SMC Networks Barricade Plus SMC7004FW User Manual page 16

traditionally shared data network). The VPN protocols
supported by the Barricade Plus are briefly described below.
• Point-to-Point Tunneling Protocol – Provides a secure tunnel
for remote client access to a PPTP security gateway. PPTP
includes provisions for call origination and flow control
required by ISPs.
• IP Security – Provides IP network-layer encryption. IPSec
can support large encryption networks (such as the
Internet) by using digital certificates for device
authentication.
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