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isReachable in a specific port?

 
joao zaratine
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hello,
I have a problem, I need to test a link between my computer and a remote ip camera, and I need to do this really fast.

so, I was trying to use the method isReachable but I need to find a way to set the port.

there is any other kind or method that can I use to that situation?

I tried to use the InetSocketAddress but it looks so slow.
that was slow just when a invalid IP is entered, but when the link is up and the port is not, then the method runs fast.

anyone can help me?
(forgive me for my english)
 
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