NSA Router Security Configuration Guide with detailed instructions for Cisco Systems
It hasn't been updated for awhile but still is a good checklist!
Router Security Configuration Guide
Principles and guidance for secure configuration of IP routers, with detailed instructions for Cisco Systems routers
Router Security Guidance Activity of the System and Network Attack Center (SNAC)
December 15, 2005 Version: 1.1c
See also
Router Security Configuration Guide Supplement - Security for IPv6 Routers, Version 1.0
All the reports should be hosted at Cisco Router Guides
Authors:
Vanessa Antoine
Raymond Bongiorni
Anthony Borza
Patricia Bosmajian
Daniel Duesterhaus
Michael Dransfield
Brian Eppinger
Kevin Gallicchio
Stephen Hamilton James Houser
Andrew Kim
Phyllis Lee
Brian McNamara
Tom Miller
David Opitz
Florence Richburg
Michael Wiacek
Mark Wilson
Neal Ziring
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