ping¸í·É¾î¿¡¼­ TTL ÀǹÌ...

   Á¶È¸ 15739   Ãßõ 0    

안녕하세요

저번주에 Windows Server 2008교육을 들으면서 잠깐 Ping에대해서 들었는데, 자세히 못들어서 잊어버렸습니다.

그래서 구글링 검색결과 아래와 같이 설명을 했는데요.

The TTL is not something they "set".. When you ping an IP address or domain, ping.exe sends out IP packets that start out with a TTL number of 255. As one packet travels through IP routers throughout the Internet, its TTL decrements 1 for each router, so in your case, there are 255-243=12 IP routers between you and WHT.com. The ping from my box to WHT returns a TTL of 246.

And calling TTL a hop counter could be slightly misleading, since "hops" generally are refered to as a physical group of routers and switches, whereas the Time To Live shows you how many routers specifically the packet has gone through. A tracert on Windows to a remote IP or domain may show 10 hops, but a ping following the same path could return 30 "hops" (a TTL of 225). 

As for the limit, Windows ping sends out IP packets with 255 in order for you to diagnose network problems or similar. If the limit was l

ow the packet could "die" before it reached its destination, which is why its limit is maxed out with ping. Can't off the top of my head remember the different limits for ordinary packets on different platforms, but its probably 60 on Windows and I think even 30 on Solaris. 

But anyway, TTL is not a timer per se, its a life-time-timer if you will of the packet itself.


간략하게 보면은 핑명령어를 때리면 원격 서버에 255를 보내고, 중간에 라우터 수에 따라 하나씩 차감이 되어
돌아온다고 설명이 되어있습니다. 그런데 회사내 저희 라우터에 핑을 때리면 127이 나오네요. 라우터가 하나밖에 없는데 말이죠.

아무래도 TTL= Time To Live 가 말하는 숫자의 의미가 다른 뜻으로 있는것 같은데요.

TTL Code Table같은걸 알수 없을까요? 왜 구글링해도 시원한 답이 없을까요 흑흑

나중에 도움이 될것 같아서요 ^^

그럼 좋은하루 되세요 ^^
ªÀº±Û Àϼö·Ï ½ÅÁßÇÏ°Ô.
Àü±ÙÇö 2011-02
¾Æ ½Ç¼öÇß½À´Ï´Ù. Á¦°¡ ÇÎ ÁÖ¼Ò¸¦ Àß ¸ø ³Ö¾ú³×¿ä. 127ÀÌ ³ª¿À´Â°Ô ¾Æ´Ï¶ó 254°¡ ¸Â½À´Ï´Ù. ^^
Ȥ½Ã³ª ´Ù¸¥ Àǹ̰¡ ÀÖÀ¸½Ã¸é Á» ¾Ë·ÁÁÖ¼¼¿ä ^^
ÀÌÇöÈ£K 2011-02
¿ì¾ß³ë 2011-02
TTL 20¼¼....Á˼ÛÇÕ´Ï´Ù. Àü ¾ÆÁ÷ TTL¼¼´ë ÀÔ´Ï´Ù.(ÀÀ?)
¼ÕÁöȲ 2011-02
windows ±â¹Ý°ú linux ±â¹ÝÀÇ ttl Ãʱ⠰ªÀº ´Ù¸¥°É·Î ¾Ë°í ÀÖ½À´Ï´Ù.
À̸¦ ±â¹ÝÀ¸·Î lan°ú °°Àº ³×Æ®¿öÅ© ȯ°æ¿¡¼± ÇØ´ç pc°¡ linux±â¹ÝÀÎÁö windows ±â¹ÝÀÎÁöµµ ÃßÁ¤ÇÒ ¼ö ÀÖ½À´Ï´Ù.
¸¶Âù°¡Áö·Î device¸¶´Ù Ãʱâ ttl°ªÀÌ ´Ù¸¦ ¼ö ÀÖ°ÚÁÒ. router¿Í °°Àº Àåºñµµ os°¡ Á¸ÀçÇϴϱñ¿ä.
     
±è½ÂÈÆ1 2011-02
¸Â½À´Ï´Ù. ´Ù¸¨´Ï´Ù. ±×¸®°í Á¶Á¤µµ °¡´ÉÇÕ´Ï´Ù.
Àü±ÙÇö 2011-02
¼ÕÁöȲ´Ô ¸Â½À´Ï´Ù!! ÇÎÀ¸·Î ¸®´ª½ºÀÎÁö À©µµ¿ìÀÎÁö ¾Ë¼ö ÀÖ´Ù°í Çß¾î¿ä °­»ç´Ô²²¼­!!!

¾Æ ÀÌÁ¦ ±â¾ïÀ̳ª³×¿ä ÈæÈæ

ÀÌÇöÈ£´Ô ¸µÅ© °¨»çÇÕ´Ï´Ù. ^^

¾Æ ±è½ÂÈÆ´Ô Á¶Á¤µµ °¡´ÉÇϳª¿ä? ¸í·É¾î Çѹø ºÁ¾ß°Ú³×¿ä µµ¿ò¸» ÈæÈæ


QnA
Á¦¸ñPage 5566/5691
2015-12   1551939   ¹é¸Þ°¡
2014-05   5016484   Á¤ÀºÁØ1
2013-10   15737   ȲÀ籤
2013-08   15739   shuni
2018-09   15739   ¹«¾Æ
2013-04   15740   GoodWolf
2011-02   15740   Àü±ÙÇö
2009-12   15743   ±è°Ç¿ì
2002-06   15744   ¹ÚÇÊÈ­
2011-07   15747   ´Þ±¤ÀÌ
2002-06   15747   ±è°æ¶ô
2014-09   15748   °Ü¿ï³ª¹«
2017-01   15749   ½Öcpu
2011-08   15750   Àü±ÙÇö
2002-09   15751   Á¤ÀºÁØ
2013-11   15753   Nicoffeine
2020-06   15754   ³Ä¹Ì³Ä¹Ì
2014-08   15755   Sunrise
2002-06   15757   ¹Ú¹Î¼ö
2002-05   15759   ±èµ¿·ü
2014-06   15768   nQÀ̼ººÀ
2014-11   15769   ³ª¿ì¸¶Å©