Proroute GEM420 4G M2M Router
GEM420 User Manual
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4.
Remote LNS Port:
Port number of remote L2TP server.
5.
User Name:
The user name which can be validated by remote L2TP server.
6.
Password:
The password which can be validated by remote L2TP server.
7.
Tunneling Password:
Enter tunneling password if remote L2TP server requests
it. It’s optional.
8.
Default Gateway/Remote Subnet:
You can choose “Default Gateway” option or
“Remote Subnet” option here. When “Default Gateway” is chosen, all traffic from
Intranet of Business Security Gateway goes over this L2TP tunnel if these
packets don’t match the Peer Subnet of other L2TP tunnels. There is only one
L2TP tunnel to own the “Default Gateway” property. However, when “Peer
Subnet” is chosen, peer subnet parameter needs to be filled and it should be the
LAN subnet of remote L2TP server. If an Intranet packet wants to go to this peer
subnet, the L2TP tunnel will be established automatically.
9.
Authentication Protocol:
You can choose authentication protocol as PAP,
CHAP, MS-CHAP, or MS-CHAP v2. The protocol you choose must be supported
by remote L2TP server.
10.
MPPE Encryption:
Check the “Enable” box to activate MPPE encryption.
Please note that MPPE needs to work with MS-CHAP or MS-CHAP v2
authentication methods.
11.
NAT before Tunneling
: Check the “Enable” box to let hosts in the Intranet of
Business Security Gateway
can go to access Internet via remote PPTP server.
By default, it is enabled. However, if you want the remote PPTP
Server to
monitor the Intranet of local Business Security Gateway, the option can’t be
enabled.
12.
LCP Echo Type:
Choose the way to do connection keep alive. By default, it is
“Auto” option that means system will automatically decide the time interval
between two LCP echo requests and the times that system can retry once
system LCP echo fails. You also can choose “User-defined” option to define the
time interval and the retry times by yourself.
13.
Service Port:
Indicate which port on this device is used to connect to remote
L2TP server.
14.
Tunnel:
Check the “Enable” box to activate the tunnel.
3.2.3.4 GRE
Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco
Systems that can encapsulate a wide variety of network layer protocols inside virtual
point-to-point links over an Internet Protocol internetwork.
3.2.3.4.1 GRE VPN Tunnel Scenario
