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From "Rory Winston (JIRA)" <j...@apache.org>
Subject [jira] Closed: (NET-85) [net] telnet client not working well with Zirion Power Controller Model PSS-108MA
Date Tue, 19 Feb 2008 22:34:43 GMT

     [ https://issues.apache.org/jira/browse/NET-85?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rory Winston closed NET-85.
---------------------------

    Resolution: Cannot Reproduce

> [net] telnet client not working well with Zirion Power Controller Model PSS-108MA
> ---------------------------------------------------------------------------------
>
>                 Key: NET-85
>                 URL: https://issues.apache.org/jira/browse/NET-85
>             Project: Commons Net
>          Issue Type: Bug
>    Affects Versions: 1.4
>         Environment: Operating System: Linux
> Platform: Other
>            Reporter: Ramchander Namani
>         Attachments: tcp_commons_net.txt, tcp_linux_telnet.txt
>
>
> Description:
> When I used commons-net telnet client to get the power status of the ports in
> Zirion Power controller (Model: PSS-108MA), I am not getting the output
> immediately after the command "*magic#POS" is typed. Instead I get the output
> after another command is typed. Please have a look below to understand well:
> Actual Result: 
> java -classpath commons-net-1.3.0-dev.jar examples.TelnetClientExample
> 192.168.11.203 8000
> TelnetClientExample
> Type AYT to send an AYT telnet command
> Type OPT to print a report of status of options (0-24)
> Type REGISTER to register a new SimpleOptionHandler
> Type UNREGISTER to unregister an OptionHandler
> Type SPY to register the spy (connect to port 3333 to spy)
> Type UNSPY to stop spying the connection
>  220 192.168.11.203 RCON server (ZIRION v1.1) ready.
> Received DO for option code 1
> *magic#POS
>  *magic#exit
> 11111111
>  221 Goodbye.
> Expected Result:
> When I used Linux telnet client to connect to the above controller, the Linux
> telnet client is working fine.
> telnet 192.168.11.203 8000
> Trying 192.168.11.203...
> Connected to 192.168.11.203 (192.168.11.203).
> Escape character is '^]'.
>  220 192.168.11.203 RCON server (ZIRION v1.1) ready.
> *magic#POS
>  11111111    (Comment:we r getting O/P imediately after issuing command)
> *magic#exit
>  221 Goodbye.
> Connection closed by foreign host.
> I have tcp dump traces for linux telnet client and commons-net telnet client
> which say that the data is sitting on the kernel which is not read by the
> commons-net telnet client. I am attaching the tcpdump traces both for Linux
> telnet client (tcp_linux_telnet.txt) and commons-net telnet
> client(tcp_commons_net.txt). You can view 4 telnet packet dump using the command
> "tcpdump -r <filename> -xx -s 1500" or ethereal. I have taken telnet dump at the
> time of issuing the command "*magic#POS".
> Build Date & Platform:
> I have build "commons-net-1.3.0-dev.jar" from the cvs HEAD of jakarta-commons. I
> also used latest commons-net-1.4.1.tar.gz, but even then the same problem persists.

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