References: golang.org/x/sys/unix.RTA

const golang.org/x/sys/unix.RTA_VIA

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L661: 	RTA_VIA            = 0x12

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)