How to assign IPs from different pools (sqlippool) depending on which NAS the request comes from

[aquilinux]

Hi all, I need to assign IPs from different subnets (pools) depending on
which NAS the request comes from.
Right now i'm using sqlippool with only one pool (main_pool) populated with
one subnet, 172.20.174.0/23.
I need to split this subnet in 2 (ie. 172.20.174.0/24 and 172.20.175.0/24)
assigning different pool names (ie. pool_A for 172.20.174.0/24 and pool_B
for 172.20.175.0/24) in radippool.

What i want to do is:
- if a user comes from NAS-A then he should be assigned an IP from pool_A
- if a user comes from NAS-B then he should be assigned an IP from pool_B

How can this be done?

Thanks for help.
aqx

-- 
"Madness, like small fish, runs in hosts, in vast numbers of instances."

Nessuno mi pettina bene come il vento.