# ISATAP ISATAP is a protocol, standard, or security technology recorded in [[Scanned_20260730-1706|Scanned_20260730-1706]]. In the reconstruction, ISATAP tunnels IPv6 over IPv4 within an intranet. ## Historical and Technical Context [[Windows Display Driver Model|WDDM 1.1]] was the Windows 7-era display-driver model; Microsoft's update catalog still identifies Mobile Intel 4 Series Express WDDM 1.1 packages ([Microsoft Update Catalog](https://www.catalog.update.microsoft.com/Search.aspx?q=Mobile+Intel+4+series+Express+Chipset+wddm)). [[ISATAP|ISATAP]] tunnels IPv6 over IPv4 within an intranet. [[Remote Access Service|RAS]] asynchronous adapters and Microsoft Agile VPN are Windows virtual networking components. ## Role in Scanned_20260730-1706 This is a driver-enumeration page for a legacy Windows laptop: display compatibility, mobile-device association, VPN, and IPv6 transition/tunnel interfaces. ## Notebook Evidence - [[Scanned_20260730-1706|Scanned_20260730-1706]], PDF page 34: Windows system information and tunnel adapters. **Evidentiary status:** The page occurrence and transcription are notebook evidence. Technical identification follows the source reconstruction’s cited research. Co-occurrence does not by itself prove ownership, deployment, or a direct operational relationship. ## Relationships and Overlays On the cited page or pages, ISATAP appears with [[Remote Access Service|RAS]], [[Windows Display Driver Model|WDDM]]. These are page-level or reconstruction-level relationships, not automatic claims of dependency. ## Cross-Notebook Significance This note supplies a concrete network-policy or evidence mechanism beneath the AIOps, security-operations, and governance concerns in [[Scanned_20260730-1802|Scanned_20260730-1802]]. It shows how dynamic state is created, observed, and retained at the protocol boundary. ## Missed Signals and Open Leads “RSA Async” is likely “RAS Async.” “Ai express Root” may be a misread device-tree label and needs a direct screenshot or system-information export. ## Sources - [[Scanned_20260730-1706|Scanned_20260730-1706]], especially PDF page(s) 34. - `Scanned_20260730-1706.pdf`, cited as a plain archival filename; the PDF is not linked from `wiki-notes`. - External research citations used for identification remain preserved in the source reconstruction. - [Microsoft Update Catalog](https://www.catalog.update.microsoft.com/Search.aspx?q=Mobile+Intel+4+series+Express+Chipset+wddm)