+An **overlay network** is a [virtual network](/wiki/virtual_network) built on top of another network, often the [Internet](/wiki/internet). It establishes its own logical connections and protocols, creating a distinct architecture for specific services or enhanced routing.
+## See also
+- [Peer-to-peer](/wiki/peer-to-peer)
+- [VPN](/wiki/vpn)
+- [Network Topology](/wiki/network_topology)
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