The geoip ebuild only installs five of the six free databases available from MaxMind; "GeoLite ASN IPv6" is missing. This causes astraceroute, a tool from net-analyzer/netsniff-ng, to fail. Patch: "asnum/GeoIPASNumv6" needs to be added to the DATABASES variable in geoipupdate.sh.
1.6.1 installs a geoipupdate.sh that includes support for asnum/GeoIPASNumv6.