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                        155.230.13.242      155.230.40.242
H1---------hub1--------+------R------+--------hub2----H2
155.230.14.213
155.230.40.241
255.255.252.0
255.255.255.0

¹®Á¦´Â ping 155.230.13.242¸¦ 155.230.14.213(ÆíÀÇ»ó H1À̶ó ÇϰڽÀ´Ï´Ù.)¿¡¼­
ÇÏ¸é ´ç¿¬È÷ 0.5msecÀ̳»·Î »¡¸® µé¾î¿É´Ï´Ù. 155.230.213¿¡¼­ 155.230.40.241¿¡
Çεµ ºü¸£±¸¿ä...

¶ÇÇÑ H1À̳ª H2¿¡¼­ ¼­·Î°£ÀÇ telnetµµ ¹®Á¦°¡ ¾ø´Âµ¥¿ä...

ÀÌ»óÇÏ°Ô H1À̳ª H2¿¡¼­ ¶ó¿ìÅÍ·Î telnetÀ» Çϸé...
^] escape character...¾î¼±¸ Àú¼±¸ ³ª¿À¸é¼­... Á¤ÀÛ

login: ÇÏ°í ¶ã¶§±îÁö´Â ÇÑ 30ÃÊ´Â ±â´Ù·Á¾ß µÇ´Â°Å °°½À´Ï´Ù. Àü ¿©±â¼­
telnetÀÌ ¾ÈµÇ´ÂÁÙ ¾Ë¾Ò´Âµ¥... µÇ±ä µÇ´õ±º¿ä.. ±×¸®°í ÀÏ´Ü ¿¬°á¸¸ µÇ¸é ÀüÇô
´À¸°°Ç ¸ø´À³¢°Ú±¸¿ä...

arp -a µîÀ¸·Î °¢ ÄÄÇ»ÅÍ¿¡¼­ È®ÀÎÇØºÁµµ ´Ù Àִ°Š°°±¸¿ä,

netstat -rnÀ¸·Î ÇØµµ ¶ó¿ìÆÃ Å×À̺íÀº Àß ¼³Á¤µÈ°Å °°´øµ¥¿ä

H1ÀÇ default router´Â 155.230.13.242·Î, H2ÀÇ default router´Â
155.230.40.242·Î ÇÏ¿´½À´Ï´Ù.

¾ÆÂü... Àü ÀÌ»óÇÏ°Ô netstat -rnÀ» Çϸé
µÎ¹øÂ° Ä÷³ÀÖÁÒ? gateway´ø°¡? º¸Åë TCP/IPÃ¥¿¡ º¸¸é ±× ºÎºÐÀÌ IPÁÖ¼Ò·Î µÇ¾î
ÀÖ´øµ¥, Àü ethernet address·Î µÇ¾îÀÖ´õ±º¿ä.. --;

Èì... ¾ÕÀ¸·Î ¶ó¿ìÅÍ 1°³ Á¤µµ¸¦ ´õ ´Þ¾Æ¾ß µÇ´Âµ¥, ÀÌ·± ¼öµ¿ ¶ó¿ìÆÃ Á¶ÀÛÀ¸·Î
Àß µÉÁö ¸ð¸£°Ú±º¿ä. ±×·³ ...

--
==================================================================
Choi Young Soo                          ÃÖ¿µ¼ö
School of Electronic & Electrical Eng.  °æºÏ´ëÇб³ ÀüÀÚÀü±â°øÇкÎ
Kyungpook National University           ÀüÀÚÀü±â°øÇкÎ
Sankyeok-dong 1370                      ´ë±¸ ±¤¿ª½Ã
Taegu 702-701                           ºÏ±¸ »ê°Ýµ¿ 1370¹øÁö
Republic of Korea                       ´ëÇѹα¹

E-mail : guru0109@palgong.kyungpook.ac.kr

====================================================================



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