const syscall.IPPROTO_IPV6

7 uses

	syscall (current package)
		zerrors_darwin_arm64.go#L443: 	IPPROTO_IPV6                      = 0x29

	net
		ipsock_posix.go#L56: 		syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, probes[i].value)
		sockopt_bsd.go#L25: 			syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_PORTRANGE, syscall.IPV6_PORTRANGE_HIGH)
		sockopt_bsd.go#L32: 		syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, boolint(ipv6only))
		sockoptip_posix.go#L29: 	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_IPV6, syscall.IPV6_MULTICAST_IF, v)
		sockoptip_posix.go#L35: 	err := fd.pfd.SetsockoptInt(syscall.IPPROTO_IPV6, syscall.IPV6_MULTICAST_LOOP, boolint(v))
		sockoptip_posix.go#L46: 	err := fd.pfd.SetsockoptIPv6Mreq(syscall.IPPROTO_IPV6, syscall.IPV6_JOIN_GROUP, mreq)

The pages are generated with Golds v0.2.8-preview. (GOOS=darwin GOARCH=arm64)