Proxmox has no internet connection, BUT OPNSense and Docker and Portainer does !


New Member
Aug 24, 2023
HI All Im Very new to all this, so ill describe it best I can, if you need any information or screenshots plz let me know ill provide as fast as I can :)

SO I Installed PROXMOX VIA Usb install undated it as normal no problem, then OPNSense undated as normal, this is when I lost connection to the internet for ProxMOX only.
since then ive installed PORTAINER and DOCKER with no trouble at all. everything has internet axcess and can me updated BUT PROXMOX.
Does Anyone have an area for me to check or Idears what is going on ?
thank you in Advance
First you should show us your network setting...
cat /etc/network/interfaces
cat /etc/hosts
cat /etc/resolv.conf
ip addr
...and tell us what IP your gateway is. Should the PVE node use the OPNsense as a gateway or some other router?
Which bridges is OPNsense connected to or do you passthough a NIC? Any vlans in use?
there is all requested network settings ill now try an answer the rest best I can mate :)
you should not configure systems with multiple NICs on the same subnet. Its a special configuration that requires expert understanding of Linux routing. There are very few cases where this type of setup is useful. Incorrect configurations are common and lead to strange results.

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox -
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Im connecting using PPPOE directly to the Router which is running Proxmox and Opnsense is runnin inside Proxmox as a VM
the Router is then connected to a switch with Wifi that connects to all devices in the house.
the Internal Gateway is

Like bbgeek17 already said, first you should get rid of one of the IPs. So either use on vmbr0 or on vmbr1 but not both. And don't set a gateway twice per host.
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too bad no further follow up on this subject as i have about the same issue which i cannot seem to resolve


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