Multipath TCP Support for Single-homed End-systems

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Last updated 2014-01-16 (latest revision 2013-07-15)
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Multipath TCP relies on the existence of multiple paths at the end- systems typically provided through different IP addresses obtained by different ISPs. While this scenario is certainly becoming increasingly a reality (e.g. mobile devices), currently most end- systems are single-homed (e.g. desktop PCs in an enterprise). It seems also likely that a lot of network sites will insist on having all traffic pass a single network element (e.g. for security reasons) before traffic is split across multiple paths. This memo therefore describes mechanisms to make multiple paths available to multipath TCP-capable end-systems that are not available directly at the end-systems but somewhere within the network.


Rolf Winter (
Michael Faath (
Andreas Ripke (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)