¢£Á´ÈÌ
¡¦²áµîÌä¤Ç¤ÏSNMP¤Ë´Ø¤·¤Æ¡¢¡ÖTCP/IP¤Î´Ä¶­¤Ç»ÈÍѤµ¤ì¤ë¥×¥í¥È¥³¥ë¤Î¤¦¤Á¡¢¹½À®µ¡´ï¤ä¾ã³²»þ¤Î¾ðÊó¼ý½¸¤ò¹Ô¤¦¤¿¤á¤Ë»ÈÍѤµ¤ì¤ë¥Í¥Ã¥È¥ï¡¼¥¯´ÉÍý¥×¥í¥È¥³¥ë¡ÊH20½©AP¸áÁ°-Ìä60¡Ë¡×¤È½Ò¤Ù¤Æ¤¤¤ë¡£
¡¦UDP161¤È162¤ò»È¤¦¡£
¡¦¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤Ï¡¢ÆÃ¤Ë°Õ¿Þ¤¬¤Ê¤±¤ì¤Ð¡Ö°ìÈÌÂç½°¡×¤ò°ÕÌ£¤¹¤ë¡Öpublic¡×¤¬ÀßÄꤵ¤ì¤Þ¤¹¡£¤·¤«¤·¡¢¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤Ï¡¢µ¡´ï¤ò¥°¥ë¡¼¥×²½¤¹¤ë°ÕÌ£¤Ë²Ã¤¨¡¢´Ê°×¤Êǧ¾Ú¡Ê¥Ñ¥¹¥ï¡¼¥É¡Ë¤È¤·¤Æ¤Î°ÕÌ£¤ò»ý¤Á¤Þ¤¹¡£¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤¬°ìÃפ·¤Ê¤±¤ì¤Ð¡¢¾ðÊó¤Î¤ä¤ê¼è¤ê¤¬¤Ç¤­¤Þ¤»¤ó¡£¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤Ï°Å¹æ²½¤µ¤ì¤º¤Ëή¤ì¤ë¤Î¤Ç¡¢¥»¥­¥å¥ê¥Æ¥£¤Î¶¯Å٤϶¯¤¯¤¢¤ê¤Þ¤»¤ó¡£¤Ç¤¹¤¬¡¢public¤Ç¤Ï¤Ê¤¤Êý¤¬Â¿¾¯¤Ê¤ê¤È¤â°ÂÁ´¤È¸À¤¨¤Þ¤¹¡£
²áµîÌä¡ÊH23NW¸á¸å1Ìä3¡Ë¤ò¸«¤Æ¤ß¤è¤¦¡£
¡¦´Æ»ëÂоݤȤʤ뵡´ï¤Ï¡¤SNMP v1/v2c Âбþ¤Îµ¡´ï¤òƳÆþ¤¹¤ë¡£´Æ»ë¤ÎÂоÝÈϰϤˡΡ¡¥«¡¡¡Ï̾¤òÉÕ¤±¡¤´Æ»ëSV¤¬¤³¤ì¤ò»ØÄꤷ¤Æ¡¤Âоݵ¡´ï¤ËÌ䤤¹ç¤ï¤»¤ë¡£
¢­
¢­
¢­
¢­
¢­
¡ÎÀµ²ò¡Ï
¥«¡§¥³¥ß¥å¥Ë¥Æ¥£

¤â¤¦°ìÌä¡ÊH30NW¸á¸å1Ìä2¡Ë¡£¤³¤Á¤é¤âÀµ²ò¤Ï¡Ö¥³¥ß¥å¥Ë¥Æ¥£¡×¡£
SNMP¥¨¡¼¥¸¥§¥ó¥È¤ÈSNMP¥Þ¥Í¡¼¥¸¥ã¤Ï¡¤Æ±¤¸¥°¥ë¡¼¥×¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹[ ¥¨ ]¤òÍѤ¤¤Æ¡¤µ¡´ï¤Î´ÉÍý¾ðÊó¡Ê°Ê²¼¡¤MIB¤È¤¤¤¦¡Ë¤ò¶¦Í­¤¹¤ë¡£

¡¦Trap¤È¥Ý¡¼¥ê¥ó¥°¤ÏÀäÂФ˳Ф¨¤Þ¤·¤ç¤¦¡£¢¨²áµîÌä¡ÊH23¸á¸å­µÌä1¡Ë¤Ç¤Ï¡¢·êËä¤á¤ÇTrap¤¬Ìä¤ï¤ì¤¿¡£²òÅúÎã¤Ï¡¢ºÇ½é¤ÎT¤¬Âçʸ»ú¤Ç¡ÖTrap¡×¡Ë


snmp
¡¦trap¤Ë´Ø¤·¤Æ²áµîÌä¤Ç¤Ï¡¢¡Ö¥Í¥Ã¥È¥ï¡¼¥¯´ÉÍý¥×¥í¥È¥³¥ë¤Ç¤¢¤ëSNMP¥Ð¡¼¥¸¥ç¥ó1¤Î¥á¥Ã¥»¡¼¥¸¥¿¥¤¥×¤Î¤¦¤Á¡¢°Û¾ï¤ä»ö¾Ý¤ÎȯÀ¸¤ò¼«È¯Åª¤Ë¥¨¡¼¥¸¥§¥ó¥È¼«¿È¤¬¥Þ¥Í¡¼¥¸¥ã¤ËÃΤ餻¤ë¤¿¤á¤Ë»ÈÍѤ¹¤ë¤â¤Î(H21NW¸áÁ°2-17)¡×¤È½Ò¤Ù¤é¤ì¤Æ¤¤¤Þ¤¹¡£
¡¦Simple¤È¤¤¤¦Ì¾¤Î¤È¤ª¤ê¡¢¥×¥í¥È¥³¥ë¤Ïñ½ã¤Ç¤¢¤ë¡£SNMP¥Þ¥Í¡¼¥¸¥ã¤ÈSNMP¥¨¡¼¥¸¥§¥ó¥È´Ö¤Î¥á¥Ã¥»¡¼¥¸¤Î¼ïÎà¤Ï6¤Ä¤·¤«¤Ê¤¤¡£
¡¦µ¡´ï¦¤Ç¤ÏMIB¡ÊManagement Information Base)¤È¤¤¤¦¥Ä¥ê¡¼¹½Â¤¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤ò»ý¤Ã¤Æ¡¢Ì䤤¤«¤±¤ËÂФ·¤ÆÅú¤¨¤ë¤À¤±¤È¤¤¤¦¥·¥ó¥×¥ë¤Êư¤­¤Ç¤¢¤ë¡£»ÅÁȤߤ¬´Êñ¤Ê¤Î¤Ç¡¢°Â²Á¤ÊSwitch¤Ê¤É¤Ç¤âSNMPµ¡Ç½¤òÍ­¤¹¤ë¤³¤È¤¬Â¿¤¤¡£
¡¦¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥ÈSwitch¤äSNMPÂбþSwitch¤È½ñ¤«¤ì¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï¡¢SNMP¤Î¾ðÊó¤ò»ý¤Ä¤³¤È¤Ç¡¢¥¹¥Æ¡¼¥¿¥¹¾ðÊó¤ò¥Þ¥Í¡¼¥¸¥ã¤È¤ä¤ê¤È¤ê¤Ç¤­¤ë¡£

¢¡SNMP¤Î¥á¥Ã¥»¡¼¥¸
¥·¥ó¥×¥ë¤È¸À¤ï¤ì¤ë¤À¤±¤¢¤Ã¤Æ¡¢¤ï¤º¤«5¼ï¤Î¥á¥Ã¥»¡¼¥¸¤·¤«¤Ê¤¤
1)Get-Request
2)Get-Next-Request
3)Get-Response
4)Set-Request
5)Trap

¢£¥Ð¡¼¥¸¥ç¥ó
SNMP¤Î¥Ð¡¼¥¸¥ç¥ó¤Ë¤Ï¡¢Â礭¤¯SNMPv1¡¢SNMPv2c¡¢SNMPv3¤Î3¤Ä¤¬¤¢¤ê¡¢¥Ð¡¼¥¸¥ç¥ó¤¬¾å¤¬¤ë¤Ë¤Ä¤ì¤Æµ¡Ç½¤¬³ÈÄ¥¤·¡¢SNMP¤Î¥á¥Ã¥»¡¼¥¸¤Î¥Õ¥©¡¼¥Þ¥Ã¥È¤â°Û¤Ê¤ê¤Þ¤¹¡£
¤¿¤È¤¨¤Ð¡¢v3¤Ç¤Ïʿʸ¤Î¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤òÇѻߤ·¤ÆÇ§¾Ú¤ò¶¯²½¤·¤Æ¤¤¤Þ¤¹¡£
¸½ºß¤Ç¤â¹­¤¯ÉáµÚ¤·¤Æ¤¤¤ë¤Î¤ÏSNMPv2c¤Ç¤¹¡£
¥Ð¡¼¥¸¥ç¥ó¤Î°ã¤¤¤Ë¤è¤ëµ¡Ç½º¹¤Ï³Ð¤¨¤ëɬÍפϤ¢¤ê¤Þ¤»¤ó¡£SNMP¤Î´ðËܵ¡Ç½¤À¤±¤ò¤·¤Ã¤«¤ê³Ð¤¨¤Æ¤ª¤­¤Þ¤·¤ç¤¦¡£
»²¹Í¤Ç¤¹¤¬¡¢SNMPv2¤Ï¥»¥­¥å¥ê¥Æ¥£µ¡Ç½¤¬¼Â¾ð¤Ë¨¤·¤Æ¤¤¤Ê¤«¤Ã¤¿¤Î¤Ç¡¢v1¤ÈƱÍͤΥ³¥ß¥å¥Ë¥Æ¥£Ì¾¤Ç¤Î´Ê°×ǧ¾Ú¤ËÊѹ¹¤·¤Þ¤·¤¿¡£¤½¤ì°Ê³°¤Ïv2¤Î»ÅÍͤǤ¢¤Ã¤¿¤¿¤á¡¢Community-based SNMPv2¤È¤·¤Æ¡¢SNMPv2c¤È¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£
¡¦v2¤Ë¤è¤ë²þÎÉÅÀ¤Ï¡¢GetBulkRequest¤Ë¤è¤ëÊ£¿ô°ì³ç¤Î½èÍý¤Ê¤É
¡¦³Æ¥Ð¡¼¥¸¥ç¥ó¤Ç¤Î¸ß´¹À­¤Ï¡¢ÉôʬŪ¤Ë¤Ï¤¢¤ë¤¬¡¢¡¦¡¦¡¦¤È¤¤¤¦¥ì¥Ù¥ë
¡¦v3¤Ç¤Ï¥»¥­¥å¥ê¥Æ¥£¤¬¶¯²½¤µ¤ì¤Æ¤ª¤ê¡¢¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤Ç¤Ï¤Ê¤¯USM¤ò»È¤¦

¢£MIB
¡¦´ÉÍý¾ðÊó¤òMIB¤È¸Æ¤Ð¤ì¤ë¥Ç¡¼¥¿¥Ù¡¼¥¹¤ËÊݸ¤¹¤ë¡£
¡¦³ÈÄ¥MIB¡Ê¤Þ¤¿¤ÏPrivateMIB¤À¤È¤ª¤â¤¦¡Ë¤Ë¤è¤ê¡¢ÆÈ¼«¤Î´ÉÍý¤¬¤Ç¤­¤ë¡£
¡¦MIB1¤Ï144¼ï¡¢MIB2¤Ï171¼ï¤Î¥ª¥Ö¥¸¥§¥¯¥È¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£³Æ¥ª¥Ö¥¸¥§¥¯¥È¤ÏOID¡ÊObjectID¡Ë¤Ç¼±Ê̤µ¤ì¤ë¡£MIB2¤ÏMIB1¤ËÂФ·¤Æ²¼Êý¸ß´¹¤¬¤¢¤ë¡£

¢£MIB¤ò¼ÂºÝ¤Ë¤ß¤Æ¤ß¤è¤¦¡£
Catalyst¤ÎMIB¤òSNMP¥µ¡¼¥Ð¤«¤éÇÁ¤¤¤Æ¤ß¤Þ¤·¤ç¤¦¡£
¤Þ¤º¡¢Catalyst¤Ë¤Æ¡¢SNMP¤Î¥Ý¡¼¥ê¥ó¥°¤ò¼õ¤±ÉÕ¤±¤ëÀßÄê¤ò¤·¤Þ¤¹¡£

Switch(config)#snmp-server community public

¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤òpublic¤Ë¤·¤Þ¤·¤¿¡£
¤Þ¤¿¡¢IF¤ÎID¤ò³Îǧ¤·¤Þ¤¹¡£

Switch#show snmp mib ifmib ifindex
FastEthernet0/1: Ifindex = 10001
FastEthernet0/2: Ifindex = 10002
FastEthernet0/3: Ifindex = 10003
FastEthernet0/4: Ifindex = 10004
FastEthernet0/5: Ifindex = 10005
FastEthernet0/6: Ifindex = 10006
FastEthernet0/7: Ifindex = 10007
FastEthernet0/8: Ifindex = 10008
GigabitEthernet0/1: Ifindex = 10101
Null0: Ifindex = 10501
Vlan1: Ifindex = 1
Switch#

¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤ÎOID¤Ï¥Ä¥ê¡¼¹½Â¤¤Ç¡¢.1.3.6.1.2.1.2.2.1.¤Ë¸ºß¤·¤Þ¤¹¡£
¤Ç¤Ï¡¢½ç¤Ë³Îǧ¤·¤Æ¤¤¤­¤Þ¤·¤ç¤¦¡£
SNMP¤Î´ÉÍý¥½¥Õ¥È¤¬¤¢¤ì¤Ð¸«¤ä¤¹¤¤¤Ç¤·¤ç¤¦¤¬¡¢¤³¤³¤Ç¤ÏLinux¥µ¡¼¥Ð¤Ç¡¢snmpget¥³¥Þ¥ó¥É¤Ç´Êñ¤Ë¼Â¹Ô¤·¤Þ¤¹¡£
¢¨snmpget¥³¥Þ¥ó¥É¤Ï¡¢É¬Íפ˱þ¤¸¤Æ# yum install net-snmp-utils ¤Ê¤É¤Ç¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤¯¤À¤µ¤¤¡£

¡Ê£±¡ËIF¤ÎÀâÌÀ
#snmpget -v2c -c public 192.168.0.10 .1.3.6.1.2.1.2.2.1.2.10001
IF-MIB::ifDescr.10001 = STRING: FastEthernet0/1
¢ªIF¤¬FastEthernet0/1¤Ç¤¢¤ë¤³¤È¤¬¤ï¤«¤ê¤Þ¤¹¡£
¡Ê£²¡ËIF¤Î¥¹¥Ô¡¼¥É
#snmpget -v2c -c public 192.168.0.10 .1.3.6.1.2.1.2.2.1.5.10001
IF-MIB::ifSpeed.10001 = Gauge32: 10000000
¢ªIF¤Î¥¹¥Ô¡¼¥É¤¬10000000¡Ê=10Mbps¡Ë¤Ç¤¢¤ë¤³¤È¤¬¤ï¤«¤ê¤Þ¤¹¡£
¡Ê£³¡ËIF¤Î¾õÂÖ
#snmpget -v2c -c public 192.168.0.10 .1.3.6.1.2.1.2.2.1.8.10001
IF-MIB::ifOperStatus.10001 = INTEGER: down(2)
¢ªIF¤Î¾õÂÖ¤¬down¤Ç¤¢¤ë¤³¤È¤¬¤ï¤«¤ê¤Þ¤¹¡£
UP¤·¤Æ¤¤¤ì¤Ð¡¢up(1)¤Èɽ¼¨¤µ¤ì¤Þ¤¹¡£

¡Ê£´¡ËÄÌ¿®ÎÌ
ÄÌ¿®Î̤ò¸«¤ë¤Ë¤Ï¡¢ifHCInOctets¡Ê¼õ¿®¤·¤¿¥Ð¥¤¥È¿ô¡Ë¤ÈifHCOutOctets¡ÊÁ÷¿®¤·¤¿¥Ð¥¤¥È¿ô¡Ë¤ò¼èÆÀ¤·¤Þ¤¹¡£snmpget¥³¥Þ¥ó¥É¤Ë¤Æ¡¢¥¹¥¤¥Ã¥Á¤ÎIP¥¢¥É¥ì¥¹¡Ê10.1.1.100¡Ë¤ò»ØÄꤷ¡¢¥¹¥¤¥Ã¥Á¤Î4È֥ݡ¼¥È¤ÎifHCInOctets¤ò¼èÆÀ¤·¤Þ¤¹¡£¤³¤Î¤¢¤¿¤ê¤ÏÃΤé¤Ê¤¯¤Æ¤¤¤¤¤Î¤Ç¡¢Ê·°Ïµ¤¤À¤±Ì£¤ï¤Ã¤Æ¤¯¤À¤µ¤¤¡£ifHCInOctets¤ÎOID¤Ï.1.3.6.1.2.1.31.1.1.1.6.x¤Ç¤·¤Æ¡¢ºÇ¸å¤Îx¤ËIF¤ÎÈÖ¹æ10004¤ò»ØÄꤷ¤Þ¤¹¡£

# snmpget -v2c -c public 10.1.1.100 .1.3.6.1.2.1.31.1.1.1.6.10004
¡¡
¤½¤Î·ë²Ì¡¢°Ê²¼¤Î¤è¤¦¤Ë¡¢¥Ð¥¤¥È¿ô¤Î¥«¥¦¥ó¥¿¤¬É½¼¨¤µ¤ì¤Þ¤¹¡£
IF-MIB::ifHCInOctets.10004 = Counter64: 20008082

¢¡RMON(Remote Network Monitoring)
Remote¤È¤¤¤¦¸ÀÍդΤȤª¤ê¡¢±ó³Ö¤«¤é´Æ»ë¤¹¤ë¡£SNMP¤ò³ÈÄ¥¤·¤Æ¤¤¤ë¡£
MIB¤Ï¤¢¤ë°ìÅÀ¤Î¾ðÊó¤òɽ¼¨¤¹¤ë¤Î¤ËÂФ·¡¢RMON¤Ç¤ÏÅÀ¤òÀþ¤Ë¤·¤Æ´Æ»ë¤¹¤ë¡£¤½¤Î·ë²Ì¡¢¥Í¥Ã¥È¥ï¡¼¥¯¤Î»ÈÍÑΨ¤Ê¤É¤â´ÉÍý¤Ç¤­¤ë¡£
RMON1¤Ï¥ì¥¤¥ä2¤Î¾ðÊó¡¢RMON2¤Ï¥ì¥¤¥ä3°Ê¾å¤Î¾ðÊó¤ò»ý¤Ä¡£

¢¡²áµîÌä¤è¤ê
²áµîÌä¤Ç¡¢SNMP¤òÍý²ò¤¹¤ë¤ËÁê±þ¤·¤¤½ÐÂ꤬¤¢¤ë¤Î¤Ç¾Ò²ð¤¹¤ë¡£Àµ²ò°Ê³°¤ÎÁªÂò»è¤Ë¤Ä¤¤¤Æ¤â¡¢¤Ê¤¼´Ö°ã¤Ã¤Æ¤¤¤ë¤«¤òÍý²ò¤·¤Æ¤Û¤·¤¤¡£
¡ÚH18NW¸áÁ°¡¡Ìä45¡Û
TCP/IP¤Ë¤ª¤±¤ë¥Í¥Ã¥È¥ï¡¼¥¯´ÉÍý¥×¥í¥È¥³¥ë¤Ç¤¢¤ëSNMP¤Ë´Ø¤¹¤ëµ­½Ò¤Î¤¦¤Á¡¢Å¬Àڤʤâ¤Î¤Ï¤É¤ì¤«¡£
 
¥¢¡¡SNMP¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¥á¥Ã¥»¡¼¥¸¤Ï¡¢¥Þ¥Í¡¼¥¸¥ã¤«¤é¤ÎÍ×µá¤ËÂФ·¤Æ¥¨¡¼¥¸¥§¥ó¥È¤¬±þÅú¤¹¤ë·Á¼°¤Î¤â¤Î¤À¤±¤Ç¤¢¤ë¡£
¥¤¡¡SNMP¤Ï¡¢UDP¤òÍѤ¤¤Æ¤¤¤ë¡£
¥¦¡¡¥¨¡¼¥¸¥§¥ó¥È¤«¤é¤Î¤¹¤Ù¤Æ¤Î¥á¥Ã¥»¡¼¥¸¤Ï¡¢¥Þ¥Í¡¼¥¸¥ã¤ÎƱ°ì¥Ý¡¼¥È¤ËÁ÷¤é¤ì¤ë¡£
¥¨¡¡¥Þ¥Í¡¼¥¸¥ã¤¬¥¨¡¼¥¸¥§¥ó¥È¤Ë¥¢¥¯¥»¥¹¤¹¤ë´ÉÍý¾ðÊó¤Î¥Ç¡¼¥¿¥Ù¡¼¥¹¤Ï¡¢RDB¤È¸Æ¤Ð¤ì¤ë¡£
¢­
¢­
¢­
¢­
¢­
Àµ²ò¡§¥¤

¢¡SNMP¤Î²áµîÌä
H16NW¸á¸å­µÌä2¤ò¤ß¤Æ¤ß¤è¤¦
´ÉÍý¥µ¡¼¥Ð¤Ç¤Î´Æ»ë¤Ë¤Ï,ping¤ÈSNMP¤ò»ÈÍѤ·¤Æ¤¤¤ë¡£
C·¯:ping¤âSNMP¤âʹ¤¤¤¿¤³¤È¤Ï¤¢¤ê¤Þ¤¹¤¬,¾Ü¤·¤¤¤³¤È¤Ïʬ¤«¤ê¤Þ¤»¤ó¡£
B»á:¤½¤ì¤Ç¤Ï,PC¤ò»È¤Ã¤Æ,ping¤Î»ÅÁȤߤòÀâÌÀ¤·¤è¤¦¡£¤³¤Î¤è¤¦¤Ë,ping¥³¥Þ¥ó¥É¤ò¿ÍÎϤ¹¤ë¤È,¤¢¤ÆÀè¤ËICMP¤Î[  a  ]Í×µá¥á¥Ã¥»¡¼¥¸¤¬Á÷¿®¤µ¤ì¤ë¡£¤½¤ì¤ËÂФ¹¤ë±þÅú¥á¥Ã¥»¡¼¥¸¤ò¼õ¿®¤¹¤ë¤³¤È¤Ç,¤¢¤ÆÀè¤È¤Ê¤Ã¤¿µ¡´ï¤¬¥Í¥Ã¥È¥ï¡¼¥¯¤ËÀܳ¤µ¤ì¤Æ¤¤¤ë¤È¸«¤Ê¤¹¤³¤È¤¬¤Ç¤­¤ë¡£
C·¯:¤½¤¦¤Ç¤·¤¿¤«¡£
B»á:¤µ¤Æ,¥Í¥Ã¥È¥ï¡¼¥¯µ¡´ï¤ä¥µ¡¼¥Ð¤Î´Æ»ë¤Ï,ping¤Ë¤è¤ë³Îǧ¤À¤±¤Ç¤Ï½½Ê¬¤Ç¤Ï¤Ê¤¤¡£¥µ¡¼¥Ð¤ÎCPU¤ä¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Î»ÈÍÑΨ,¥Í¥Ã¥È¥ï¡¼¥¯µ¡´ï¤Î¥È¥é¥Õ¥£¥Ã¥¯¤ä¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Î¾õ¶·¤â¸«¤¿¤¤¤È¤­¤¬¤¢¤ë¡£¤³¤Î¤è¤¦¤ÊÍ×µá¤ËÂбþ¤Ç¤­¤ë¤Î¤¬,  SNMP¤È¤¤¤¦¤ï¤±¤À¡£
C·¯:SNMP¤Ï,Æñ¤·¤¤¤Î¤Ç¤¹¤«¡£
B»á:±ü¤Ï¿¼¤¤¤±¤ì¤É,´Êñ¤Ê»ÅÁȤߤÀ¤è¡£SNMPµ¡Ç½ÅëºÜ¤Îµ¡´ï¤Ï,¥¨¡¼¥¸¥§¥ó¥È¤È¸Æ¤Ð¤ì,¤½¤ì¤ò´ÉÍý¤¹¤ë¥Þ¥Í¡¼¥¸¥ã¤ÈÂÐ¤Ë¤Ê¤Ã¤ÆÆ°ºî¤¹¤ë¡£¥Þ¥Í¡¼¥¸¥ä¤Ï,¥¨¡¼¥¸¥§¥ó¥È¤ËÂФ·¤Æ,¾ðÊó¼ý½¸¤äÀßÄêÊѹ¹¤ÎÍ×µá¤ò½Ð¤¹¡£¾ðÊó¼ý½¸¤Ë¤ÏgetÍ×µá,ÀßÄêÊѹ¹¤Ë¤Ï[¡¡b¡¡]Í׵᤬»È¤ï¤ì¤ë¡£¤µ¤é¤Ë,¥¨¡¼¥¸¥§¥ó¥È¤«¤é¥Þ¥Í¡¼¥¸¥ä¤ËÄÌÃΤµ¤ì¤ë[¡¡c¡¡]¤¬¤¢¤ë¡£getÍ×µá¤Î¥°¥ë¡¼¥×¤Ë¤Ï,³¬ÁØÅª¤Ë¼¡¤Î¥ª¥Ö¥¸¥§¥¯¥È¤Î¾ðÊó¤ò¼èÆÀ¤¹¤ëget-[¡¡d¡¡]Í׵᤬¤¢¤ë¡£SNMP¤Ç´ÉÍý¤µ¤ì¤ë¥¨¡¼¥¸¥§¥ó¥È¤¬¤â¤Ä¾ðÊóÄêµÁ¤Î¤³¤È¤ò,[¡¡e¡¡]¤È¤¤¤¦¡£
C·¯:¾ã³²¤Î¸¡ÃΤË,[¡¡c¡¡]¤¬»È¤ï¤ì¤ë¤Î¤Ç¤¹¤Í¡£
B»á:¤½¤Î¤È¤ª¤ê¡£¤è¤¯Ê¬¤«¤Ã¤¿¤Í¡£¤½¤·¤Æ,¾ã³²¤ò¸¡ÃΤ¹¤ë¤È,´ÉÍý¥µ¡¼¥Ð¤ËÅëºÜ¤µ¤ì¤Æ¤¤¤ë¥Þ¥Í¡¼¥¸¥ã¥½¥Õ¥È¤Îµ¡Ç½¤Ç,¥³¥Þ¥ó¥É¤òÅê¿Í¤·¤¿¤ê,¥á¡¼¥ë¤òÁ÷¿®¤·¤¿¤ê¤¹¤ë¡£½ÅÂç¤Ê¾ã³²¤¬È¯À¸¤·¤¿¾ì¹ç¤Ë¤Ï,»ä¤Î·ÈÂÓÅÅÏ䢤Ƥ˥᡼¥ë¤òÁ÷¿®¤¹¤ëÀßÄê¤Ë¤·¤Æ¤¤¤ë
¢­
¢­
¢­
¢­
¢­
Àµ²ò¡§
a¡§¥¨¥³¡¼
b¡§set
c¡§trap
d¡§next
e¡§MIB

¢£°ã¤¦²áµîÌä
²áµîÌä¡ÊH30NW¸á¸å­µÌä2¡Ë¤Ë¤Ï¡¢°Ê²¼¤Îµ­ºÜ¤¬¤¢¤ê¤Þ¤¹¡£
SNMP¤Ïµ¡´ï¤ò´ÉÍý¤¹¤ë¤¿¤á¤Î¥×¥í¥È¥³¥ë¤Ç¡¤­¦SNMP¥¨¡¼¥¸¥§¥ó¥È¤ÈSNMP¥Þ¥Í¡¼¥¸¥ã¤Ç¹½À®¤µ¤ì¤ë¡£SNMP¥¨¡¼¥¸¥§¥ó¥È¤ÈSNMP¥Þ¥Í¡¼¥¸¥ã¤Ï¡¤Æ±¤¸¥°¥ë¡¼¥×¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹¡Ú¡¡¥¨¡§¥³¥ß¥å¥Ë¥Æ¥£¡¡¡Û¤òÍѤ¤¤Æ¡¤µ¡´ï¤Î´ÉÍý¾ðÊó¡Ê°Ê²¼¡¤MIB¤È¤¤¤¦¡Ë¤ò¶¦Í­¤¹¤ë¡£
¡¡SNMP¤Î´ðËÜÆ°ºî¤È¤·¤Æ¡¤¥Ý¡¼¥ê¥ó¥°¤È¥È¥é¥Ã¥×¤¬¤¢¤ë¡£¥Ý¡¼¥ê¥ó¥°¤Ï¡¤SNMP¥Þ¥Í¡¼¥¸¥ã¤¬¡¤SNMP¥¨¡¼¥¸¥§¥ó¥È¤ËÂФ·¤Æ¡¤Î㤨¤Ð5ʬ¤´¤È¤È¤¤¤Ã¤¿Äê´üŪ¤ËMIB¤ÎÌä¹ç¤»¤ò¹Ô¤¦¤³¤È¤Ë¤è¤Ã¤Æ¡¤µ¡´ï¤Î¾õÂÖ¤ò¼èÆÀ¤Ç¤­¤ë¡£°ìÊý¡¤¥È¥é¥Ã¥×¤Ï¡¤MIB¤ËÊѲ½¤¬µ¯¤­¤¿ºÝ¤Ë¡¤SNMP¥¨¡¼¥¸¥§¥ó¥È¤¬Ä¾¤Á¤Ë¥á¥Ã¥»¡¼¥¸¤òÁ÷¿®¤·¡¤SNMP¥Þ¥Í¡¼¥¸¥ã¤¬¥á¥Ã¥»¡¼¥¸¤ò¼õ¿®¤¹¤ë¤³¤È¤Ë¤è¤Ã¤Æ¡¤µ¡´ï¤Î¾õÂÖ¤ò¼èÆÀ¤Ç¤­¤ë¡£

¢£Catalyst¤Ç¤ÎSNMP¤ÎÀßÄê
Catalyst¥¹¥¤¥Ã¥Á¤ËSNMP¤ÎÀßÄê¤ò¤·¤Æ¤ß¤Þ¤¹¡£ÀßÄê¤ò³Îǧ¤·¤Ê¤¬¤é¡¢SNMP¤Ë´Ø¤¹¤ëÍý²ò¤òËĤé¤Þ¤»¤Æ¤¯¤À¤µ¤¤¡£
Switch(config)#snmp-server community a_sha_community ro
Switch(config)#snmp-server enable traps
Switch(config)#snmp-server host 10.1.100.99 a_sha_community
1¹ÔÌܤϡ¢SNMP¤Î¥Ý¡¼¥ê¥ó¥°¤ÎÀßÄê¤Ç¤¹¡£¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤È¤·¤Æ¡¢¡Öa_sha_community¡×¤òÀßÄꤷ¤Þ¤·¤¿¡£¤½¤Î¤¢¤È¤Ë¤¢¤ëro¤ÏRead Only¤È¤¦°ÕÌ£¤Ç¡¢SNMP¥Þ¥Í¡¼¥¸¥ã¤«¤é¤ÏÆÉ¼èÀìÍѤȤ¤¤¦°ÕÌ£¤Ç¤¹¡£¡ÊÆÉ¤ß½ñ¤­²Äǽ¤Êrw¤ËÀßÄꤹ¤ë¤³¤È¤â²Äǽ¤Ç¤¹¡Ë
2¹ÔÌܤÈ3¹ÔÌܤϥȥé¥Ã¥×¤ÎÀßÄê¤Ç¤¹¡£2¹ÔÌܤǥȥé¥Ã¥×¤òÍ­¸ú¤Ë¤·¡¢3¹ÔÌܤǥȥé¥Ã¥×¤òÁ÷¿®¤¹¤ëSNMP¥µ¡¼¥Ð¤ÎIP¥¢¥É¥ì¥¹¤È¡¢¥³¥ß¥å¥Ë¥Æ¥£Ì¾¤òÀßÄꤷ¤Æ¤¤¤Þ¤¹¡£

¥¹¥Ý¥ó¥µ¡¼¥É¥ê¥ó¥¯