Replacing Static IP routing on BT HUB with opnsense

[simesd]

I have just swapped out the BT business smart hub for opnsense. All working fine BUT now I need to implement the static IP allocation for our servers.

The static allocation from BT is as follows:


Your five static IP addresses range from xxx.xxx.xxx.129 to xxx.xxx.xxx.133.

Network address: xxx.xxx.xxx.128
Hub address: xxx.xxx.xxx.134
Subnet mask: 255.255.255.248


I also noted that the BThub had a static route to the lan bridge (br0) subnet :

xxx.xxx.xxx.128-255.255.255.248-0.0.0.0

I have tried Virtual IPs (IP Alias) and adding a route to null, but can't seem to get it to work.

Maybe I am going about this the wrong way? I am new to opnsense Any help would be appreciated.

[cookiemonster]

Bit by bit.
Static ips:
Services > DHCPv4 > <YourInterface>
Here you set your dhcp range for that interface. Your ip reservations need to be outside this range.
Once you know they are. At the second half section of the page you have a +at the top-right. You add your static ips there.

p.s I don't know what the Network address and Hub address are in your context of a BT business smart hub device.

Bridge:
I imagine the smart hub is a device with around 4 LAN ports and one for WAN? Typically they have those 4 ports bridged so any device you plug in are in the same LAN. You can do this with OPN https://docs.opnsense.org/manual/other-interfaces.html#bridge
https://docs.opnsense.org/manual/how-tos/lan_bridge.html