Billion Electric Company BiGuard 30 - Manual (Page 112)

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Limit Maximum sessions per IP to (with reject and drop options): Just
like the previous option, this option expands on what to do with additional sessions
above the maximum limit. You can either reject the additional sessions for a period
of time or just drop all packets from those sessions for a period of time.
4.4.6 VPN
VPN is a way to establish secured communication tunnels to an organization’s
network via the Internet.
You can find two items under the VPN section: IPSec and PPTP.
4.4.6.1 IPSec
IPSec is a set of protocols that enable Virtual Private Networks (VPN).
.
You can find two items under the IPSec section: IPSec Wizard and IPSec Policy.
4.4.6.1.1 IPSec Wizard