.\" Generated by scdoc 1.11.2 .\" Complete documentation for this program is not available as a GNU info page .ie \n(.g .ds Aq \(aq .el .ds Aq ' .nh .ad l .\" Begin generated content: .TH "interfaces-forward" "5" "2024-03-13" .P .SH NAME .P \fBinterfaces-forward\fR - forwarding vocabulary for the interfaces(5) file format .P .SH DESCRIPTION .P Linux allows for configuration of IP packet forwarding behavior on a protocol and interface basis.\& The following options allow for this configuration.\& .P .SH FORWARDING-RELATED OPTIONS .P The forward executor will only modify the sysctl configuration if these options are provided, otherwise other mechanisms such as /etc/sysctl.\&conf may be used.\& .P \fBforward-ipv4\fR \fIyes|no\fR .RS 4 Whether the interface should forward unicast IPv4 packets.\& .P .RE \fBforward-ipv6\fR \fIyes|no\fR .RS 4 Whether the interface should forward unicast IPv6 packets.\& .P .RE \fBforward-ipv4-mc\fR \fIyes|no\fR .RS 4 Whether the interface should forward multicast IPv4 packets.\& .P .RE \fBforward-ipv6-mc\fR \fIyes|no\fR .RS 4 Whether the interface should forward multicast IPv6 packets.\& .P .RE .SH EXAMPLES .P The typical home router scenario will want to forward both IPv4 and IPv6 packets: .P .nf .RS 4 iface WAN use dhcp forward-ipv4 yes forward-ipv6 yes iface LAN address 192\&.168\&.0\&.1/24 forward-ipv4 yes forward-ipv6 yes .fi .RE .P .SH AUTHORS .P Ariadne Conill