The old address in Portage at the moment is http://www.atstake.com/research/tools/network_utilities/, which is outdated. The corrected address is http://www.securityfocus.com/tools/137 Reproducible: Always Steps to Reproduce: 1. 2. 3.
By the way, I got this information from from http://www.atstake.com/research/tools/
done