Virtual pfSense on Proxmox with OVH failover IP

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• Head over to the Control Panel
• Click the IP tab, just under the hostname
• use the Order IPs button on the left
  • follow this and wait for the email that the IP is setup
• on your new IP, click the cog and click make virtual MAC
  • make a note of the MAC, you will need that later
• in Proxmox
  • make a new linux bridge, dont attach to a NIC
  • make a new VM for pfSense, dont boot it yet
  • on the hardward page of the vm
  • edit the NIC, set the MAC to the virtual MAC (you just made it)
  • add a new NIC, use the new Linux bridge
  • now boot it
  • once its up and running
  • boot a new vm from an ubuntu ISO, live boot it, dont install!
  • once in the ubuntu vm, open firefox and goto 192.168.1.1
  • login to pfsense, admin and pfsense
    • if you change the LAN IP, you ned to run:
    • sudo dhclient -r
    • sudo dhclient
  • goto system -> routing
  • add a new gateway
    • add a name
    • add the IP (this will be the 3 octects of proxmox IP with 254 on the end)
    • show Advanced
    • at the very bottom tick Use non-local gateway
    • save it
  • goto interfaces -> WAN
  • set the IP to the failover IP /32
  • set the IPv4 Upstream gateway to your new gateway
  • save it
  • now you need to get your vm to add a route
    • sudo dhclient -r
    • sudo dhclient
  • see if you can see it now?

Published: 26 Nov 2021 by Matt Horwood