Can't access internet

[ed9]

Good day to all,

The problem is that I somehow can't access internet from VM (Ubuntu 20.04 LTS). I have dedicated server (which I rent from provider) and external IP block /24. Proxmox network: Mlnx NIC (ens1) and vmbr0. Can ping 8.8.8.8, network is accessible from shell (Host). Configured manually VM's network, so for now I can ping my vmbr0, but can not ping gateway and 8.8.8.8; Where can be main issue? I'm not sure, but have a feeling like something is blocking traffic from VM to gateway. VM firewall is disabled, Hosts firewall - default. Can a misconfiguration of VLAN be the cause of the issue? (Haven't already configured any VLAN's, but know that provider use for some reasons)

P.S. Network was configured in Ubuntu with GUI.

 

[oguz]

hi,

* how does /etc/network/interfaces look on your PVE host?

* how is the VM network configured? is it using static IP or dhcp?

I'm not sure, but have a feeling like something is blocking traffic from VM to gateway.

* ip r will tell you if you have the necessary networking route

 

[ed9]

Hi @oguz, thank you for the reply!

/etc/network/interfaces

(IP address here changed)

auto lo
iface lo inet loopback

auto eno1np0
iface eno1np0 inet manual

iface eno2np1 inet manual

iface enxb03af2b6059f inet manual

auto vmbr0
iface vmbr0 inet static
        address 98.76.54.32/24
        gateway 98.76.54.1
        bridge-ports eno1np0
        bridge-stp off
        bridge-fd 0

VM is using static IP address (IPv4 Method: Manual):

Address: 98.76.54.40
Netmask: 255.255.255.0
Gateway: 98.76.54.1


ip r :

default via 98.76.54.1 dev ens18 proto static metric 20100
169.254.0.0/16 dev ens18 scope link metric 1000 (IP not changed)
98.76.54.0/24 dev ens18 proto kernel scope link src 98.76.54.40 metric 100

 

[oguz]

network conf on host looks normal, can you also post ip a output from both host and VM?

* is this the only VM with connectivity issue?

* can you also try with an ubuntu container using the network same settings?