Can't get to the IP, can't ping google from console

howarddavidp

New Member
Oct 16, 2025
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Hello,

New here, new to Proxmox, experienced in Vmware and cloud platforms, all of them.
'
The install works, I guess I should mention my irregular setup:

Portwell CAR-3040 server (formerly a Sophos SG210) 4th generation Intel Core i7/i5/i3 (Haswell) CPU, Intel H81/B85 chipset with 16GB RAM and a Samsung 870 500GB SSD.

The Portwell is a 1U network type server with 6 onboard Intel Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03) ports.

These ports are viewed as:
enp2s0
enp3s0
enp4s0
enp5s0
enp6s0
enp7s0

Note: I had a 4 port 10GBe card I have since removed to simplify)

/etc/network/interfaces:

auto lo
iface lo inet loopback

iface enp6s0 inet manual

auto vmbr0
iface vmbr0 inet static
address 192.168.100.2/24
gateway 192.168.100.1
bridge-ports enp6s0
bridge-stp off
bridge-fd 0

iface enp6s0 inet manual
iface enp7s0 inet manual
iface enp2s0 inet manual
iface enp3s0 inet manual
iface enp4s0 inet manual
iface enp5s0 inet manual


References:
https://portwell.com/pdf/ca/CAR-3040_old.pdf

So I can get the interface to come up and show an IP, but I cannot ping Google, I cannot ping the host from a laptop on the same network, and I cannot ping the laptop from the host console.

Thus far I tried the PROMISC mode for the VMBR0, didn't work.

Not sure what I am doing wrong, and I really don't want to have to pay before I can confirm this will even work?

My end result:
2 VM's, one will be OpenWRT to connect to Speedify, and the other will be the Ubiquiti Controller for my Wi-Fi 7 mesh, if this ever gets going.

I have used Linux since 1991, though lately I have been more into policy writing and audit vs hands on, but I can still use the VI editor with the best of them! For hardware, my grad level EE from state school, I did board level design after college and I can solder, including surface level, with the best of them too! Some skills never die I guess?

So any help is appreciated, I am open to trying anything, this is a lab setup to test the viability of Proxmox vs ESXi. Little sad I could not get this going on the network and I had to eat crow and come here for help, but what else could I do? Yes, I have RTMF several times over, nothing I tried worked.

Thanks,

David P. Howard
 

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Welcome to the Forum, David!
We'll try to help you :)
Please post (inside the CODE tags) the results of the commands:
dmesg | grep -i enp
ip a
ip route

And IP details from your laptop.
Also, to start from a simple setup: shutdown any VMs in the host, if there are any.
In case you have enabled the Proxmox firewall, disable it during the tests.
Are there any VLANs in your network?
Is there DHCP? If yes, what is the IP addresses range of DHCP?
 
Last edited:
My Netgear 8-port switch was bad—or at least had a bad port.

I figured this out by wiping Proxmox VE and installing Finnix, then trying to load OpenWRT. Same problem, completely different OS, so that told me it was a hardware issue.
First, I swapped cables—no luck. Then I plugged into a different switch, and suddenly I could ping Google.

I went back to Proxmox, and everything worked as intended. So, my budget switch was either failing or already bad. I’ll toss it and buy a better one.


Consulting Help Wanted


On a different note, I really need help—not so much with Proxmox itself, but with the entire project design and implementation.

I’m willing to offer a fee (around $500) for someone who can jump in at the design phase and help get my solution up and running. I can pay via PayPal, Venmo, etc., and I’m fine with providing remote access to whatever is needed to get this going.


Project Overview

I’m working with a Portwell CAR-3040 system and want to run two VMs on it:
  1. OpenWRT
  2. Ubiquiti Network Manager (smaller VM)
Connectivity
  • Two ISPs: Comcast and Verizon, both delivering Ethernet service (2 Gbps / 1 Gbps) from their respective Modem and ONT.
  • Ports dedicated to sharing my Internet connection with my neighbor, who has their own router.
  • VLANs to separate:
    • Wired laptops for work
    • Wired TVs and streaming devices, XBOX ONE and PS5
    • IoT (wireless Philips smart bulbs)
    • A wireless network for 12 security cameras
    • A guest Wi-Fi
    • My personal devices (2 phones, 2 tablets) that manage the bulbs and security system
The neighbors should be isolated to Internet-only access, and I plan to deploy Ubiquiti APs for a 4-AP wireless mesh. My neighbors manage their own, separate Wi-Fi so I don't need to worry about them.

Simple, right?


Current and Planned Hardware

  • Purchased: Portwell CAR-3040
  • Next Purchase: Ubiquiti USW-Pro-Max-PoE 180W (16-port model #810084694558)
    – my second switch appears to be failing
  • Current Wi-Fi: Four ASUS routers in AP mode (Wi-Fi 5) — will transition later to Ubiquiti Wi-Fi 7 APs

Future Goals


Eventually, I’d like to integrate Speedily or a similar cloud VPN endpoint to:
  • Bond both ISP connections
  • Obtain a static public IP
  • Enable adaptive load balancing and failover

That’s a separate phase, but it’s on the roadmap.

Should I post this here or elsewhere?
 
Glad you found the culprit quickly :)

Should I post this here or elsewhere?
I've checked a list of available subforums ( https://forum.proxmox.com ).

I can see that your project contains also a substantial network topic. So maybe "Proxmox VE: Networking and Firewall" subforum ( https://forum.proxmox.com/forums/proxmox-ve-networking-and-firewall.17/ ) is more on subject for your project.
I'm quite new on the Forum, so I'm not sure, but I would start there.

If you don't get a reply, you can ask on the current subforum ("Proxmox VE: Installation and configuration"), which is more frequently attended ;-).

Good luck!