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robad
Beginner

Massive INVALID attempts to Terminal Servers to Async lines

Hi Guys,

We've installed ISE 3, and we are seeing that we have massive invalid/failed logging attempts to Async ports on few Terminal Servers. See attached screenshots. more than 1 Million attempts !! [We had similar issue with our old ISE, and we forgot about it, but now when all is now, we have more motivation to solve it   ]

It's happened in the same time and to the same devices. It seems that some commands are trying to send to there

 

Maybe I should add some config on the interface Async ? or one the 'line' ? [see attached "show line"]

 

1. Why does it happens ? 

2. How can we prevent it ?

 

Thanks in advance

1 REPLY 1
robad
Beginner

Someone ?........... 

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