const vendor/golang.org/x/net/route.sysRTAX_IFA

one use

	vendor/golang.org/x/net/route (current package)
		zsys_darwin.go#L77: 	sysRTAX_IFA     = 0x5

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