copyright

linux下的ppp协议簇开源代码； 可以进行linux内核级的pppoe拨号

See the respective source files to find out which copyrights apply.

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Copyright (C) 2002 Roaring Penguin Software Inc.

Permission to use, copy, modify, and distribute this software for any
purpose and without fee is hereby granted, provided that this
copyright and permission notice appear on all copies and supporting
documentation, the name of Roaring Penguin Software Inc. not be used
in advertising or publicity pertaining to distribution of the program
without specific prior permission, and notice be given in supporting
documentation that copying and distribution is by permission of
Roaring Penguin Software Inc..

Roaring Penguin Software Inc. makes no representations about the
suitability of this software for any purpose.  It is provided "as is"
without express or implied warranty.

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Copyright (C) 1995,1996,1997,1998 Lars Fenneberg <[e-mail]>

Permission to use, copy, modify, and distribute this software for any
purpose and without fee is hereby granted, provided that this copyright and
permission notice appear on all copies and supporting documentation, the
name of Lars Fenneberg not be used in advertising or publicity pertaining to
distribution of the program without specific prior permission, and notice be
given in supporting documentation that copying and distribution is by
permission of Lars Fenneberg.

Lars Fenneberg makes no representations about the suitability of this
software for any purpose.  It is provided "as is" without express or implied
warranty.

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Copyright 1992 Livingston Enterprises, Inc.
Livingston Enterprises, Inc. 6920 Koll Center Parkway Pleasanton, CA  94566

Permission to use, copy, modify, and distribute this software for any
purpose and without fee is hereby granted, provided that this copyright
and permission notice appear on all copies and supporting documentation,
the name of Livingston Enterprises, Inc. not be used in advertising or
publicity pertaining to distribution of the program without specific
prior permission, and notice be given in supporting documentation that
copying and distribution is by permission of Livingston Enterprises, Inc.

Livingston Enterprises, Inc. makes no representations about the suitability
of this software for any purpose.  It is provided "as is" without express
or implied warranty.
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[C] The Regents of the University of Michigan and Merit Network, Inc. 1992,
1993, 1994, 1995 All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice and this permission notice appear in all
copies of the software and derivative works or modified versions thereof,
and that both the copyright notice and this permission and disclaimer
notice appear in supporting documentation.

THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE REGENTS OF THE
UNIVERSITY OF MICHIGAN AND MERIT NETWORK, INC. DO NOT WARRANT THAT THE
FUNCTIONS CONTAINED IN THE SOFTWARE WILL MEET LICENSEE'S REQUIREMENTS OR
THAT OPERATION WILL BE UNINTERRUPTED OR ERROR FREE.  The Regents of the
University of Michigan and Merit Network, Inc. shall not be liable for any
special, indirect, incidental or consequential damages with respect to any
claim by Licensee or any third party arising from use of the software.
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Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991.
All rights reserved.

License to copy and use this software is granted provided that it
is identified as the "RSA Data Security, Inc. MD5 Message-Digest
Algorithm" in all material mentioning or referencing this software
or this function.

License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data
Security, Inc. MD5 Message-Digest Algorithm" in all material
mentioning or referencing the derived work.

RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.

These notices must be retained in any copies of any part of this
documentation and/or software.
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