Domain name based network interface selection

Document Type Replaced Internet-Draft (individual)
Last updated 2009-02-19 (latest revision 2008-10-23)
Replaced by draft-savolainen-mif-dns-server-selection
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A multi-homed host with multiple physical and/or virtual network interfaces has to select which one of the network interfaces to use for a new outgoing IPv4 or IPv6 connection. This document describes a method to select an interface by using destination's fully qualified domain name and DNS suffix information received dynamically for each network interface. The method is useful, for example, in split horizon DNS and walled garden scenarios, where right network interface has to be selected even before DNS resolution is conducted.


Teemu Savolainen (

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