a simple and extensible routing-framework for testbeds (documentation) DES-SERT is a framework written as ANSI-C library. While generally usable in many application scenarios, it is primarily used in DES-Mesh, the multi-transceiver wireless mesh network testbed part of the DES-Testbed. DES-SERT enables the implementation of routing protocols via an underlay in user space. DES-SERT routing daemons utilize libpcap to receive packets from the network resp. to send them. Locally generated packets or packets destined to this host use a TUN or TAP interface as access point to the operating system protocol stack. This package contains the documentation.