æ¬ãµã¤ãã«æ²è¼ããã¦ããæç« ãã¤ã©ã¹ãããã´ãåçãåç»ãæ¼ç¿ãã¡ã¤ã«ããã®ä»ã®ãã¹ã¦ã®æ å ±ã¯ãæ¬ãµã¤ãã¾ãã¯ç¬¬ä¸è ãèä½æ¨©ãæãã¦ããã¾ããæ¬ãµã¤ãã®å 容ãç ä¿®çã§å©ç¨ããå ´åã¯ãã¤ã³ã¹ãã©ã¯ã¿ã¼ã¨åè¬è ãæ¬ãµã¤ãã«ã¢ã¯ã»ã¹ãã¦é²è¦§ãããããé¡ãè´ãã¾ãã æ¬ãµã¤ããããã³é¢é£ãã¼ã¸ã®æ å ±ãããã¯å 容ããå©ç¨ããããã¨ã§ç´æ¥ã»éæ¥çã«çããæ失ã«é¢ãä¸å責任ãè² ããã®ã§ã¯ããã¾ãããç´°å¿ã®æ³¨æãæã£ã¦æ¬ãµã¤ãã«æ å ±ãæ²è¼ãã¦ããã¾ããããã®æ å ±ã®æ£ç¢ºæ§ããã³å®å ¨æ§ãä¿è¨¼ãããã®ã§ã¯ããã¾ãããäºåãªãã«ãæ¬ãµã¤ãã«æ²è¼ããã¦ããæ å ±ãå¤æ´ãããã¨ãããã¾ãã
2008å¹´12æ13æ¥11:52 ã¹ã¤ããã®åæå @ Cisco Catalyst 2960 ã«ãã´ãªciscoITæè¡ ã¹ã¤ããã®ãã¹ã¯ã¼ããå¿ãã¦ãã¾ããã°ã¤ã³ã§ããªããªã£ãå ´åã¯åæåãããã¨ã«ãªãã¾ããCatalyst 2960ã§ã¯ä»¥ä¸ã®æé ã§åæåã§ãã¾ãã2900XL/3500XLã2940ã2950/2955ã2970 ã·ãªã¼ãºã3550ã3560ã3750 ã·ãªã¼ãºãªã©ãã»ã¼åæ§ã®æé ã§åæåã§ããããã§ãã é»æºã±ã¼ãã«ãæãã¾ã ã·ãªã¢ã«ã³ã³ã½ã¼ã«ã«PCãç¹ããã¿ã¼ããã«ã½ãããç«ã¡ä¸ãã¦ããã¾ã ã¹ã¤ããã®modeãã¿ã³ãæ¼ãã£ã±ãªãã®ã¾ã¾é»æºãæå ¥ãã¾ã LED ããªã¬ã³ã¸è²ã®ç¹æ» ããç·è²ã®ç¹ç¯ã«å¤ãã£ãããMode ãã¿ã³ãæ¾ãã¾ã flash_initã³ãã³ããå®è¡ãã¾ã switch: flash_init load_helper ã³ãã³ããå®è¡ãã¾ã sw
Allied Telesis å®æ©æ¼ç¿â»åä½ç¢ºèªã¯ãCentreCOM8624XLã§ã®ã¿è¡ã£ã¦ããã¾ããå¤ãæ©ç¨®ã®ãããç¾è¡æ©ã§ã¯ã³ãã³ããç°ãªããã¨æãã¾ããããããç¾è¡æ©ã§ãé¡ä¼¼ç¹ãå¤ãã¨æãã¾ãã®ã§åèã«ãã¦ã¿ã¦ãã ããã詳細ã«ã¤ãã¦ã¯ã¢ã©ã¤ããã¬ã·ã¹ã®ãµã¤ãã§ãã確èªä¸ããã ï¼ç« ãåºæ¬è¨å®ãã¢ã©ã¤ããã¬ã·ã¹æ©å¨ã§ããè²·ãå¾ãªãããã¯ã¼ã¯æ©å¨ã¯ãã¬ã¤ã¤ã¼3ã¹ã¤ãããVPNã«å¯¾å¿ããã«ã¼ã¿ã§ããã³ã¹ãããã©ã¼ãã³ã¹ã«åªãã¦ãã¾ããããããããããã¯ã¼ã¯ã®åå¼·ãå§ãããã¨æã£ã¦ããæ¹ã«ãã¢ã©ã¤ããã¬ã·ã¹ã®æ©å¨ã¯ããªã¹ã¹ã¡ã§ããä¸å¤ãããªã¼ã¯ã·ã§ã³ã§å®ãè³¼å ¥ãããã¨ã§ãã¾ããåè½ã¡ããæ©ç¨®ãè¤æ°å°ãè³¼å ¥ãã¦å¦ç¿ã«æ´»ç¨ãã¦ã¿ã¾ãããã
âãã¤ããã㯠ããã¤ãããã¯ãã¯ãã¹ã¤ãããèªåã§å¦ç¿ããã¢ãã¬ã¹ã¿ã¤ãã§ãã âã¹ã¿ãã£ã㯠ãã¹ã¿ãã£ãã¯ãã¯ã管çè ãéçã«å®ç¾©ããã¢ãã¬ã¹ã¿ã¤ãã§ããMACã¢ãã¬ã¹ãç¹å®ã®VLANã«æå±ããã¤ã³ã¿ãã§ã¼ã¹ã«é¢é£ä»ãããå ´åã«æå®ãã¾ãã âã»ãã¥ã¢ ãã»ãã¥ã¢ãã¯ããã¹ã¿ãã£ãã¯ãã®ä¸ç¨®ã§ãã»ãã¥ãªãã£ãåä¸ãããå ´åã«ä½¿ç¨ããã¾ãããã¼ãã»ãã¥ãªãã£æ©è½ãç»é²ããMACã¢ãã¬ã¹ä»¥å¤ã®éä¿¡å MACã¢ãã¬ã¹ãæã¤ç«¯æ«ã®ãã¬ã¼ã ãç ´æ£ãããã¨ãã§ãã¾ãã Catalyst2950ã¹ã¤ããã§ãMACã¢ãã¬ã¹ãã¼ãã«ã確èªããã«ã¯ããshow mac-address-tableãã³ãã³ãã使ç¨ãã¾ãã Switch#show mac-address-table ããã§ã¯ãã¹ã¤ããã®ãf0/1ãã«PCãæ¥ç¶ãã¦ããshow mac-address-tableãã³ãã³ããå®è¡ãã¦ã¿ã¾ãããï¼
IPã§çµè·¯å¶å¾¡ãå®ç¾ããããã«ã¯ï¼ã¬ã¤ã¤ã¼3ã§ãã¦å ãå¤æããã«ã¼ã¿ã¼ãã¬ã¤ã¤ã¼3ã¹ã¤ããï¼L3ã¹ã¤ããï¼ã使ãã両è ã®åãã¯ã»ã¼åãã§ãããï¼L3ã¹ã¤ããã®ã»ãããããã¯ã¼ã¯ãè¨è¨ããã¨ãã®èªç±åº¦ã大ãããããããããã¯ã¼ã¯æ©å¨ã¯æå¤ã¨é害çãé«ããç¹ã«æè¿ã®L3ã¹ã¤ããã¯å®è£ å¯åº¦ãé«ããããå£ããçãé«ãããã ãå ·ä½çã«ã¯ï¼ç¹å®ã®ãã¼ãã ããæ©è½ããªãã¨ãã£ããã¨ããããããé害ãçºçããã¹ã¤ããã¯ããã交æããªããã°ãªããªãããã®ãããªä¸æ¸¬ã®äºæ ã«åãã¦ï¼å¤§äºãªæ©å¨ã¯åé·æ§æã«ãã¦ãããæ¹ãããã åé·æ§æãæ¡ãã¨ããã®ã¯ï¼2å°ä»¥ä¸ã®è£ ç½®ãè¨ç½®ãã¦ãããã®ãã¡ã®ã©ããä¸ã¤ã稼åãã¦ããã°éä¿¡ã§ããããã«ãããã¨ã§ãããå®ã¯ï¼L3ã¹ã¤ããã§åé·æ§æãä½ãã¨ï¼ã«ã¼ã¿ã¼ã®ä¸çã§ã¯æ°ã«ããªãã¦ããã£ããã¨ã«æ°ãé ããªããã°ãªããªããªãããã±ããã®ã«ã¼ãã§ãããä»åã¯ï¼ã«ã¼ãã¨ãã¾ãä»ãåãã
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}