Score:0

What subnet mask to use for a virtual IP in pfSense

in flag

I have a subnet 192.168.0.0/24.

I want to create a new virtual IP address (VIP) in pfSense at 192.168.0.2.

What difference does it make what subnet mask I use for the VIP?

Should I set the VIP to 192.168.0.2/24 so it matches my subnet or to 192.168.0.2/32 since the VIP is just a single IP address?

Score:1
ru flag

The subnet mask must match across all subnet devices - it determines which destination addresses are 'on link', all others requiring a gateway to reach.

Most likely you cannot configure a /32 subnet mask as it would mean the host is all alone and can't even reach a gateway to go elsewhere.

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