Microhard Systems IPN4G, Руководство по эксплуатации, Страница: 90 / 193

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4.0 Configuration
IP Protocol Config (Continued…)
PPP: COM0 can be configured as a PPP server for a serial connection with a PC or other device. The
attached PC could then use a dedicated serial (Windows - dialup/modem) type PPP connection to access
the network resources of the IPn4G. Note: COM1 does not support this mode.

PPP Mode
Can be set for Active or Passive. If set for Active, the PPP server will initiate the PPP
connection with a PPP client. The server will periodically send out link requests following PPP
protocol. If set to Passive, the PPP server will not initiate the PPP connection with PPP client.
The server will wait passively for the client to initiate connection.
Default: Passive

Expected String
When a client (PC or device) initiates a PPP session with the modem, this is the handshaking
string that is expected in order to allow a connection. Generally this doe not need to be
changed.
Default: CLIENT

Response String
This is the handshaking string that will be sent by the modem once the expected string is
received. Generally this does not need to be changed.
Default: CLIENTSERVER

PPP LCP Echo Failure Number
The PPP server will presume the peer to be dead if the LCP echo-requests are sent without
receiving a valid LCP echo-reply. If this happens, PPP server will terminate the connection.
Use of this option requires a non-zero value for the LCP Echo Interval parameter. This option
can be used to enable PPP server to terminate after the physical connection has been
broken (e.g., the modem has hung up).
Default: 0

PPP LCP Echo Interval
The PPP server will send an LCP echo-
request frame to the peer every ‘n’ seconds. Normally
the peer should respond to the echo-request by sending an echo-reply. This option can be
used with the LCP-echo-failure option to detect that the peer is no longer connected.
Default: 0

PPP Local IP
Enter the local PPP IP Address, the IP Address of the IPn4G COM0 Port.
Default: 192.168.0.1

PPP Host IP
Enter the PPP Host IP here. This is the IP of the PC or attached device.
Default:
192.168.0.99

PPP Idle Timeout(s)
It is the timeout for tearing down the ppp connection when there is no data traffic within the
time interval. When there is data coming, new ppp connection will be created.
Default:
30