{"id":1380,"date":"2026-07-09T01:39:14","date_gmt":"2026-07-08T16:39:14","guid":{"rendered":"https:\/\/www.ecoop.net\/memo\/?p=1380"},"modified":"2026-07-16T15:15:10","modified_gmt":"2026-07-16T06:15:10","slug":"windows-udp-command","status":"publish","type":"post","link":"https:\/\/www.ecoop.net\/memo\/archives\/windows-udp-command.html","title":{"rendered":"Windows\u3067UDP\u901a\u4fe1\u30fb\u30dd\u30fc\u30c8\u78ba\u8a8d\u3092\u3059\u308b\u65b9\u6cd5(PowerShell\/ncat)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u300cWindows\u3067UDP\u901a\u4fe1\u3092\u8a66\u3057\u305f\u3044\u306e\u306b\u3001telnet\u3082Test-NetConnection\u3082\u4f7f\u3048\u306a\u3044\u300d\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001Windows\u6a19\u6e96\u306etelnet\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3082Test-NetConnection\u3082TCP\u5c02\u7528\u3067\u3001UDP\u306b\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002UDP\u3092\u9001\u53d7\u4fe1\u3059\u308b\u306b\u306f\u3001PowerShell\u306e<code>UdpClient<\/code>\u304b\u3001ncat(Nmap\u306b\u542b\u307e\u308c\u308bnetcat\u4e92\u63db\u30c4\u30fc\u30eb)\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u203b\u52d5\u4f5c\u74b0\u5883\u306b\u3064\u3044\u3066:\u3053\u306e\u30da\u30fc\u30b8\u306e\u30b3\u30de\u30f3\u30c9\u306f Windows 11(build 26200)+ Windows PowerShell 5.1 \u3067\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059(2026-07-09)\u3002Windows 10 \u3084 PowerShell 7 \u3067\u3082\u3001\u4f7f\u3063\u3066\u3044\u308b\u306e\u306f\u5171\u901a\u306e .NET(<code>UdpClient<\/code>)\u3068 NetTCPIP \u30e2\u30b8\u30e5\u30fc\u30eb(<code>Get-NetUDPEndpoint<\/code> \u306a\u3069)\u306a\u306e\u3067\u540c\u3058\u3088\u3046\u306b\u52d5\u304f\u306f\u305a\u3067\u3059\u304c\u3001\u8868\u793a\u306e\u3053\u307e\u304b\u306a\u5dee\u306f\u74b0\u5883\u306b\u3088\u3063\u3066\u51fa\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7d50\u8ad6:Windows\u3067UDP\u3092\u8a66\u3059\u65b9\u6cd5<\/h3>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">UDP\u306e\u9001\u53d7\u4fe1\u306b\u306f\u3001\u8ffd\u52a0\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u8981\u3089\u306a\u3044PowerShell\u306e<code>System.Net.Sockets.UdpClient<\/code>\u304b\u3001Linux\/macOS\u306e<code>nc -u<\/code>\u3068\u307b\u307c\u540c\u3058\u611f\u899a\u3067\u4f7f\u3048\u308bncat(Nmap\u306b\u540c\u68b1)\u3092\u4f7f\u3044\u307e\u3059\u3002\u30dd\u30fc\u30c8\u304c\u5f85\u3061\u53d7\u3051\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3060\u3051\u3092\u898b\u305f\u3044\u306a\u3089\u3001<code>Get-NetUDPEndpoint<\/code>\u3084<code>netstat -an -p UDP<\/code>\u3067\u5341\u5206\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">telnet\u3068<code>Test-NetConnection<\/code>\u306f\u3069\u3061\u3089\u3082\u9078\u629e\u80a2\u306b\u5165\u308a\u307e\u305b\u3093\u3002\u307e\u305a\u305d\u306e\u7406\u7531\u304b\u3089\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">telnet\u306fUDP\u306b\u4f7f\u3048\u306a\u3044(\u305d\u3082\u305d\u3082\u65e2\u5b9a\u3067\u7121\u52b9)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Windows 10\/11\u306etelnet\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001\u65e2\u5b9a\u3067\u306f\u7121\u52b9\u5316\u3055\u308c\u3066\u3044\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u6a5f\u80fd\u3067\u3059\u3002\u4f7f\u3046\u306b\u306f\u81ea\u5206\u3067\u6709\u52b9\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u7ba1\u7406\u8005\u6a29\u9650\u306ePowerShell\u3067\u5b9f\u884c\nEnable-WindowsOptionalFeature -Online -FeatureName TelnetClient\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d1\u30cd\u30eb\u304b\u3089\u306a\u3089\u300c\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u6a5f\u80fd\u300d\u2192\u300cWindows\u306e\u6a5f\u80fd\u306e\u6709\u52b9\u5316\u307e\u305f\u306f\u7121\u52b9\u5316\u300d\u2192\u300cTelnet Client\u300d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u6709\u52b9\u5316\u3057\u3066\u3082\u610f\u5473\u304c\u3042\u308a\u307e\u305b\u3093\u3002telnet\u306fTCP\u5c02\u7528\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001UDP\u306e\u30dd\u30fc\u30c8\u306b\u306f\u63a5\u7d9a\u3067\u304d\u306a\u3044\u304b\u3089\u3067\u3059\u3002telnet\u3067<code>nc<\/code>\u306eUDP\u5f85\u53d7\u30dd\u30fc\u30c8\u306b\u7e4b\u3054\u3046\u3068\u3057\u3066\u3082\u3001\u671f\u5f85\u3057\u305f\u5fdc\u7b54\u306f\u8fd4\u3063\u3066\u304d\u307e\u305b\u3093\u3002UDP\u3092\u8a66\u3059\u306b\u306ftelnet\u4ee5\u5916\u306e\u30c4\u30fc\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><code>Test-NetConnection<\/code> \u3082TCP\u5c02\u7528(UDP\u306f\u78ba\u8a8d\u3067\u304d\u306a\u3044)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cPowerShell\u3067\u30dd\u30fc\u30c8\u78ba\u8a8d\u3068\u3044\u3048\u3070<code>Test-NetConnection<\/code>\u300d\u3068\u3044\u3046\u306e\u306f\u3088\u304f\u898b\u304b\u3051\u307e\u3059\u304c\u3001\u3053\u308c\u306fTCP\u306e\u758e\u901a\u78ba\u8a8d\u5c02\u7528\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002UDP\u306b\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002\u3053\u3053\u3092\u6df7\u540c\u3057\u3066\u3044\u308b\u89e3\u8aac\u3092\u3088\u304f\u898b\u304b\u3051\u308b\u306e\u3067\u3001\u306f\u3063\u304d\u308a\u66f8\u3044\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Microsoft Learn\u306e\u516c\u5f0f\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u898b\u308b\u3068\u3001<code>Test-NetConnection<\/code>\u304c\u53d7\u3051\u4ed8\u3051\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u30bb\u30c3\u30c8\u306f\u6b21\u306e4\u3064\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>-TraceRoute<\/code>(ICMP\u30fb\u7d4c\u8def\u78ba\u8a8d)<\/li>\n\n\n\n<li><code>-CommonTCPPort<\/code>(HTTP\/RDP\/SMB\/WINRM\u306e\u3044\u305a\u308c\u304b)<\/li>\n\n\n\n<li><code>-Port<\/code>(TCP\u30dd\u30fc\u30c8\u756a\u53f7\u3002\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306e\u8aac\u660e\u306b\u3082\u300cSpecifies the TCP port number\u300d\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b)<\/li>\n\n\n\n<li><code>-DiagnoseRouting<\/code>(\u7d4c\u8def\u9078\u629e\u306e\u8a3a\u65ad)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">UDP\u7528\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3084\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u3069\u3053\u306b\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u6b21\u306e\u3088\u3046\u306a\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3082\u3001\u305d\u308c\u306fTCP\u306e51820\u756a\u30dd\u30fc\u30c8\u306b\u5bfe\u3059\u308b\u758e\u901a\u78ba\u8a8d\u3067\u3042\u3063\u3066\u3001UDP\u306e51820\u756a\u30dd\u30fc\u30c8\u3068\u306f\u7121\u95a2\u4fc2\u3067\u3059\u3002\u540c\u3058\u756a\u53f7\u3067UDP\u306e51820\u756a\u3060\u3051\u304c\u958b\u3044\u3066\u3044\u3066\u3082\u3001\u3053\u306e\u7d50\u679c\u306f\u300c\u5931\u6557\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Test-NetConnection -ComputerName 192.0.2.10 -Port 51820\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u624b\u5143(Windows 11 + Windows PowerShell 5.1)\u3067\u78ba\u304b\u3081\u307e\u3057\u305f\u3002\u524d\u8ff0\u306e<code>UdpClient<\/code>\u306750007\u756a\u306eUDP\u30ea\u30b9\u30ca\u30fc\u3092\u8d77\u52d5\u3057\u305f\u307e\u307e\u3001\u540c\u305850007\u756a\u306b<code>Test-NetConnection<\/code>\u3092\u304b\u3051\u308b\u3068\u3001UDP\u306f\u958b\u3044\u3066\u3044\u308b\u306e\u306bTCP\u306e\u63a5\u7d9a\u3068\u3057\u3066\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Test-NetConnection -ComputerName 127.0.0.1 -Port 50007\n<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">\u8b66\u544a: TCP connect to (127.0.0.1 : 50007) failed\n...\nTcpTestSucceeded       : False\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">UDP\u306e50007\u756a\u304c\u5f85\u3061\u53d7\u3051\u4e2d\u3067\u3082<code>TcpTestSucceeded : False<\/code>\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u3001<code>Test-NetConnection<\/code>\u306fUDP\u3092\u898b\u3066\u3044\u306a\u3044\u3068\u3044\u3046\u52d5\u304b\u306c\u8a3c\u62e0\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c<code>Test-NetConnection<\/code>\u3067UDP\u306e\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3067\u304d\u305f\u300d\u3068\u3044\u3046\u4f53\u9a13\u8ac7\u3092\u898b\u304b\u3051\u305f\u3089\u3001\u305d\u308c\u306f\u5225\u306e\u8981\u56e0(TCP\u3082\u540c\u6642\u306b\u958b\u3044\u3066\u3044\u305f\u3001\u5fdc\u7b54\u306a\u3057\u3092\u90fd\u5408\u3088\u304f\u89e3\u91c8\u3057\u305f\u7b49)\u306b\u3088\u308b\u8aa4\u89e3\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002UDP\u3092\u78ba\u8a8d\u3057\u305f\u3044\u3068\u304d\u306f\u3001\u3053\u306e\u5f8c\u306e<code>UdpClient<\/code>\u304bncat\u3092\u4f7f\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">PowerShell\u3067UDP\u3092\u9001\u53d7\u4fe1\u3059\u308b(<code>UdpClient<\/code>)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8ffd\u52a0\u30bd\u30d5\u30c8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u8981\u3089\u306a\u3044\u65b9\u6cd5\u3067\u3059\u3002.NET\u306e<code>System.Net.Sockets.UdpClient<\/code>\u30af\u30e9\u30b9\u3092PowerShell\u304b\u3089\u76f4\u63a5\u547c\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u53d7\u4fe1\u5074(\u30ea\u30b9\u30ca\u30fc)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u5148\u306b\u53d7\u4fe1\u5074\u3092\u8d77\u52d5\u3057\u3066\u304a\u304d\u307e\u3059\u3002<code>Ctrl+C<\/code>\u3067\u7d42\u4e86\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$udp = New-Object System.Net.Sockets.UdpClient(50007)\nWrite-Host \"UDP 50007\u756a\u30dd\u30fc\u30c8\u3067\u53d7\u4fe1\u5f85\u6a5f\u4e2d...\"\n\nwhile ($true) {\n    $remote = New-Object System.Net.IPEndPoint([System.Net.IPAddress]::Any, 0)\n    $bytes  = $udp.Receive([ref]$remote)\n    $text   = [System.Text.Encoding]::UTF8.GetString($bytes)\n    Write-Host \"[$($remote.Address):$($remote.Port)] $text\"\n}\n<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>New-Object System.Net.Sockets.UdpClient(50007)<\/code> \u3067\u3001\u30ed\u30fc\u30ab\u30eb\u306e50007\u756a\u30dd\u30fc\u30c8\u3092\u4f7f\u3046<code>UdpClient<\/code>\u3092\u4f5c\u308a\u307e\u3059(\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u6e21\u3059\u3068\u3001\u305d\u306e\u30dd\u30fc\u30c8\u306b\u30d0\u30a4\u30f3\u30c9\u3055\u308c\u307e\u3059)\u3002<\/li>\n\n\n\n<li><code>Receive([ref]$remote)<\/code> \u306f\u3001\u30c7\u30fc\u30bf\u304c\u5c4a\u304f\u307e\u3067\u51e6\u7406\u3092\u6b62\u3081\u3066\u5f85\u3064(\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0)\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5c4a\u3044\u305f\u30c7\u30fc\u30bf\u3092\u30d0\u30a4\u30c8\u914d\u5217\u3067\u8fd4\u3057\u3001<code>$remote<\/code> \u306b\u9001\u4fe1\u5143\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u5165\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u9001\u4fe1\u5074<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\">$udp   = New-Object System.Net.Sockets.UdpClient\n$bytes = [System.Text.Encoding]::UTF8.GetBytes(\"Hello from PowerShell\")\n$udp.Send($bytes, $bytes.Length, \"192.0.2.10\", 50007)\n$udp.Close()\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Send(\u30d0\u30a4\u30c8\u914d\u5217, \u9577\u3055, \u5b9b\u5148\u30db\u30b9\u30c8, \u5b9b\u5148\u30dd\u30fc\u30c8)<\/code> \u306e\u5f62\u30671\u56de\u5206\u306e\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u3092\u9001\u308a\u307e\u3059\u3002\u5b9b\u5148\u3092\u5148\u306b\u56fa\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f <code>Connect(\"192.0.2.10\", 50007)<\/code> \u3092\u547c\u3093\u3067\u304b\u3089 <code>Send($bytes, $bytes.Length)<\/code> \u3060\u3051\u3067\u9001\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">UDP\u306f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9(\u63a5\u7d9a\u306e\u6982\u5ff5\u304c\u306a\u3044)\u306a\u306e\u3067\u3001\u3053\u306e\u9001\u4fe1\u304c\u5c4a\u3044\u305f\u304b\u3069\u3046\u304b\u306f\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3060\u3051\u3067\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u53d7\u4fe1\u5074\u306e\u753b\u9762\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u3066\u521d\u3081\u3066\u300c\u5c4a\u3044\u305f\u300d\u3068\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u5fdc\u7b54\u304c\u7121\u304f\u3066\u3082\u3001\u76f8\u624b\u306e\u30dd\u30fc\u30c8\u304c\u9589\u3058\u3066\u3044\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044(\u8a73\u3057\u304f\u306f<a href=\"\/memo\/archives\/udp-port-check.html\">UDP\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5<\/a>\u3067\u6271\u3044\u307e\u3059)\u3002<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">PowerShell\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3064\u3044\u3066<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><code>UdpClient<\/code>\u306fPowerShell\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u554f\u308f\u305a\u540c\u3058\u66f8\u304d\u65b9\u3067\u52d5\u304d\u307e\u3059(Windows PowerShell 5.1\u3067\u3082\u3001.NET\u4e0a\u3067\u52d5\u304fPowerShell 7\u3067\u3082\u5171\u901a\u306eAPI\u3067\u3059)\u3002\u4e00\u65b9\u3001\u5f8c\u8ff0\u3059\u308b<code>Get-NetUDPEndpoint<\/code>\u3084<code>Test-NetConnection<\/code>\u306fWindows\u5c02\u7528\u306e\u30e2\u30b8\u30e5\u30fc\u30eb(<code>NetTCPIP<\/code>)\u304c\u63d0\u4f9b\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3001PowerShell 7\u304b\u3089\u306fWindows PowerShell \u3068\u306e\u4e92\u63db\u6a5f\u80fd(WinCompat)\u7d4c\u7531\u3067\u52d5\u304d\u307e\u3059\u3002\u6319\u52d5\u306b\u5dee\u3092\u611f\u3058\u305f\u3089\u3001\u3053\u306e\u9055\u3044\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">ncat(Nmap)\u3067Linux\/macOS\u3068\u540c\u3058\u64cd\u4f5c\u3092\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c<code>nc -u<\/code> \u306e\u30b3\u30de\u30f3\u30c9\u64cd\u4f5c\u306b\u305d\u306e\u307e\u307e\u6163\u308c\u305f\u3044\u300d\u3068\u3044\u3046\u5834\u5408\u306f\u3001ncat\u3092\u4f7f\u3046\u306e\u304c\u65e9\u9053\u3067\u3059\u3002ncat\u306fNmap\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u914d\u5e03\u3057\u3066\u3044\u308bnetcat\u4e92\u63db\u30c4\u30fc\u30eb\u3067\u3001Windows\u7248\u3082\u516c\u5f0f\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/nmap.org\/download.html\">nmap.org \u306e\u516c\u5f0f\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30da\u30fc\u30b8<\/a>\u304b\u3089Windows\u7528\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc(<code>nmap-&lt;version&gt;-setup.exe<\/code>)\u3092\u53d6\u5f97\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u9805\u76ee\u306e\u9078\u629e\u753b\u9762\u3067\u300cNcat\u300d\u306b\u30c1\u30a7\u30c3\u30af\u304c\u5165\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044(\u65e2\u5b9a\u3067\u30aa\u30f3\u306b\u306a\u3063\u3066\u3044\u307e\u3059)\u3002\u5358\u4f53\u306encat\u3060\u3051\u304c\u6b32\u3057\u3044\u5834\u5408\u3082\u3001\u914d\u5e03\u306f\u3053\u306eNmap\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc\u7d4c\u7531\u304c\u516c\u5f0f\u624b\u6bb5\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u4f7f\u3044\u65b9<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Linux\/macOS\u306e<code>nc -u<\/code>\u3068\u307b\u307c\u540c\u3058\u66f8\u304d\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u53d7\u4fe1\u5074(\u30ea\u30b9\u30ca\u30fc)\nncat -u -l 50007\n\n# \u9001\u4fe1\u5074\nncat -u 192.0.2.10 50007\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u9001\u4fe1\u5074\u3067\u30ad\u30fc\u30dc\u30fc\u30c9\u5165\u529b\u3057\u305f\u5185\u5bb9\u304c\u3001\u53d7\u4fe1\u5074\u306e\u753b\u9762\u306b\u305d\u306e\u307e\u307e\u8868\u793a\u3055\u308c\u308c\u3070\u758e\u901a\u3057\u3066\u3044\u307e\u3059\u3002<code>-v<\/code>\u3092\u4ed8\u3051\u308b\u3068\u63a5\u7d9a\u72b6\u6cc1\u306e\u8a73\u7d30\u304c\u51fa\u308b\u306e\u3067\u3001\u6700\u521d\u306f\u4ed8\u3051\u3066\u304a\u304f\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002nc\/ncat\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u3082\u3063\u3068\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001<a href=\"\/memo\/archives\/netcat-udp-usage.html\">netcat(nc)\u3067UDP\u901a\u4fe1\u3059\u308b\u4f7f\u3044\u65b9\u307e\u3068\u3081<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">UDP\u30dd\u30fc\u30c8\u306e\u5f85\u53d7\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u76f8\u624b\u3067\u306f\u306a\u304f\u81ea\u5206\u306e\u30de\u30b7\u30f3\u3067\u3001UDP\u306e\u3069\u306e\u30dd\u30fc\u30c8\u304c\u5f85\u3061\u53d7\u3051\u3066\u3044\u308b\u304b\u300d\u3092\u898b\u305f\u3044\u3068\u304d\u306f\u3001\u9001\u53d7\u4fe1\u30c4\u30fc\u30eb\u3067\u306f\u306a\u304f\u3053\u3061\u3089\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">PowerShell(<code>Get-NetUDPEndpoint<\/code>)<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u3059\u3079\u3066\u306eUDP\u5f85\u53d7\u30dd\u30fc\u30c8\u3092\u4e00\u89a7\nGet-NetUDPEndpoint\n\n# \u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u3060\u3051\u78ba\u8a8d\nGet-NetUDPEndpoint -LocalPort 50007\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>NetTCPIP<\/code>\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3001Windows 8\/Server 2012\u4ee5\u964d\u306eWindows\u306b\u6a19\u6e96\u3067\u5165\u3063\u3066\u3044\u307e\u3059\u3002<code>LocalAddress<\/code>\u30fb<code>LocalPort<\/code>\u30fb<code>OwningProcess<\/code>(PID)\u306a\u3069\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30d7\u30ed\u30bb\u30b9\u540d\u307e\u3067\u898b\u305f\u3044\u5834\u5408\u306f\u3001<code>OwningProcess<\/code>\u306e\u5024\u3092<code>Get-Process -Id<\/code>\u306b\u6e21\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">Get-NetUDPEndpoint -LocalPort 50007 |\n  Select-Object LocalAddress, LocalPort, OwningProcess,\n    @{n='ProcessName'; e={(Get-Process -Id $_.OwningProcess).ProcessName}}\n<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\/PowerShell\u5171\u901a(<code>netstat<\/code>)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3063\u3068\u624b\u8efd\u306b\u898b\u305f\u3044\u3068\u304d\u306f<code>netstat<\/code>\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">netstat -an -p UDP\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>-p UDP<\/code>\u3067UDP\u306e\u63a5\u7d9a(\u6b63\u78ba\u306b\u306f\u5f85\u53d7\u30bd\u30b1\u30c3\u30c8)\u3060\u3051\u306b\u7d5e\u308a\u8fbc\u307f\u307e\u3059\u3002PID\u3082\u4e00\u7dd2\u306b\u898b\u305f\u3044\u5834\u5408\u306f<code>-o<\/code>\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">netstat -an -p UDP -o\n<\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">UDP\u306f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30ec\u30b9\u306a\u306e\u3067\u3001<code>netstat<\/code>\u306b\u300cEstablished(\u63a5\u7d9a\u78ba\u7acb)\u300d\u306e\u72b6\u614b\u306f\u51fa\u307e\u305b\u3093\u3002\u8868\u793a\u3055\u308c\u308b\u306e\u306f\u300c\u305d\u306e\u30dd\u30fc\u30c8\u3067\u8ab0\u304b\u304c\u5f85\u3061\u53d7\u3051\u3066\u3044\u308b\u304b\u300d\u3060\u3051\u3067\u3059\u3002TCP\u306e\u611f\u899a\u3067\u300c\u63a5\u7d9a\u4e2d\u304b\u3069\u3046\u304b\u300d\u3092\u63a2\u3057\u3066\u3082\u51fa\u3066\u3053\u306a\u3044\u306e\u3067\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u304a\u307e\u3051:Windows Defender \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u78ba\u8a8d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">UDP\u3067\u9001\u53d7\u4fe1\u3057\u3066\u3082\u3046\u307e\u304f\u5c4a\u304b\u306a\u3044\u3068\u304d\u306f\u3001Windows Defender \u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306e\u53d7\u4fe1\u898f\u5247\u304c\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u306a\u3044\u304b\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># \u7279\u5b9a\u30dd\u30fc\u30c8(UDP)\u5411\u3051\u306e\u53d7\u4fe1\u898f\u5247\u3092\u691c\u7d22\nGet-NetFirewallRule -Direction Inbound -Enabled True |\n  Get-NetFirewallPortFilter |\n  Where-Object { $_.Protocol -eq 'UDP' -and $_.LocalPort -eq '50007' }\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a72\u5f53\u3059\u308b\u898f\u5247\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u3001\u305d\u306e\u30dd\u30fc\u30c8\u3078\u306eUDP\u53d7\u4fe1\u306f\u65e2\u5b9a\u306e\u30d6\u30ed\u30c3\u30af\u5bfe\u8c61\u306b\u306a\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u3055\u3044\u3054\u306b<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Windows\u306etelnet\u306f\u305d\u3082\u305d\u3082\u65e2\u5b9a\u3067\u7121\u52b9\u306a\u3046\u3048\u3001TCP\u5c02\u7528\u3067UDP\u306b\u306f\u5143\u3005\u4f7f\u3048\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><code>Test-NetConnection<\/code>\u3082TCP\u5c02\u7528\u3067\u3059\u3002UDP\u306e\u78ba\u8a8d\u306b\u4f7f\u3048\u308b\u3068\u3044\u3046\u4f53\u9a13\u8ac7\u306f\u8aa4\u89e3\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u306e\u3067\u3001\u9d5c\u5451\u307f\u306b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li>UDP\u306e\u9001\u53d7\u4fe1\u306f\u3001\u8ffd\u52a0\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u4e0d\u8981\u306aPowerShell\u306e<code>UdpClient<\/code>\u304b\u3001Linux\/macOS\u3068\u540c\u3058\u611f\u899a\u3067\u4f7f\u3048\u308bncat\u306e\u3069\u3061\u3089\u304b\u3092\u4f7f\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u5f85\u53d7\u30dd\u30fc\u30c8\u306e\u78ba\u8a8d\u306f<code>Get-NetUDPEndpoint<\/code>\u304b<code>netstat -an -p UDP<\/code>\u3067\u3002<\/li>\n\n\n\n<li>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u5168\u822c\u3067\u306eUDP\u306e\u57fa\u672c(telnet\u304c\u4f7f\u3048\u306a\u3044\u7406\u7531\u3068nc\u306e\u4f7f\u3044\u65b9)\u306f<a href=\"\/memo\/archives\/udp-connection-on-command-line.html\">\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067UDP\u901a\u4fe1\u3092\u8a66\u3059\u65b9\u6cd5<\/a>\u3001\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u304b\u306e\u78ba\u8a8d\u305d\u306e\u3082\u306e\u306b\u3064\u3044\u3066\u306f<a href=\"\/memo\/archives\/udp-port-check.html\">UDP\u30dd\u30fc\u30c8\u304c\u958b\u3044\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5<\/a>\u3082\u3042\u308f\u305b\u3066\u3069\u3046\u305e\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u300cWindows\u3067UDP\u901a\u4fe1\u3092\u8a66\u3057\u305f\u3044\u306e\u306b\u3001telnet\u3082Test-NetConnection\u3082\u4f7f\u3048\u306a\u3044\u300d\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001Windows\u6a19\u6e96\u306etelnet\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3082Test-NetConnection\u3082TCP\u5c02\u7528\u3067 &hellip; <a href=\"https:\/\/www.ecoop.net\/memo\/archives\/windows-udp-command.html\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">Windows\u3067UDP\u901a\u4fe1\u30fb\u30dd\u30fc\u30c8\u78ba\u8a8d\u3092\u3059\u308b\u65b9\u6cd5(PowerShell\/ncat)<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[129,135,155],"tags":[161,22],"class_list":["post-1380","post","type-post","status-publish","format-standard","hentry","category-windows-dev","category-server","category-dev","tag-udp","tag-windows"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/comments?post=1380"}],"version-history":[{"count":2,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1380\/revisions"}],"predecessor-version":[{"id":1383,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/posts\/1380\/revisions\/1383"}],"wp:attachment":[{"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/media?parent=1380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/categories?post=1380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ecoop.net\/memo\/wp-json\/wp\/v2\/tags?post=1380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}