I'll give you a basic example that expands a bit on what Illuminatus said about try one and then the other.

# in pseudocode no less!
get $deviceIP
ping $deviceIP or report it as not responding and exit
ssh $deviceIP
if ssh error then
    if ssh error is 'connection refused' 
    then
        telnet $deviceIP or report error and exit
        do work with telnet connection
    else 
        report error and exit
    end if
end if
do work with ssh connection

[download]

If you already know which devices use telnet and which use ssh then things get even simpler. Just try the correct protocol!

Update: Oops. I forgot the most important part.

You will not get any good responses until you can give us some clear information regarding your problem and code that demonstrates said problem.

In reply to Re: Forced to modify perl telnet script to use both telnet and ssh by Mr. Muskrat
in thread Forced to modify perl telnet script to use both telnet and ssh by essej1

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