VLANs	ID	IP Ranges	Gateway	Purpose
OSAS-Public	190	8.43.85.193-222 8.43.85.225-238	8.43.85.254	direct Internet access
OSAS-Provisioning	430	172.24.30.1-249	172.24.30.254	provisioning of new hosts
OSAS-Management	431	172.24.31.1-249	172.24.31.254	equipments administration
OSAS-Internal	432	172.24.32.1-249	172.24.32.254	machines behind a reverse proxy (security, saves IPs…)