Which types of point-to-point VPN does the device support

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The device supports GRE, IPSec, VLL, L2TP, and SSL VPN.

Starting from V200R002C00, the device supports L2TP and SSL VPN. Starting from V200R003C00, the device supports VLL.

GRE tunnels can encapsulate unicast and multicast packets.

IPSec tunnels can only encapsulate and encrypt unicast packets. To encrypt multicast packets, use GRE over IPSec.

As a point-to-point Layer 2 tunneling technology based on MPLS, VLL allows data packets to traverse networks using different media.

L2TP tunnels transmit PPP packets over the public network, and support user authentication and remote access, but have low security. You can use L2TP over IPSec to improve security.

Based on the HTTPS protocol, SSL VPN uses the data encryption, user identity authentication, and message integrity check mechanisms of the SSL protocol to ensure secure remote access to enterprise intranets.

Other related questions:
Does an AR support point-to-point IPSec
AR routers support point-to-point IPSec.

How do I initiate a point-to-point conference on the DP300?
On the Call screen of the DP300, you can place a call to a remote site to set up a point-to-point conference. For details, see 6.1 Initiating a Point-to-Point Conference.

Are chair control rights available in point-to-point conference?
Point-to-point conferences have no chair site. You cannot set conference control functions for the chair site.

Whether the USG5000 supports configuring IPSec point-to-point interconnection in transparent mode
The device does not support configuring IPSec point-to-point interconnection in transparent mode.

Can point-to-point conferences be controlled by the chair
Point-to-point conferences have no chair site, so the chair site cannot be configured to perform conference control.

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