Actually, I think this package is already removed from stable and testing.
https://tracker.debian.org/pkg/nc6 It appears I had it installed on my system, because I installed it long time ago, but obviously it stayed around as installed. $ apt-cache show netcat6 Package: netcat6 Status: install ok installed Priority: optional Section: net Installed-Size: 148 Maintainer: Guillaume Delacour <g...@iroqwa.org> Architecture: amd64 Source: nc6 Version: 1.0-8 Depends: libc6 (>= 2.2.5) Description: TCP/IP swiss army knife with IPv6 support A simple Unix utility which reads and writes data across network connections using TCP or UDP protocol. It is designed to be a reliable "back-end" tool that can be used directly or easily driven by other programs and scripts. At the same time it is a feature-rich network debugging and exploration tool. . Netcat6 is a rewrite of the original netcat with support for IPv6 and an enhanced support for UDP. Description-md5: 218ff9f8d25e03732fb2d6dbc7b3af6f Homepage: http://www.deepspace6.net/projects/netcat6.html $ Sorry for the noise. -- Witold Baryluk My PGP keys for 2017-02-17 - 2019-02-17: 5B8C 48CB 8B2F CF53 CA55 0995 16D9 6FA2 20A8 F130 https://functor.xyz/pgp/witold.baryluk-gmail.gpg.asc https://keys.mailvelope.com/pks/lookup?op=get&search=0x16D96FA220A8F130
