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Watson-SHDSL-Router-Manual.doc

Version 1.1-07

Watson SHDSL Router

Operating Manual

Revision: 2012-02-15

3-3

Watson SHDSL router’s Point-to-Point Protocol (PPP) currently supports four au-

thentication protocols: Password Authentication Protocol (PAP), Challenge

Handshake Authentication Protocol (CHAP), and Microsoft CHAP version 1 and

PPP supports encryption facilities to secure the data across the network connec-

tion. A wide variety of encryption methods may be negotiated, although typically

only one method is used in each direction of the link. Please note that PPP en-

cryption can only be used with MS-CHAP or MS-CHAP-V2 authentication proto-

cols.

Also supported is the PPP Compression Control Protocol (CCP) which is respon-

sible for configuring, enabling, and disabling data compression algorithms on

both ends of the point-to-point link. It is used to signal a failure of the compres-

sion/ decompression mechanism in a reliable manner.

3.1.5 IPSEC VPN

Watson SHDSL router integrates IPSEC VPN capabilities. It allows establishing

a Virtual Private Network (VPN) to connect with business partners and branch of-

fices using data encryption through the Internet. It provides secure communica-

tions without the expense of leased lines. Watson SHDSL router VPN implemen-

tation is based on the IPSec standard and is fully interoperable with other IPSec-

based VPN products.

VPN, IPSec and PPTP features enable Watson SHDSL router to act as a VPN

client, allowing a user to securely connect with remote computers without need-

ing to run any additional PC-based VPN software; or as a VPN server, allowing a

user to connect to a home or office network from a remote location.

In addition, Watson's VPN pass-through support enables a user to establish a

VPN connection from a PC-based VPN client by allowing the connection to pass

transparently through the router's firewall and Network Address Translation

(NAT).

3.1.6 Point-to-Point Tunneling Protocol (PPTP)

Point-to-Point Tunneling Protocol (PPTP) is a protocol developed by Microsoft

targeted at creating VPN connections over the Internet. This enables remote us-

ers to access the router via any ISP that supports PPTP on its servers. PPTP

encapsulates network traffic, encrypts content using Microsoft's Point-to-Point

Encryption (MPPE) protocol that is based on RC4, and routes using the generic

routing encapsulation (GRE) protocol.

With Watson SHDSL router, PPTP is targeted at serving two purposes:

 Connection to the Internet using user name and password authentication.

 Connection to a remote network using a Virtual Private Network (VPN) tunnel

over the Internet. This enables secure transfer of data to another location

over the Internet, using user name and password authentication.

Watson SHDSL router can also act as a Point-to-Point Tunneling Protocol Server

(PPTP Server), accepting PPTP client connection requests.

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