FreeBSD\u306e\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u3092\u3084\u308a\u76f4\u3057\u3066\u304b\u3089\u3001MRTG\u3067SNMP\u306e\u60c5\u5831\u304c\u53d6\u5f97\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3044\u305f\u3002<\/p>\n
net-snmp\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066snmpwalk\u3092\u304b\u3051\u3066\u3082\u8fd4\u4e8b\u304c\u8fd4\u3063\u3066\u3053\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u75c7\u72b6\u306fSNMP\u306e\u30d1\u30b1\u30c3\u30c8\u304c\u3046\u307e\u304f\u51fa\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u3002<\/p>\n
\u3067\u3001ipfw\u3067SNMP\u306eudp\u30dd\u30fc\u30c8\u3092\u958b\u304f\u8a2d\u5b9a\u306b\u3002\u3053\u3053\u3067\u554f\u984c\u306a\u306e\u306f\u3001udp\u306f\u672c\u6765\u4e00\u65b9\u7684\u5782\u308c\u6d41\u3057\u3060\u304c\u3001SNMP\u306equery\u306foutgoing\u3067\u9069\u5f53\u306b\u9078\u3070\u308c\u305fport\u304b\u3089\u5bfe\u8c61\u306eport 161\u306bquery\u304c\u98db\u3076\u3068\u3001\u8fd4\u4e8b\u304c\u5bfe\u8c61\u306eport 161\u304b\u3089outgoing\u3067\u9078\u3070\u308c\u305fport\u306b\u5e30\u3063\u3066\u304f\u308b\u3068\u3044\u3046\u3053\u3068\u3002\u3060\u304b\u3089\u5358\u7d14\u306bport 161\u3078\u306eoutgoing\u3092\u8a31\u53ef\u3057\u305f\u3060\u3051\u3060\u3068\u3001\u8fd4\u4e8b\u304c\u5165\u3063\u3066\u3053\u306a\u3044\u306e\u3067No Response\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3002<\/p>\n
\u3067\u3001\u3075\u3068\u601d\u3044\u51fa\u3057\u305f\u306e\u304c\u3001\u3053\u308c\u3063\u3066ntp\u306e\u5834\u5408\u3068\u540c\u3058\u3060\u306a\u3002<\/p>\n
\u3067\u3001ipfw\u306e\u8a2d\u5b9a\u3067\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
ipfw add pass udp from ${iip} to any 161 keep-state<\/p>\n
keep-state\u3063\u3066\u6307\u5b9a\u304c\u3044\u3063\u305f\u3044\u4f55\u306e\u5f79\u306b\u7acb\u3064\u306e\u304b\u3068\u601d\u3063\u3066\u3044\u305f\u304c\u3001\u3053\u3053\u3067\u5f79\u306b\u7acb\u3064\u306e\u306d\u3002keep-state\u3092\u6307\u5b9a\u3057\u3066\u304a\u304f\u3068outgoing\u3057\u305fudp\u306b\u5bfe\u3059\u308b\u8fd4\u4e8b\u304c\u5e30\u3063\u3066\u304f\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3057\u3070\u3089\u304f\u306e\u9593\u3001firewall\u306b\u7a74\u3092\u958b\u3051\u3066\u304a\u3044\u3066\u304f\u308c\u308b\u308f\u3051\u3060\u3002<\/p>\n
\u3067\u3001\u3081\u3067\u305f\u304fsnmpwalk\u3067\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u304c\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/p>\n
\u3042\u3068\u306fMRTG\u306e\u8a2d\u5b9a\u3092\u66f8\u304f\u3060\u3051\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
FreeBSD\u306e\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u3092\u3084\u308a\u76f4\u3057\u3066\u304b\u3089\u3001MRTG\u3067SNMP\u306e\u60c5\u5831\u304c\u53d6\u5f97\u3067\u304d\u306a\u304f\u306a\u3063\u3066\u3044\u305f\u3002
\nnet-snmp\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066snmpwalk\u3092\u304b\u3051\u3066\u3082\u8fd4\u4e8b\u304c\u8fd4\u3063\u3066\u3053\u306a\u3044\u3053\u3068\u304b\u3089\u3001\u75c7\u72b6\u306fSNMP\u306e\u30d1\u30b1\u30c3\u30c8\u304c\u3046\u307e\u304f\u51fa\u3066\u3044\u306a\u3044\u3089\u3057\u3044\u3002
\n\u3067\u3001ipfw\u3067SNMP\u306eudp\u30dd\u30fc\u30c8\u3092\u958b\u304f\u8a2d\u5b9a\u306b\u3002\u3053\u3053\u3067\u554f\u984c\u306a\u306e\u306f\u3001udp\u306f\u672c\u6765\u4e00\u65b9\u7684\u5782\u308c\u6d41\u3057\u3060\u304c\u3001SNMP\u306equery\u306foutgoing\u3067\u9069\u5f53\u306b\u9078\u3070\u308c\u305fport\u304b\u3089\u5bfe\u8c61\u306eport
\n161\u306bquery\u304c\u98db\u3076\u3068\u3001\u8fd4\u4e8b\u304c\u5bfe\u8c61\u306eport 161\u304b\u3089outgoing…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-27","post","type-post","status-publish","format-standard","hentry","category-2"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4j6YI-r","jetpack-related-posts":[],"_links":{"self":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/comments?post=27"}],"version-history":[{"count":0,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/posts\/27\/revisions"}],"wp:attachment":[{"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/media?parent=27"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/categories?post=27"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bam-system.ddo.jp\/wordpress\/ura\/wp-json\/wp\/v2\/tags?post=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}