Hi all, just looking for some input of the best way to migrate to a new pool for remote access DHCP address assignment. We are currently using a /24 pool, allowing us 253 IP Addresses... during the recent hurricane we hit 250 IP Addresses used, and had to start asking users to connect to our backup ASA VPN device in another country, not an ideal solution. I'd like to expand our current VPN subnet to a /23, however I do not have a free /24 subnet above (or below) our current /24 subnet.
I can certainly allocate a new /23 subnet, but I am looking for the best migration plan with minimal downtime (no downtime would be preferred). Can I just add the new pool range to the tunnel-group RAVPN general-attributes section alongside the current pool, or should I just remove the old pool, log off all existing remote access VPN users and have them log on again to start using the new pool?
We are running ASA Version 8.2(1).