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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
 <META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
 <TITLE>VPN HOWTO: ÍýÏÀ</TITLE>
 <LINK HREF="VPN-HOWTO-3.html" REL=next>
 <LINK HREF="VPN-HOWTO-1.html" REL=previous>
 <LINK HREF="VPN-HOWTO.html#toc2" REL=contents>
</HEAD>
<BODY>
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<A HREF="VPN-HOWTO-1.html">Á°¤Î¥Ú¡¼¥¸</A>
<A HREF="VPN-HOWTO.html#toc2">Ìܼ¡¤Ø</A>
<HR>
<H2><A NAME="s2">2. ÍýÏÀ</A></H2>

<H2><A NAME="ss2.1">2.1 VPN¤È¤Ï²¿¤«¡©</A>
</H2>

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<PRE>
                                      \          \
                   --------------     /          /    --------
     ¥ê¥â¡¼¥È  ___| ¥¯¥é¥¤¥¢¥ó¥È |____\ ¥¤¥ó¥¿¡¼ \___| ¥µ¡¼¥Ð |______ ¥×¥é¥¤¥Ù¡¼¥È
   ¥Í¥Ã¥È¥ï¡¼¥¯   |    ¥ë¡¼¥¿    |    /   ¥Í¥Ã¥È /   | ¥ë¡¼¥¿ |       ¥Í¥Ã¥È¥ï¡¼¥¯
                   --------------     \          \    --------
                                      /          /


                         ¥¯¥é¥¤¥¢¥ó¥È¥ë¡¼¥¿
                  -----------------------------------------------------
                 |   /->    10.0.0.0/255.0.0.0   \                     |
 ¥ê¥â¡¼¥È        |  |-->  172.16.0.0/255.240.0.0  |--> ¥È¥ó¥Í¥ë >--\   |
  ¥Í¥Ã¥È¥ï¡¼¥¯>--|--|--> 192.168.0.0/255.255.0.0 /                  |--|----> ¥¤¥ó¥¿¡¼¥Í¥Ã¥È
 192.168.12.0    |  |                                               |  |
                 |   \-----> 0.0.0.0/0.0.0.0 --> IP¥Þ¥¹¥«¥ì¡¼¥É >--/   |
                  -----------------------------------------------------


                           ¥µ¡¼¥Ð¥ë¡¼¥¿
                   ------------------------------------------------------
                  |                     /->    10.0.0.0/255.0.0.0    \   |
                  |   /--> ¥È¥ó¥Í¥ë >--|-->  172.16.0.0/255.240.0.0   |--|--> ¥×¥é¥¤¥Ù¡¼¥È
¥¤¥ó¥¿¡¼¥Í¥Ã¥È >--|--|                  \--> 192.168.0.0/255.255.0.0 /   |    ¥Í¥Ã¥È¥ï¡¼¥¯
                  |  |                                                   |   172.16.0.0/12
                  |   \-----> 0.0.0.0/0.0.0.0 -----> /dev/null           |  192.168.0.0/16
                   ------------------------------------------------------
</PRE>
<P>¾å¤Î¿Þ¤Ï¥Í¥Ã¥È¥ï¡¼¥¯¤ò¤É¤ÎÍͤ˹½ÃÛ¤·ÆÀ¤ë¤«¤ò¼¨¤·¤Æ¤¤¤Þ¤¹¡£
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¤È¤·¤ÆÆ°ºî¤¹¤ë Linux ¥Ü¥Ã¥¯¥¹¤Ç¤¹¡£¸«¤Æʬ¤«¤ë¤è¤¦¤Ë¡¢¥ê¥â¡¼¥È¥Í¥Ã¥È¥ï¡¼¥¯¤Ï
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<H2><A NAME="ss2.2">2.2 SSH¤ÈPPP</A>
</H2>

<P>VPN ¤È¤·¤Æ¡¢SSH ¤ª¤è¤Ó PPP ¤òÍѤ¤¤¿¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æ¤âµ­¤·¤Æ¤ª¤­¤Þ¤¹¡£
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<P>ssh ¤È pppd ¤ò°ì½ï¤ËÆ°¤«¤¹¼ÂºÝ¤Î¤¦¤Þ¤¤ÊýË¡¤Ï¡¢Arpad Magosanyi ¤Ë
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½ÐÍè¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹¡£¥µ¡¼¥Ð¦¤Ç¤Ï¡¢pppd ¤Ï ssh ¥»¥Ã¥·¥ç¥ó¤Ë¤ª¤±¤ë
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<H2><A NAME="ss2.3">2.3 ¤½¤Î¾¤Î VPN ¥·¥¹¥Æ¥à</A>
</H2>

<P>¤â¤Á¤í¤ó¡¢VPN ¤ò¹½ÃÛ¤¹¤ë¤¿¤á¤Î¾¤ÎÊýË¡¤â¤¢¤ê¤Þ¤¹¡£¤³¤³¤Ç¤Ï¾¤Î¥·¥¹¥Æ¥à¤Î¤¦¤Á
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<P>PPTP ¤Ï¥Þ¥¤¥¯¥í¥½¥Õ¥È¤Î VPN ¤Î¤¿¤á¤Î¥×¥í¥È¥³¥ë¤Ç¤¹¡£¤½¤ì¤Ï Linux ¤Ç
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ʬ¤«¤Ã¤Æ¤¤¤Þ¤¹¡£¤É¤Î¤è¤¦¤Ë»ÈÍѤ¹¤ë¤«¤Ï 
<A HREF="http://www.linuxdoc.org/HOWTO/VPN-Masquerade-HOWTO.html">Linux VPN Masquerade HOWTO</A> ¤Ë¼¨¤µ¤ì¤Æ¤¤¤ë¤Î¤Ç¡¢¤³¤³¤Ç¤ÏÀâÌÀ¤·¤Þ¤»¤ó¡£
<H3>IP Sec</H3>

<P>IP Sec ¤Ï SSH ¤È¤Ï°Û¤Ê¤ë¥×¥í¥È¥³¥ë¤Î¥»¥Ã¥È¤Ç¤¹¡£»ä¤Ï¡¢¼Â¤Ï¤½¤ì¤Ë¤Ä¤¤¤Æ
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<A HREF="http://sites.inka.de/sites/bigred/devel/cipe.html">the CIPE homepage</A>¤Ë¤¢¤ê¤Þ¤¹¡£¤³¤ì¤Ë¤Ä¤¤¤Æ¤Ï¤â¤¦¾¯¤·¾Ü¤·¤¯Ä´¤Ù¤è¤¦¤È»×¤Ã¤Æ¤¤¤ë¤Î¤Ç¡¢
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