<p>ルーターのDHCP機能によりIPアドレスを自動的にふると、接続するたびにIPアドレスが変わってしまう。特定の機器に割り当てるIPアドレスを固定したほうが管理が楽だし、セキュリティ上好ましい。今回はRTX1210などのYAMAHAルーターを使ってMACアドレスと割り当てるIPアドレスを紐付ける方法について説明します。<&sol;p>&NewLine;<div class&equals;"kaerebalink-box" style&equals;"text-align&colon;left&semi;padding-bottom&colon;20px&semi;font-size&colon;small&semi;&sol;zoom&colon; 1&semi;overflow&colon; hidden&semi;">&NewLine;<div class&equals;"kaerebalink-image" style&equals;"float&colon;left&semi;margin&colon;0 15px 10px 0&semi;"><a href&equals;"https&colon;&sol;&sol;www&period;amazon&period;co&period;jp&sol;exec&sol;obidos&sol;ASIN&sol;B00NF2GN6U&sol;bacque-22&sol;" target&equals;"&lowbar;blank" rel&equals;"nofollow" ><img src&equals;"https&colon;&sol;&sol;images-fe&period;ssl-images-amazon&period;com&sol;images&sol;I&sol;41x2HKj6VQL&period;&lowbar;SL160&lowbar;&period;jpg" style&equals;"border&colon; none&semi;" &sol;><&sol;a><&sol;div>&NewLine;<div class&equals;"kaerebalink-info" style&equals;"line-height&colon;120&percnt;&semi;&sol;zoom&colon; 1&semi;overflow&colon; hidden&semi;">&NewLine;<div class&equals;"kaerebalink-name" style&equals;"margin-bottom&colon;10px&semi;line-height&colon;120&percnt;"><a href&equals;"https&colon;&sol;&sol;www&period;amazon&period;co&period;jp&sol;exec&sol;obidos&sol;ASIN&sol;B00NF2GN6U&sol;bacque-22&sol;" target&equals;"&lowbar;blank" rel&equals;"nofollow" >ヤマハ ギガアクセスVPNルーター RTX1210<&sol;a><&sol;p>&NewLine;<div class&equals;"kaerebalink-powered-date" style&equals;"font-size&colon;8pt&semi;margin-top&colon;5px&semi;font-family&colon;verdana&semi;line-height&colon;120&percnt;">posted with <a href&equals;"http&colon;&sol;&sol;kaereba&period;com" rel&equals;"nofollow" target&equals;"&lowbar;blank">カエレバ<&sol;a><&sol;div>&NewLine;<&sol;div>&NewLine;<div class&equals;"kaerebalink-detail" style&equals;"margin-bottom&colon;5px&semi;"> ヤマハ&lpar;YAMAHA&rpar; 2014-11-27 <&sol;div>&NewLine;<div class&equals;"kaerebalink-link1" style&equals;"margin-top&colon;10px&semi;">&NewLine;<div class&equals;"shoplinkamazon" style&equals;"display&colon;inline&semi;margin-right&colon;5px"><a href&equals;"https&colon;&sol;&sol;www&period;amazon&period;co&period;jp&sol;gp&sol;search&quest;keywords&equals;RTX1210&&num;038&semi;&lowbar;&lowbar;mk&lowbar;ja&lowbar;JP&equals;&percnt;E3&percnt;82&percnt;AB&percnt;E3&percnt;82&percnt;BF&percnt;E3&percnt;82&percnt;AB&percnt;E3&percnt;83&percnt;8A&&num;038&semi;tag&equals;bacque-22" target&equals;"&lowbar;blank" rel&equals;"nofollow" >Amazon<&sol;a><&sol;div>&NewLine;<div class&equals;"shoplinkrakuten" style&equals;"display&colon;inline&semi;margin-right&colon;5px"><a href&equals;"https&colon;&sol;&sol;hb&period;afl&period;rakuten&period;co&period;jp&sol;hgc&sol;169e124b&period;ad18ba9f&period;169e124c&period;8664ddb0&sol;&quest;pc&equals;https&percnt;3A&percnt;2F&percnt;2Fsearch&period;rakuten&period;co&period;jp&percnt;2Fsearch&percnt;2Fmall&percnt;2FRTX1210&percnt;2F-&percnt;2Ff&period;1-p&period;1-s&period;1-sf&period;0-st&period;A-v&period;2&percnt;3Fx&percnt;3D0&percnt;26scid&percnt;3Daf&lowbar;ich&lowbar;link&lowbar;urltxt&percnt;26m&percnt;3Dhttp&percnt;3A&percnt;2F&percnt;2Fm&period;rakuten&period;co&period;jp&percnt;2F" target&equals;"&lowbar;blank" rel&equals;"nofollow" >楽天市場<&sol;a><&sol;div>&NewLine;<div class&equals;"shoplinkyahoo" style&equals;"display&colon;inline&semi;margin-right&colon;5px"><a href&equals;"&sol;&sol;ck&period;jp&period;ap&period;valuecommerce&period;com&sol;servlet&sol;referral&quest;sid&equals;3395417&&num;038&semi;pid&equals;885190264&&num;038&semi;vc&lowbar;url&equals;http&percnt;3A&percnt;2F&percnt;2Fsearch&period;shopping&period;yahoo&period;co&period;jp&percnt;2Fsearch&percnt;3Fp&percnt;3DRTX1210&&num;038&semi;vcptn&equals;kaereba" target&equals;"&lowbar;blank" rel&equals;"nofollow" >Yahooショッピング<img src&equals;"&sol;&sol;ad&period;jp&period;ap&period;valuecommerce&period;com&sol;servlet&sol;gifbanner&quest;sid&equals;3395417&&num;038&semi;pid&equals;885190264" height&equals;"1" width&equals;"1" border&equals;"0"><&sol;a><&sol;div>&NewLine;<&sol;div>&NewLine;<&sol;div>&NewLine;<div class&equals;"booklink-footer" style&equals;"clear&colon; left"><&sol;div>&NewLine;<&sol;div>&NewLine;<h3>RTX1210の設定をTFTPによりダウンロード<&sol;h3>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;3145">tftpコマンドにより現在のconfigをダウンロード<&sol;a>。DHCP configurationの部分だけを下に示してあります。<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2016&sol;01&sol;02114a86a1c68d3f415aa17e82bc65b9&period;jpg" rel&equals;"attachment wp-att-5341"><img data-attachment-id&equals;"5341" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;5338&sol;attachment-0" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2016&sol;01&sol;02114a86a1c68d3f415aa17e82bc65b9&period;jpg&quest;fit&equals;502&percnt;2C443&amp&semi;ssl&equals;1" data-orig-size&equals;"502&comma;443" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"RTX1210でmacアドレスとDHCPアドレスを紐づけ" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2016&sol;01&sol;02114a86a1c68d3f415aa17e82bc65b9&period;jpg&quest;fit&equals;400&percnt;2C353&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2016&sol;01&sol;02114a86a1c68d3f415aa17e82bc65b9&period;jpg&quest;fit&equals;502&percnt;2C443&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-5341" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2016&sol;01&sol;02114a86a1c68d3f415aa17e82bc65b9-400x353&period;jpg" alt&equals;"RTX1210でmacアドレスとDHCPアドレスを紐づけ" width&equals;"400" height&equals;"353" &sol;><&sol;a><&sol;p>&NewLine;<h5>DHCPサーバー機能ON<&sol;h5>&NewLine;<p>以下の2行はDHCPサーバー機能をONにしますよという宣言&srarr;<&sol;p>&NewLine;<p>dhcp service server<br &sol;>&NewLine;dhcp server rfc2131 compliant except remain-silent<&sol;p>&NewLine;<h5>DHCPにより割り当てるIPアドレスの範囲を指定<&sol;h5>&NewLine;<p>仮に192&period;168&period;100&period;101から192&period;168&period;100&period;120にIPアドレスの範囲を指定する場合<br &sol;>&NewLine;&srarr;dhcp scope 1 192&period;168&period;100&period;101-192&period;168&period;100&period;120<&sol;p>&NewLine;<h5>割り当てるIPアドレスとMACアドレスを紐付け<&sol;h5>&NewLine;<p>192&period;168&period;100&period;101にMACアドレス11&colon;22&colon;33&colon;44&colon;55&colon;66の機器を追加<br &sol;>&NewLine;&srarr;dhcp scope bind 192&period;168&period;100&period;101 ethernet 11&colon;22&colon;33&colon;44&colon;55&colon;66<&sol;p>&NewLine;<h3>新しいWi-Fi機器を設定する場合<&sol;h3>&NewLine;<h5>DHCP範囲を広げる<&sol;h5>&NewLine;<p>新たなIPアドレス192&period;168&period;100&period;100を追加するために192&period;168&period;100&period;101-192&period;168&period;100&period;120を192&period;168&period;100&period;100-192&period;168&period;100&period;120に変更して範囲を広げる<&sol;p>&NewLine;<p>dhcp scope 1 192&period;168&period;100&period;100-192&period;168&period;100&period;120<&sol;p>&NewLine;<h5>192&period;168&period;100&period;100を新たなIPアドレスとして追加<&sol;h5>&NewLine;<p>新たな機器のMACアドレスを22&colon;33&colon;44&colon;55&colon;66&colon;77とした場合<br &sol;>&NewLine;&srarr;dhcp scope bind 192&period;168&period;100&period;100 ethernet 22&colon;33&colon;44&colon;55&colon;66&colon;77を追加<&sol;p>&NewLine;<h3>TFTPによりRTX1210にアップロード<&sol;h3>&NewLine;<p>修正した<a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;4345">config&period;txtをTFTPによりアップロード<&sol;a>すれば完了です<&sol;p>&NewLine;