How to configure an 8-IP block range

chc-pr · Mar 28, 2018, 12:54 PM

The heading is not perhaps as descriptive as I would ideally like, but it is the closest I can come up with.

I am about to move my connection to a block of 8 fixed IP addresses. Three will be configured 1:1. Two remaining IP addresses will be kept for future service 'expansion'. I was mapping out everything I need to set up when I suddenly realised I have no idea how to configure the connection to still allow the other devices on the LAN to have internet access.

Do I have to assign on of the 8 block IPs to that role or do I use the broadcast (or maybe the ISP supplied gateway IP?) address for the general LAN access? If so how is this configured in pfSense?

TIA.

KOM · Mar 28, 2018, 1:30 PM

Do I have to assign on of the 8 block IPs to that role or do I use the broadcast (or maybe the ISP supplied gateway IP?) address for the general LAN access?

You use one of the eight IPs you were assigned.

Using me as an example. We have a /28 from our ISP:

1.2.3.146 - 1.2.3.158

The gateway to our ISP is 1.2.3.145.

If so how is this configured in pfSense?

We selected 1.2.3.155 as our WAN, so I configured pfSense WAN as 1.2.3.155. All of the other IP addresses were configured as Virtual IPs for use with NATs.

chc-pr · Mar 28, 2018, 2:31 PM

Thanks, I think I get that. Much appreciated.