Ensure 'MSS: (PerformRouterDiscovery) Allow IRDP to detect and configure Default Gateway addresses' is set to 'Disabled'

보통레벨 2자동windows

설명

This setting is used to enable or disable the Internet Router Discovery Protocol (IRDP), which allows the system to detect and configure default gateway addresses automatically as described in RFC 1256 on a per-interface basis. The recommended state for this setting is: Disabled.

점검 방법

감사 방식: Windows 레지스트리

registry

$bad = @(); $v = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery' -ErrorAction SilentlyContinue).'PerformRouterDiscovery'; if (-not ($null -ne $v -and @(0) -contains [int64]$v)) { $bad += 'PerformRouterDiscovery=' + $v }; if ($bad.Count -eq 0) { 'compliant' } else { 'non-compliant: ' + ($bad -join ', ') }

예상 출력: compliant

조치 방법

조치 방식: 셸 명령

shell

if (-not (Test-Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters')) { New-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters' -Force | Out-Null }; New-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters' -Name 'PerformRouterDiscovery' -Value 0 -PropertyType DWord -Force | Out-Null

속성

운영 체제: windows-server-2025-dc, windows-server-2025-ms
태그: cis-convertedregistrywindows
참고 자료: CIS Microsoft Windows Server 2025 Benchmark v2.1.0 - 18.5.7

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target windows --level 2