vmbr1
iface vmbr1 inet static
    bridge-ports none
    bridge-stp off
    bridge-fd 0
 
Last edited:
Hi,

is the container can ping google or 8.8.8.8? please post the container config as well pct config {CTID}
 
Moayad said:
Hi,

is the container can ping google or 8.8.8.8? please post the container config as well pct config {CTID}
Click to expand...
Container cant ping to 8.8.8.8.

Config:
Code: 
arch: amd64
cores: 1
hostname: test-ip
memory: 1024
net0: name=eth0,bridge=vmbr1,gw=157.XXX.XXX.65,hwaddr=00:50:56:00:81:86,ip=157.XXX.XXX.109/26,type=veth
ostype: ubuntu
rootfs: pve-twin:vm-108-disk-0,size=8G
swap: 512
unprivileged: 1
 
Hi,

You should add an address to vmbr1 bridge

Code: 
auto vmbr1
iface vmbr1 inet static
    bridge-ports none
    bridge-stp off
    bridge-fd 0
 
Moayad said:
Hi,

You should add an address to vmbr1 bridge

Code: 
auto vmbr1
iface vmbr1 inet static
    bridge-ports none
    bridge-stp off
    bridge-fd 0
Click to expand...
After add ip to vmbr1 nothing changes.
But if i add route in proxmox and no set ip to vmbr1 i can ping proxmox host and host can ping container. But no ping to 8.8.8.8. Maybe need add something to iptables?
sudo ip route add 157.XXX.XXX.109/32 dev vmbr1
 
Check the output of iptables -t -nat -L and post please. On my new install iptables nat commands on vmbr1 do not fail but they don't register in iptables either. It might be what's happening to you too.
 
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