03-18-2002
A possible solution is that while performing a single port scan you are getting a correct response from an "active" or open port.
Now under a full 65535 port scan you are pushing alot of packets! You hadn't stated your time frequency of datagram submittal...but with an educated guess......i'd say that you are pumping them out as quick as possible.
When a system is under a pretty heavy load...the stack gets a bit quirky. Thus the inconsistent recognitions.....i.e...a "filtered" state.
Especially when your only traversing a portion of your TCP/IP stack, and not the whole OSI model.
Have you reviewed RFC 793 (Transmission Control Protocol) for valid responses? I suggest capturing packets to verify your systems responses.
HTH.
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LEARN ABOUT ULTRIX
xgetpointermapping
XSetPointerMapping(3X11) MIT X11R4 XSetPointerMapping(3X11)
Name
XSetPointerMapping, XGetPointerMapping - manipulate pointer settings
Syntax
int XSetPointerMapping(display, map, nmap)
Display *display;
unsigned char map[];
int nmap;
int XGetPointerMapping(display, map_return, nmap)
Display *display;
unsigned char map_return[];
int nmap;
Arguments
display Specifies the connection to the X server.
map Specifies the mapping list.
map_return
Returns the mapping list.
nmap Specifies the number of items in the mapping list.
Description
The function sets the mapping of the pointer. If it succeeds, the X server generates a event, and returns Element map[i] defines the logi-
cal button number for the physical button i+1. The length of the list must be the same as would return, or a error results. A zero ele-
ment disables a button, and elements are not restricted in value by the number of physical buttons. However, no two elements can have the
same nonzero value, or a error results. If any of the buttons to be altered are logically in the down state, returns and the mapping is
not changed.
can generate a error.
The function returns the current mapping of the pointer. Pointer buttons are numbered starting from one. returns the number of physical
buttons actually on the pointer. The nominal mapping for a pointer is map[i]=i+1. The nmap argument specifies the length of the array
where the pointer mapping is returned, and only the first nmap elements are returned in map_return.
Diagnostics
Some numeric value falls outside the range of values accepted by the request.
Unless a specific range is specified for an argument, the full range defined by the argument's type is accepted. Any argument
defined as a set of alternatives can generate this error.
See Also
XChangeKeyboardControl(3X11), XChangeKeyboardMapping(3X11)
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XSetPointerMapping(3X11)