North American Network Operators Group
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Re: IOS 12.3(x) Strange service ports open on router

  • From: Steven M. Bellovin
  • Date: Fri Apr 09 15:52:48 2004 
In message <[email protected]>, Robert Blayzor writes:
>
>Petri Helenius wrote:
>
>> Put "transport input none" to your tty lines.
>
>That was it.  Seems like the default value changed between versions. 
>Thanks.

Wonderful -- a change to default behavior that opens up lots of ports.  
This is exactly the wrong direction to go in.

		--Steve Bellovin, http://www.research.att.com/~smb