{"id":909,"date":"2022-10-05T09:44:01","date_gmt":"2022-10-05T00:44:01","guid":{"rendered":"https:\/\/pg-mana.net\/blog\/?p=909"},"modified":"2024-09-09T17:34:54","modified_gmt":"2024-09-09T08:34:54","slug":"dhcp-and-ip-settings-for-direct-connection","status":"publish","type":"post","link":"https:\/\/pg-mana.net\/blog\/dhcp-and-ip-settings-for-direct-connection\/","title":{"rendered":"Ethernet\u3067\u4e00\u5bfe\u4e00\u3067\u30c7\u30d0\u30a4\u30b9\u3068\u901a\u4fe1"},"content":{"rendered":"\n<p>\u30eb\u30fc\u30bf\u306a\u3069\u3092\u4ecb\u3055\u305a\u306bIoT\u30c7\u30d0\u30a4\u30b9\u3068\u76f4\u63a5\u3084\u308a\u53d6\u308a\u3059\u308b\u5834\u5408\u306b\u5fc5\u8981\u306a\u8a2d\u5b9a\u306a\u3069\u3092\u8a18\u9332\u3057\u3066\u304a\u304d\u307e\u3059\u3002<br>\u5177\u4f53\u7684\u306b\u8a00\u3046\u3068\u3001\u672c\u6765\u306f IoT Device &lt;&#8212;> Router &lt;&#8212;> PC\u3068\u901a\u4fe1\u3059\u308b\u3082\u306e\u3092IoT Device &lt;&#8211;> PC\u3068\u901a\u4fe1\u3059\u308b\u5834\u5408\u306b\u5fc5\u8981\u306b\u8a2d\u5b9a\u3067\u3059\u3002\u74b0\u5883\u306fopenSUSE\u3092\u60f3\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305adhcp-server\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u8a2d\u5b9a\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u307e\u3059\u3002<br>\u306a\u304a\u3001\u4eca\u56deIoT Device\u306b\u5272\u308a\u5f53\u3066\u308bIP\u30a2\u30c9\u30ec\u30b9\u30ec\u30f3\u30b8\u306f192.168.0.2 ~ 192.168.0.100\u307e\u3067\u3068\u3057\u3001PC\u5074\u306eIPv4\u30a2\u30c9\u30ec\u30b9\u306f192.168.0.1\u3068\u3057\u307e\u3059\u3002\u307e\u305f\u4f7f\u7528\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u540d\u524d\u306f&#8221;enp1s0f1&#8243;\u3068\u3057\u307e\u3059\u3002\u307e\u305f\u5fc5\u8981\u306b\u5fdc\u3058\u3066firewalld\u306f\u843d\u3068\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>&#8220;\/etc\/dhcpd.conf&#8221;\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>option subnet-mask 255.255.255.0;\nsubnet 192.168.0.0 netmask 255.255.255.0 {\n        range 192.168.0.2 192.168.0.100;\n}<\/code><\/pre>\n\n\n\n<p>\u6b21\u306b&#8221;\/etc\/sysconfig\/dhcpd&#8221;\u306b\u4f7f\u7528\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>DHCPD_INTERFACE=\"enp1s0f1\"<\/code><\/pre>\n\n\n\n<p>IP\u30b3\u30de\u30f3\u30c9\u3067IP\u30a2\u30c9\u30ec\u30b9\u30ec\u30f3\u30b8\u3092\u5272\u308a\u5f53\u3066\u3066\u304b\u3089DHCP\u30b5\u30fc\u30d0\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ip addr flush dev enp1s0f1\nsudo ip addr add 192.168.0.1\/24 dev enp1s0f1\nsudo systemctl start dhcpd<\/code><\/pre>\n\n\n\n<p>IoT Device\u304cARP\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u3066IP\u30a2\u30c9\u30ec\u30b9\u306e\u554f\u3044\u5408\u308f\u305b\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u9069\u5207\u306b\u5fdc\u7b54\u3057\u3066\u304f\u308c\u308b\u5834\u5408\u306f\u3044\u3044\u3093\u3067\u3059\u304c\u3001\u7121\u8996\u3057\u3066\u3057\u307e\u3046\u3088\u3046\u306a\u30c7\u30d0\u30a4\u30b9\u306e\u5834\u5408IP\u30a2\u30c9\u30ec\u30b9\u76f4\u6307\u5b9a\u3067\u901a\u4fe1\u3057\u3066\u3082PC\u306e\u65b9\u304cARP\u30d1\u30b1\u30c3\u30c8\u3092\u98db\u3070\u3057\u307e\u304f\u3063\u3066\u7d50\u5c40\u901a\u4fe1\u3067\u304d\u306a\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br>\u305d\u306e\u5834\u5408\u3001\u7121\u7406\u3084\u308a\u30d1\u30b1\u30c3\u30c8\u304cIoT Device\u306b\u5230\u9054\u3059\u308b\u3088\u3046\u306b\u8abf\u6574\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>IoT Device\u3068\u306eDHCP\u3067\u306e\u3084\u308a\u53d6\u308a(Discover\u30fbRequest\u30fbACK)\u306e\u4e2d\u3067IP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u304c\u308f\u304b\u308b\u306f\u305a\u306a\u306e\u3067\u305d\u308c\u3092\u8a18\u9332\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002\u3082\u3057\u304f\u306f\u30c7\u30d0\u30a4\u30b9\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u305d\u3061\u3089\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<br>ip\u30b3\u30de\u30f3\u30c9\u7fa4\u3092\u5b9f\u884c\u3059\u308b\u524d\u306bIoT\u30c7\u30d0\u30a4\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u6570\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IOT_IP_ADDRESS=192.168.0.2\nIOT_MAC_ADDRESS=00:00:5E:00:53:11<\/code><\/pre>\n\n\n\n<p>DHCP\u306b\u3088\u308bIoT Device\u306eIP\u30a2\u30c9\u30ec\u30b9\u53d6\u5f97\u304c\u5b8c\u4e86\u3057\u305f\u306e\u898b\u8a08\u3089\u3063\u3066DHCP\u30b5\u30fc\u30d0\u3092\u505c\u6b62\u3057\u3001ip\u30b3\u30de\u30f3\u30c9\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8abf\u6574\u3092\u884c\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl stop dhcpd\nsudo ip addr flush dev enp1s0f1\nsudo ip addr add 192.168.0.1\/24 dev enp1s0f1\nsudo ip route add ${IOT_IP_ADDRESS} dev enp1s0f1\nsudo ip neigh add ${IOT_IP_ADDRESS} dev enp1s0f1 lladdr ${IOT_MAC_ADDRESS}<\/code><\/pre>\n\n\n\n<p>\u3053\u308c\u3067ARP\u3092\u98db\u3070\u3055\u305a\u306bMAC\u30a2\u30c9\u30ec\u30b9\u3068IP\u30a2\u30c9\u30ec\u30b9\u76f4\u6307\u5b9a\u3067IoT Device\u3068\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30eb\u30fc\u30bf\u306a\u3069\u3092\u4ecb\u3055\u305a\u306bIoT\u30c7\u30d0\u30a4\u30b9\u3068\u76f4\u63a5\u3084\u308a\u53d6\u308a\u3059\u308b\u5834\u5408\u306b\u5fc5\u8981\u306a\u8a2d\u5b9a\u306a\u3069\u3092\u8a18\u9332\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u8a00\u3046\u3068\u3001\u672c\u6765\u306f IoT Device &lt;&#8212;> Router &lt;&#8212;> PC\u3068\u901a\u4fe1\u3059\u308b\u3082 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-909","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/posts\/909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/comments?post=909"}],"version-history":[{"count":0,"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/posts\/909\/revisions"}],"wp:attachment":[{"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/media?parent=909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/categories?post=909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pg-mana.net\/blog\/wp-json\/wp\/v2\/tags?post=909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}