> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/ras-admin-guide/v22-ja-jp/fu-lu/pto/halb.md).

# HALB

<table><thead><tr><th width="113">ソース</th><th width="139">同期先プロバイダー</th><th width="116">プロトコル</th><th width="101">ポート</th><th>説明</th></tr></thead><tbody><tr><td>HALB</td><td>HALB</td><td>VRRP</td><td>112</td><td>アクティブなHALBへのVIPの自動割り当てに使用される、HALB間通信。</td></tr><tr><td></td><td>転送モードの RAS セキュアゲートウェイ</td><td>TCP、UDP</td><td>80、443</td><td>管理およびユーザーセッションの接続。</td></tr><tr><td></td><td>セキュア モードの RAS セキュア ゲートウェイ</td><td><p>TCP、UDP</p><p>TCP、UDP</p></td><td><p>80、443</p><p>20009</p></td><td><p>管理およびユーザーセッションの接続。</p><p>ファイアウォールを介したデバイス マネージャーのシャドウイング（間接的なネットワーク接続）。</p></td></tr></tbody></table>


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