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  traceroute·Î ³×Æ®¿öÅ© ÀÌ»ó ¿©ºÎ È®ÀÎ (±Û È«¼®¹ü) ÀÛ¼ºÀÏ : 2003/09/11 18:42
 
  • ±Û¾´ÀÌ : ÁÁÀºÁøÈ£ ( http://coffeenix.net/ )
  • Á¶È¸¼ö : 10332
          [ ÀÌÀüÈ­¸é / ¼öÁ¤ ]   ºñ¹Ð¹øÈ£ :     Àμâ¿ë È­¸é
      sec-info ¸ÞÀϸµ¿¡¼­ ¹ÞÀº ±ÛÀÔ´Ï´Ù.

    ¿øº» ±×´ë·Î ¿Ã¸³´Ï´Ù.
    --------------------------------------------------------------
    Re: ³×Æ®¿öÅ© ÀÌ»ó ¿©ºÎ È®ÀÎ(traceroute)
    ³¯Â¥: Sat, 12 Jul 2003 10:38:35 +0900
    º¸³½ÀÌ: "Sukbum Hong" <antihong@tt.co.kr>
    ¹Þ´ÂÀÌ: "À¯ ±âºÀ" <load_bong@hotmail.com>, <sec-info@cert.certcc.or.kr>

    ¾È³çÇϽʴϱî?

    ¿À´Ã°ú³»ÀÏÀÇ È«¼®¹üÀÔ´Ï´Ù.

    traceroute ´Â ¸ñÀûÁö±îÁö À̸£´Â ³×Æ®¿öÅ©ÀÇ °æ·Î(¶ó¿ìÅÍ)¸¦ º¸¿©ÁÖ´Â °ÍÀ¸·Î
    ¸ñÀûÁö¿¡ À̸£´Â outbound °æ·Î¸¸ º¸¿©ÁÙ »Ó, µ¹¾Æ¿À´Â inbound °æ·Î´Â
    ³×Æ®¿öÅ© ±¸Á¶¿Í »çÁ¤¿¡ µû¶ó °°À» ¼öµµ ÀÖ°í ´Ù¸¦ ¼öµµ ÀÖ½À´Ï´Ù.

    traceroute °¡ »ç¿ëÇÏ´Â ¿ø¸®´Â µ¿ÀÏÇÏÁö¸¸ ±¸Çö ¹æ¹ýÀº ½Ã½ºÅÛ¿¡ µû¶ó ´Ù¼Ò
    »óÀÌÇѵ¥, ÀϹÝÀûÀÎ *nix °è¿­ ¹× cisco °è¿­ ¶ó¿ìÅÍÀÇ °æ¿ì ¸ñÀûÁö ½Ã½ºÅÛÀÇ
    33434~38000 Æ÷Æ®·Î TTL °ªÀ» 1¾¿ ´Ã·Á°¡¸é¼­ udp ÆÐŶÀ» ¹ß¼ÛÇÏ¿©
    TTL °ªÀÇ ¸¸±â(expiration)·Î ÀÎÇÏ¿© µ¹¾Æ¿À´Â "ICMP time exceed"  ¸Þ½ÃÁö¸¦
    ÀÌ¿ëÇÕ´Ï´Ù.
    ¹Ý¸é Windows °è¿­ÀÇ tracert ´Â ¸ñÀûÁö ½Ã½ºÅÛ¿¡ TTL°ªÀ» 1¾¿ ´Ã·Á°¡¸é¼­
    ICMP echo request ÆÐŶÀ» ¹ß¼ÛÇÏ¿© ¿ª½Ã TTL °ªÀÇ ¸¸±â·Î µ¹¾Æ¿À´Â
    "ICMP time exceed" ¸Þ½ÃÁö¸¦ ÀÌ¿ëÇÕ´Ï´Ù.

    ¾Æ·¡´Â traceroute ¿Í tracert ÀÇ ÆÐŶÀ» ÀâÀº ¿¹ÀÔ´Ï´Ù.

    ## traceroute (udp ÀÌ¿ë)
    Tracer.com.62615 > target.com.33456:udp 12 (DF) (ttl 1)
    Router.com > tracer.com:icmp time exceed in-transit


    ±×·±µ¥, traceroute Áß°£ °æ·Î(hop)¿¡¼­ * (asterisk) °¡ º¸ÀÌ´Â °æ¿ì°¡ Àִµ¥,
    ´ÜÁö * ÀÌ º¸Àδٰí Çؼ­ ³×Æ®¿öÅ©¿¡ ¹®Á¦°¡ ÀÖ´Â °ÍÀº ¾Æ´Õ´Ï´Ù.
    Áï, °á·ÐÀûÀ¸·Î * ÀÌ º¸Àδٴ °ÍÀº ÇØ´ç hop À¸·ÎºÎÅÍ "ICMP time exceed" ¸¦
    ¹ÞÁö ¸øÇÏ¿´´Ù´Â ¶æÀε¥, ÀÌ´Â ´ÙÀ½°ú °°Àº ÀÌÀ¯°¡ ÀÖÀ» ¼ö Àֱ⠶§¹®ÀÔ´Ï´Ù.

    (1) °¡Àå ¸¹Àº °æ¿ì·Î ¶ó¿ìÅÍÀÇ °ü¸®ÀÚ°¡ º¸¾ÈµîÀÇ ÀÌÀ¯·Î
         ¿ÜºÎ¿¡¼­ÀÇ traceroute ¿äûÀ̳ª ÀÌ¿¡ ´ëÇÑ ÀÀ´äÀ» ÇÊÅ͸µÇÏ¿´±â
         ¶§¹®ÀÔ´Ï´Ù.

    (2) ½ÇÁ¦·Î ³×Æ®¿öÅ©ÀÇ °úºÎÇϵîÀ¸·Î traceroute ¿äûÆÐŶÀ̳ª
        ÀÀ´äÆÐŶÀÌ »ç¶óÁ³À» ¼öµµ Àֱ⠶§¹®ÀÔ´Ï´Ù.
        Åë»óÀûÀ¸·Î icmp ÆÐŶÀº ÆÐŶ ó¸® ¿ì¼±µµ Ãø¸é¿¡¼­ °¡Àå ³·°Ô
        µÇ¾î ÀÖ´Â °æ¿ì°¡ ÀÖ½À´Ï´Ù.


    º¸³»ÁֽŠ°á°úÀÇ °æ¿ì Áß°£ °æ·Î¿¡¼­¸¸ * °¡ Àá±ñ ³ªÅ¸³¯ »Ó ÀÌÈÄ °æ·Î¸¦ ÅëÇØ
    ÃÖÁ¾ ¸ñÀûÁö±îÁö µµÂøÇÏ¿´À¸¹Ç·Î (1)¹øÀÇ °æ¿ì¶ó°í ÃßÃøÇÒ ¼ö ÀÖ½À´Ï´Ù.

    Âü°í·Î traceroute ¿Í À¯»çÇÑ ´Ù¸¥ °æ·ÎÃßÀû ÇÁ·Î±×·¥µµ ¸¹Àºµ¥,
    whois ³ª AS Á¤º¸µî ºÎ°¡ ±â´ÉÀ» Á¦°øÇϸ鼭 ÃßÀû½Ã udp ³ª icmp ¸¦
    »ç¿ëÇÏÁö ¾Ê°í tcp ¸¦ »ç¿ëÇÏ´Â lft ¶ó´Â ÇÁ·Î±×·¥µµ ±ÇÀåÇÒ ¸¸ ÇÕ´Ï´Ù.
    http://www.mainnerve.com/lft/



    °¨»çÇÕ´Ï´Ù.

    ----- Original Message -----
    From: "À¯ ±âºÀ" <load_bong@hotmail.com>
    To: <sec-info@cert.certcc.or.kr>
    Sent: Friday, July 11, 2003 3:24 PM
    Subject: ³×Æ®¿öÅ© ÀÌ»ó ¿©ºÎ È®ÀÎ(traceroute)


    ¾È³çÇϼ¼¿ä?

    ¹®Àǵ帳´Ï´Ù.

    ¾Æ·¡¿Í °°ÀÌ ¶ß´Âµ¥.. ³×Æ®¿öÅ©¿¡ ÀÌ»óÀÌ ÀÖ´ÂÁö È®ÀκÎŹµå¸®°Ú½À´Ï´Ù.

    ÀúÈñ ÂÊ ³×Æ®¿öÅ©¿¡´Â ¹®Á¦°¡ ¾ø´Â°Í °°Àºµ¥..

    Àǽɽº·´³×¿ä..


    ----- ¾Æ ·¡ -----

    Router# traceroute 203.236.40.x

    Type escape sequence to abort.
    Tracing the route to 203.236.40.x

      1 knmbba36-s1-1-2.rt.bora.net (211.180.12.41) 0 msec 4 msec 4 msec
      2 210.120.48.61 4 msec 0 msec 4 msec
      3 210.92.194.21 4 msec 4 msec 4 msec
      4 210.120.192.205 4 msec 4 msec 4 msec
      5 211.60.216.38 4 msec 4 msec 4 msec
      6 203.236.0.70 4 msec 4 msec 4 msec
      7 211.115.4.2 4 msec 4 msec 4 msec
      8 192.168.23.50 8 msec 12 msec 4 msec
      9  *  *  *
    10 203.236.32.3 4 msec 8 msec 4 msec
    11 203.236.40.21 8 msec 8 msec 4 msec
    Router#


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