Merge pull request #5133 from crosbymichael/revert-hairpin

Revert "Support hairpin NAT without going through docker server"
Upstream-commit: ec9190cdd253a011881f646c8d6140cb1f0fcf9d
Component: engine

components/engine/pkg/iptables/iptables.go

@@ -66,6 +66,7 @@ func (c *Chain) Forward(action Action, ip net.IP, port int, proto, dest_addr str
 		"-p", proto,
 		"-d", daddr,
 		"--dport", strconv.Itoa(port),
+		"!", "-i", c.Bridge,
 		"-j", "DNAT",
 		"--to-destination", net.JoinHostPort(dest_addr, strconv.Itoa(dest_port))); err != nil {
 		return err