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USENIX Technical Program - Abstract - 13th Systems Administration Conference - LISA '99
Internet Routing and DNS Voodoo in the Enterprise
D. Brian Larkins, Lucent Technologies
Abstract
This paper describes the process used to transition from a legacy
intranet to a modern Internet access architecture. During the period
of the Lucent/AT&T/NCR tri-vestiture, much care was given to
re-engineer and re-design Lucent's data networking infrastructure with
a modern and flexible design. As a part of this re-structuring, the
existing Internet access architecture was viewed as archaic and in
desperate need of redesign. The legacy intranet was isolated from the
Internet in many ways including separate root name servers, a complete
lack of routing information to or from the Internet, and everything
was passed through home-grown application-layer proxy software. To
remedy this, a project was created to provide transparent proxyless
access to Internet hosts and applications. This project entailed
designing a routing architecture that provided connectivity,
redundancy, and manageability. In addition to routing issues, Lucent's
DNS infrastructure would also need a redesign to handle new
responsibilities given to it.
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