M2M IDG500AM-0T001 User Manual page 209

M2M Cellular Gateway
The PPTP Server must have a Static IP or a FQDN, and maintain a Client list (account /
password). The Client may be a mobile user or mobile site, and requesting the PPTP
tunnel connection with its account / password.
PPTP protocol is used for establishing a PPTP VPN tunnel.
The PPTP Client's "Default Gateway/Remote Subnet" setting determines how the
Internet traffic from PPTP client site is handled.
Parameter Setup Example
For Network‐B at Mobile Office
Following 3 tables list the parameter configuration for above example diagram of PPTP
VPN client in Network‐B.
Use default value for those parameters that are not mentioned in these tables.
Configuration Path
PPTP
Client/Server
Configuration Path
PPTP Client
Configuration Path
PPTP Client Name
Interface
Remote IP/FQDN
User Name
Password
Default Gateway/Remote Subnet
Authentication Protocol
MPPE Encryption
Tunnel
Scenario Operation Procedure
In above diagram, Network‐A is in the headquarters, and the subnet of its Intranet is
10.0.76.0/24. The security gateway for Network‐A has the IP address of 10.0.76.2 for
LAN interface and 203.95.80.22 for WAN interface. It serves as a PPTP server.
However, Network‐B is in the mobile office and the subnet of its Intranet is
10.0.75.0/24. The security gateway for Network‐B has the IP address of 10.0.75.2 for
LAN interface and 118.18.81.33 for WAN interface. It serves as a PPTP client.
The PPTP client uses "User‐1" user account to dial in the PPTP server at HQ for
establishing a PPTP VPN tunnel. So both Intranets of 10.0.75.0/24 and 10.0.76.0/24 can
securely communicate each other.
Finally, the client hosts in the Intranet of Network‐B at mobile office can access the
server or database resources in the Intranet of Network‐A at HQ in a secured link.
However, if the "Default Gateway/Remote Subnet" parameter in the Security Gateway
Index skipping is used to reserve slots for new function insertion, when required.
[PPTP]‐[Configuration]
■ Enable
Client
[PPTP]‐[PPTP Client Configuration]
■ Enable
[PPTP]‐[ Configuration for A PPTP Client]
PPTP #1
WAN 1
203.95.80.22
User‐1
1234
Default Gateway
MS‐CHAP
■ Enable
■ Enable
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