Merge pull request #4442 from ibuildthecloud/hairpin-nat

Support hairpin NAT without going through docker server
Upstream-commit: d2327006d659595e88da653e054f826401b05727
Component: engine

components/engine/pkg/iptables/iptables.go

@@ -66,7 +66,6 @@ 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