Netcat
-6
Forces nc to use IPv6 addresses only.
Ubuntu
CentOS
Debian
Arch
SUSE
Slackware
Alpine
Fedora
Verified: 2025-10-07
Syntax
$nc -6 [host] [port]
Examples
$nc -6 ::1 80
Typical use cases
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Standard usage
-6 --help
Note
IPv6-only option
Export