5 8
T R O U B L E S H O O T I N G
5 8
M U LT E N E T P O C K E T P A D
There may be a number of reasons why you may find the Traceroute failing at certain points
( from the ISP blocking ICMP packets, to incorrect routing, to physical line disruptions). An
email to the ISP of the network which contains the problem or even an email to your Network
Administrator will get some answers.
If the Traceroute results indicate the subnet in which your PocketPAD is in (or its Gateway IP),
then it is possible that your PocketPAD is powered off/malfunctioned or there is a cable/switch/
hub problem.
NOTE:
MS Windows uses ‘tracert’. Other OS’ usually use ‘traceroute’.
Telnet
Use the Telnet command to connect to the TCP port of your PocketPAD. You will observe data
received from the connected serial device. You can send data to the serial device as well.
If you are unable to connect to the configured port, check your PocketPAD settings. If you
have made changes, you need to reboot the PocketPAD for it to take effect.
Check the Network Application settings. If ‘
Remote Host/IP Address
’ (and/or ‘
Remote Port
’)
is configured, you will need to connect from that specific host (:port). If the ‘
Application Type
’
is active, you won’t be able to telnet to the port (set it to Passive to test). Try ‘telnetting’ to the
Remote Host’s port to check if it opens a socket.
Error connecting to TCP port
How many hosts are connecting to each Network Application?
A maximum of 5 TCP and/or UDP network applications can be configured on the PocketPAD.
Each application can handle 5 socket connections (Total of 25 concurrent socket connections
at any one time with all applications configured as Passive).
Web Browser Proxy Settings
Check your Browser Proxy settings should you be able to successfully Ping the PocketPAD,
but are unable to connect to the PocketPAD’s Web Configuration.
If the Proxy is enabled, traffic is directed outside the LAN to the internet via a gateway. If
you cannot alter these Proxy settings, try using Telnet Configuration to alter the PocketPAD
parameters.