ER-800 User Manual
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Appendix 4: Use ER-800 to Access
LAN Remotely via VPN
ER-800 can be used to extend and access the corporate virtual LAN remotely with
VPN function, for example, the user can use ER-800 to dial into corporate LAN. But
the router in user's corporate LAN should support VPN in this way. We will illustrate
below how to implement this kind of network connection with VPN.
1.
System Architecture
Figure Appendix 4-1: Use ER-800 to access LAN remotely via VPN
2.
Preparations
1)
One router with VPN function(use PPTP protocol as an example), a LAN is
attached to this router and can access internet;
2)
One ER-800(including accessories)
3)
One USIM card with internet service(for example China Unicom wo)
4)
One PC
3.
Steps
1)
Configure to use PPTP when accessing the router
Here we use router RV042 from Linksys as an example. First, this router
supports VPN and PPTP protocol. Login this Linksys router. and click
"VPN"->"PPTP", enable PPTP server and set the IP range for VPN
connection, then create username and password used for VPN connection,
as shown in the figure below:
