We've built a Remote Access VPN on our ASA5520 here and have run into something odd. I think so anyway.
Only one user can VPN in and actually access our network at a time. Any other users can log in but are essentially isolated. They can't access any equipment on our network.
I'm using a IP pool for VPN users of 10.2.10.0/24... the only pingable address on that network is the first user who logged in. No one else is pingable from each other, or from any device on our network.
Has anyone seen this before?