Industry Cellular Gateway
get “user name”, “password” and server’s global IP. In addition, it is required to identify the operation mode
for each tunnel as main connection, failover for another tunnel, or load balance tunnel to increase overall
bandwidth. It needs to decide “Default Gateway” or “Remote Subnet” for packet flow. Moreover, you can also
define what kind of traffics will pass through the PPTP tunnel in the “Default Gateway / Remote Subnet”
parameter.
Besides, for the PPTP client peer, a Remote
Subnet item is required. It is for the Intranet of
PPTP server peer. So, at PPTP client peer, the
packets whose destination is in the dedicated
subnet will be transferred via the PPTP tunnel.
Others will be transferred based on current
routing policy of the gateway at PPTP client
peer. But, if you entered 0.0.0.0/0 in the
Remote Subnet field, it will be treated as a
"Default Gateway" setting for the PPTP client
peer, all packets, including the Internet
accessing of PPTP client peer, will go through
the established PPTP tunnel. That means the
remote PPTP server peer controls the flow of
any packets from the PPTP client peer. Certainly, those packets come through the PPTP tunnel.
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