TP-Link Omada ER8411 VPN Router - Manual (Page 153)

User Guide 144
Configuring VPN VPN
a pre-shared key needs to be entered, and then the L2TP traffic will be encrypted with a
default IPsec configuration. If unencrypted is selected, the VPN tunnel traffic will not be
encrypted.
■ Authentication
L2TP uses an account name and password for authentication on the VPN server. Only legal
clients can set up a tunnel with the server, thus enhancing network security.
PPTP
PPTP (Point-to-Point Tunneling Protocol) is a network protocol that enables the secure
transfer of data from a remote client to a private enterprise server by creating a VPN
across TCP/IP-based data networks. PPTP supports on-demand, multi-protocol, virtual
private networking over public networks, such as the internet. The basic concepts of PPTP
are as follows:
■ MPPE Encryption
MPPE (Microsoft Point-to-Point Encryption) scheme is a means of representing PPP
packets in an encrypted form defined in RFC 3078. You can select encrypted or
unencrypted as MPPE encryption. If encrypted is selected, the VPN tunnel traffic will
be encrypted with RSA RC4 algorithm to ensure data confidentiality. If unencrypted is
selected, the VPN tunnel traffic will not be encrypted.
■ Authenticaiton
PPTP uses an account name and password for authentication on the VPN server. Only legal
clients can set up a tunnel with the server, thus enhancing network security.
OpenVPN
OpenVPN uses OpenSSL (Open Secure Sockets Layer) for encryption of UDP and TCP
for traffic transmission. OpenVPN uses a client-server connection to provide secure
communications between a server and a remote client over the Internet.
User Account List
This feature enables you to create VPN connection accounts for remote devices to
connect to the VPN server. If the router acts as the L2TP/PPTP client, you don’t need to
configure the L2TP/ PPTP user accounts on this page.