GridRouter™ User Guide
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6.3.1.9 Serial PPP
Serial PPP is an application that acts as a modem emulator and provides a PPP connection to a device
connected serially to the GridRouter. Any device that would connect directly to a modem and issue AT
commands should be able to connect to the GridRouter and access the same network as the GridRouter
(whether public to the Internet or a private network). Some serial devices alert a head-end server
whenever their IP address changes, so the GridRouter has the capability to reset the serial PPP
connection whenever its WAN IP address changes. The GridRouter toggles between a primary and a
secondary local IP address when assigning one to the serial PPP device.
Figure 6-
22
0: Network > Serial PPP
Configuration
Enabled:
Default value is “
Disable
“.
Baudrate:
Specifies the number of symbols per second transferred.
Data bits:
Specifies the actual number of data bits sent in a character frame.
Parity:
Additional error checking on serial data transfer.
Stop bits:
Specifies the number of stop bits in a serial character frame.
Device:
Specifies the physical RJ45 serial connector on the GridRouter. “
Serial0
“ represents “Port 0” on
the board’s silk screen. “Serial1“ represents “Port 1”.
Primary Local IP Address:
Specifies the primary IP address to be given to the device connected serially
to the GridRouter.
Update Local IP:
Specifies whether or not to force the GridRouter to toggle the local IP address between
primary and secondary each time the WAN IP address changes.
Secondary Local IP Address:
Specifies the secondary IP address to be given to the device connected
serially to the GridRouter.
Verify Update Ack:
Specifies whether or not to toggle the local IP address if incoming traffic on the port
is not seen within the ‘Update Ack Timeout’ period.
Update Ack Timeout:
Specifies the amount of time in seconds to wait for acknowledgement traffic before
Deleted:
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