Change 191824 had a related patch set uploaded (by Dzahn):
add internal LVS service IP for zotero

https://gerrit.wikimedia.org/r/191824

Patch-For-Review

so we really just need the internal one, right?

not like the shared public one like here:

https://gerrit.wikimedia.org/r/#/c/188537/2/templates/wikimedia.org

Yeah Daniel, internal one. Just fill in the gap before starting to use .32 and above as per @fgiunchedi's comment

Yep, amended. using .16 now. Also uploaded changes for adding a skeleton role class and LVS config. Linked to the "puppetize zotero" bug.

fwiw, i asked bblack and he checked and said we can use the entire /24 range of IPs here even though it's not a real /24 network as such but all indidivual /32 but we can use up to .254.

Change 191824 merged by Dzahn:
add internal LVS service IP for zotero

https://gerrit.wikimedia.org/r/191824

In T89870#1055205, @Dzahn wrote:

fwiw, i asked bblack and he checked and said we can use the entire /24 range of IPs here even though it's not a real /24 network as such but all indidivual /32 but we can use up to .254.

Yes, of course we can. It is not a technical limitation but an effort to avoid fragmentation of IPs for as long as we can. More like a "keep it clean" policy with the added benefit of allowing an easy split of that network in smaller ones if needed (which we may very well not need, but you never know)