--- title: Video: Combining Data-Link- and Network Layer Addresses... description: A video from the 'How Networks Really Work' webinar covering how network layer addresses are mapped to data-link layer addresses. It explores ARP (and IPv6... canonical: https://daily.dev/posts/video-combining-data-link--and-network-layer-addresses-ipspace-net-blog-znsfxpnht twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Video: Combining Data-Link- and Network Layer Addresses « ipSpace.net blog | daily.dev og:description: A video from the 'How Networks Really Work' webinar covering how network layer addresses are mapped to data-link layer addresses. It explores ARP (and IPv6... og:url: https://daily.dev/posts/video-combining-data-link--and-network-layer-addresses-ipspace-net-blog-znsfxpnht og:image: https://api.daily.dev/og/posts/zNsFxpNht.png og:image:alt: Video: Combining Data-Link- and Network Layer Addresses « ipSpace.net blog og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Video: Combining Data-Link- and Network Layer Addresses « ipSpace.net blog **[ipSpace.net Blog](https://daily.dev/sources/ipspace)** · 1 min read · 0 upvotes · 0 comments ## Summary A video from the 'How Networks Really Work' webinar covering how network layer addresses are mapped to data-link layer addresses. It explores ARP (and IPv6 Neighbor Discovery) as the primary mechanisms, while hinting at alternative approaches. Requires a free or standard ipSpace.net subscription to watch. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What protocol maps IPv4 network addresses to data-link layer (MAC) addresses on a local network? ARP (Address Resolution Protocol) maps IPv4 network addresses to data-link layer MAC addresses for adjacent hosts. For IPv6, the equivalent mechanism is Neighbor Discovery (ND). These are the primary protocols used, though alternative mapping approaches also exist depending on the network architecture. _Network engineers tracking protocol fundamentals and alternatives find relevant discussions on daily.dev._ --- Tags: [#networking](https://daily.dev/tags/networking) [View this post on daily.dev](https://daily.dev/posts/video-combining-data-link--and-network-layer-addresses-ipspace-net-blog-znsfxpnht) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Video: Combining Data-Link- and Network Layer Addresses « ipSpace.net blog","url":"https://daily.dev/posts/video-combining-data-link--and-network-layer-addresses-ipspace-net-blog-znsfxpnht","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/video-combining-data-link--and-network-layer-addresses-ipspace-net-blog-znsfxpnht"},"datePublished":"2026-08-11T08:53:43.039Z","dateModified":"2026-08-11T08:59:55.996Z","description":"A video from the 'How Networks Really Work' webinar covering how network layer addresses are mapped to data-link layer addresses. 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