Cannot ping from Interfaces


New Member
Sep 28, 2023
I have a simple setup:

My PC:
Proxmox: (enp11s0)
pfSense (VM under Proxmox): (enp5s0)

From my PC I can access pfSense just fine, however, NOT proxmox.

I can't even ping Proxmox from my PC, nor from pfSense.

auto lo
iface lo inet loopback

iface enp5s0 inet manual

iface enp6s0 inet manual

iface enp11s0 inet manual

iface enp7s0 inet manual

iface enp1s0f0 inet manual

iface enp12s0 inet manual

iface enp8s0 inet manual

iface enp1s0f1 inet manual

auto vmbr0
iface vmbr0 inet static
        bridge-ports enp11s0
        bridge-stp off
        bridge-fd 0
        bridge-vlan-aware yes
        bridge-vids 2-4094

ip a:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
3: enp11s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master vmbr0 state UP group default qlen 1000
    link/ether 38:d5:47:02:76:ef brd ff:ff:ff:ff:ff:ff
6: enp12s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 38:d5:47:02:76:f0 brd ff:ff:ff:ff:ff:ff
10: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 38:d5:47:02:76:ef brd ff:ff:ff:ff:ff:ff
    inet scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::3ad5:47ff:fe02:76ef/64 scope link
       valid_lft forever preferred_lft forever

I'm coming from ESXi where you disable secure boot, and put the main nic on VLAN 4095, and that's all.

Thanks for any help!
Last edited:
Doh. For some reason proxmox can't see: enp5s0, 6s0, 7s0 and 8s0, nor enp1s0f0 and enp1s0f1.

I have them working perfectly on pfSense, but not on proxmox.

How can I add them on Proxmox (ip a) ?


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