[SOLVED] VM with Ubuntu 22.04.3 can't update

[dussyaka]

Hi.

I've got my proxmox server with 2 VM: ubuntu 20 and ubuntu 22. They are all in the same NAT vmbr1. Ubuntu 20 have network connection and i can update system sudo apt update. But ubuntu 22 can't connect to ubuntu servers and download data. What could be the problem?

P.S. I can connect to ubuntu 22 server via ssh in NAT and via ssh from my PC in another city!

Info.

Debian, PROXMOX
cat /etc/network/interfaces

auto lo
iface lo inet loopback

auto enp5s0
iface enp5s0 inet manual
#Ethernet

auto vmbr0
iface vmbr0 inet static
        address my_ip_address/26
        gateway my_gateway
        bridge-ports enp5s0
        bridge-stp off
        bridge-fd 0
#External Bridge

auto vmbr1
iface vmbr1 inet static
        address 192.168.1.1/24
        bridge-ports none
        bridge-stp off
        bridge-fd 0
#NAT

        post-up   echo 1 > /proc/sys/net/ipv4/ip_forward
        post-up   iptables -t nat -A POSTROUTING -s '192.168.1.0/24' -o vmbr0 -j MASQUERADE
        post-down iptables -t nat -D POSTROUTING -s '192.168.1.0/24' -o vmbr0 -j MASQUERADE

Ubuntu 20
sudo cat /etc/netplan/00-installer-config.yaml

network:
  ethernets:
    ens18:
      addresses:
      - 192.168.1.2/24
      gateway4: 192.168.1.1
      nameservers:
        addresses:
        - 8.8.8.8
      optional: true
  version: 2
  renderer: networkd

Ubuntu 22
sudo cat /etc/netplan/00-default.yaml

network:
  ethernets:
    ens18:
      addresses:
      - 192.168.1.33/24
      nameservers:
        addresses:
        - 8.8.8.8
        search:
        - 8.8.8.8
      routes:
      - to: default
        via: 192.168.1.1
      optional: true #
  version: 2
  renderer: networkd #

 

[dussyaka]

I forgot disable firewall in proxmox.. It's working now.