Virtual IP

[SenseX]

Hi,

I'd like to group multiple IP addresses into a virtual IP, but I can't find where to do it in OPNsense. 
I have two Pi-holes and want to group them into one virtual IP.

[Patrick M. Hausen]

A virtual IP is really something different, namely an additional IP address on an OPNsense interface.

But if I read you correctly you want "something" for firewall rules containing two or more addresses? That's Firewall > Aliases.

[cookiemonster]

I suspect the OP wants to use something akin to the F5s virtual ips where you have in the UI a way to pretty much do a load balancer setup. Say you have a vip of 172.26.27.1 that "points" to both 192.168.10.1 and 192.168.10.2 and chose your algorithm like round-robin.
Essentially what we can do with a reverse proxy in OPN but I don't know what the flow would be to setting up the vip. Perhaps creating a VIP in the UI first with a type "IP Alias" but that gives only a vip assigned to an interface. Or maybe I totally misunderstand the question :)

[nero355]

I have two Pi-holes and want to group them into one virtual IP.

You can do that by running VRRP for your Pi-Hole DNS Servers :)

Take a look at some of the topics @ https://discourse.pi-hole.net/ like this one for example : https://discourse.pi-hole.net/t/clustered-pihole-ive-done-it/12716
But keep in mind that was for Pi-Hole v5.x.x and not Pi-Hole v6.x.x so you might want to find more recent solutions for some parts of the setup !!

[Seimus]

https://github.com/SeimusS/Pihole-HA

Regards,
S.

[nero355]

https://github.com/SeimusS/Pihole-HA

I always feel like this :

Subnet:    192.168.1.0/24
PRIMARY:   192.168.1.1/24
SECONDARY: 192.168.1.2/24
VIP:       192.168.1.3/24

Should be :

Subnet:    192.168.1.0/24
PRIMARY:   192.168.1.2/24
SECONDARY: 192.168.1.3/24
VIP:       192.168.1.1/24

But maybe I am just weird :)

Thanks for posting exactly what I was talking about though! Nicely done! ;)

[Seimus]

Not at all. You can change the IPs or set the VIP as you like.
In this example its like this just for simpler explanation and allocation of IPs.


Regards,
S.