shorewall6: Shorewall6 (An IPv6 iptables-based firewall for Linux systems) shorewall6: shorewall6: The Shoreline Firewall, more commonly known as "Shorewall", is a shorewall6: Netfilter (iptables) based firewall that can be used on a dedicated shorewall6: firewall system, a multi-function gateway/router/server or on a shorewall6: standalone GNU/Linux system. shorewall6: shorewall6: This package provides the IPv6 components for shorewall. shorewall6: shorewall6: shorewall6: