IPV6

pub const IPV6 = struct {
    pub const UNICAST_HOPS = 4;
    pub const MULTICAST_IF = 9;
    pub const MULTICAST_HOPS = 10;
    pub const MULTICAST_LOOP = 11;
    pub const JOIN_GROUP = 12;
    pub const LEAVE_GROUP = 13;
    pub const PORTRANGE = 14;
    pub const @"2292PKTINFO" = 19;
    pub const @"2292HOPLIMIT" = 20;
    pub const @"2292NEXTHOP" = 21;
    pub const @"2292HOPOPTS" = 22;
    pub const @"2292DSTOPTS" = 23;
    pub const @"2292RTHDR" = 24;
    pub const @"2292PKTOPTIONS" = 25;
    pub const CHECKSUM = 26;
    pub const V6ONLY = 27;
    pub const BINDV6ONLY = V6ONLY;
    pub const FW_ADD = 30;
    pub const FW_DEL = 31;
    pub const FW_FLUSH = 32;
    pub const FW_ZERO = 33;
    pub const FW_GET = 34;
    pub const RTHDRDSTOPTS = 35;
    pub const RECVPKTINFO = 36;
    pub const RECVHOPLIMIT = 37;
    pub const RECVRTHDR = 38;
    pub const RECVHOPOPTS = 39;
    pub const RECVDSTOPTS = 40;
    pub const RECVRTHDRDSTOPTS = 41;
    pub const USE_MIN_MTU = 42;
    pub const RECVPATHMTU = 43;
    pub const PATHMTU = 44;
    pub const REACHCONF = 45;
    pub const PKTINFO = 46;
    pub const HOPLIMIT = 47;
    pub const NEXTHOP = 48;
    pub const HOPOPTS = 49;
    pub const DSTOPTS = 50;
    pub const RTHDR = 51;
    pub const PKTOPTIONS = 52;
    pub const RECVTCLASS = 57;
    pub const AUTOFLOWLABEL = 59;
    pub const TCLASS = 61;
    pub const DONTFRAG = 62;
    pub const PREFER_TEMPADDR = 63;
    pub const MSFILTER = 74;
    // Same namespace, but these are arguments rather than option names
    pub const RTHDR_LOOSE = 0;
    pub const RTHDR_STRICT = 1;
    pub const RTHDR_TYPE_0 = 0;
    pub const DEFAULT_MULTICAST_HOPS = 1;
    pub const DEFAULT_MULTICAST_LOOP = 1;
    pub const PORTRANGE_DEFAULT = 0;
    pub const PORTRANGE_HIGH = 1;
    pub const PORTRANGE_LOW = 2;
}