diff --git a/prog/weaver/main.go b/prog/weaver/main.go
index c12f8e28..6620efcc 100644
--- a/prog/weaver/main.go
+++ b/prog/weaver/main.go
@@ -85,7 +85,7 @@ func main() {
 	mflag.IntVar(&config.ConnLimit, []string{"#connlimit", "#-connlimit", "-conn-limit"}, 30, "connection limit (0 for unlimited)")
 	mflag.BoolVar(&noDiscovery, []string{"#nodiscovery", "#-nodiscovery", "-no-discovery"}, false, "disable peer discovery")
 	mflag.IntVar(&bufSzMB, []string{"#bufsz", "-bufsz"}, 8, "capture buffer size in MB")
-	mflag.StringVar(&httpAddr, []string{"#httpaddr", "#-httpaddr", "-http-addr"}, fmt.Sprintf(":%d", weave.HTTPPort), "address to bind HTTP interface to (disabled if blank, absolute path indicates unix domain socket)")
+	mflag.StringVar(&httpAddr, []string{"#httpaddr", "#-httpaddr", "-http-addr"}, "", "address to bind HTTP interface to (disabled if blank, absolute path indicates unix domain socket)")
 	mflag.StringVar(&iprangeCIDR, []string{"#iprange", "#-iprange", "-ipalloc-range"}, "", "IP address range reserved for automatic allocation, in CIDR notation")
 	mflag.StringVar(&ipsubnetCIDR, []string{"#ipsubnet", "#-ipsubnet", "-ipalloc-default-subnet"}, "", "subnet to allocate within by default, in CIDR notation")
 	mflag.IntVar(&peerCount, []string{"#initpeercount", "#-initpeercount", "-init-peer-count"}, 0, "number of peers in network (for IP address allocation)")
diff --git a/proxy/proxy.go b/proxy/proxy.go
index 6618fe51..778742d4 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -17,7 +17,6 @@ import (
 	. "github.com/weaveworks/weave/common"
 	weavedocker "github.com/weaveworks/weave/common/docker"
 	"github.com/weaveworks/weave/nameserver"
-	"github.com/weaveworks/weave/router"
 )
 
 const (
@@ -490,7 +489,7 @@ func (proxy *Proxy) getDNSDomain() (domain string) {
 		weaveIP = "127.0.0.1"
 	}
 
-	url := fmt.Sprintf("http://%s:%d/domain", weaveIP, router.HTTPPort)
+	url := fmt.Sprintf("http://%s:6784/domain", weaveIP)
 	resp, err := http.Get(url)
 	if err != nil || resp.StatusCode != http.StatusOK {
 		return
diff --git a/router/router.go b/router/router.go
index 44c3fbdc..e02036bd 100644
--- a/router/router.go
+++ b/router/router.go
@@ -12,7 +12,6 @@ import (
 
 const (
 	Port                = 6783
-	HTTPPort            = Port + 1
 	MaxUDPPacketSize    = 65535
 	ChannelSize         = 16
 	TCPHeartbeat        = 30 * time.Second
diff --git a/weave b/weave
index 2da34e83..80bcd57a 100755
--- a/weave
+++ b/weave
@@ -1463,6 +1463,7 @@ launch_router() {
 
     if [ "$BRIDGE_TYPE" = fastdp ] ; then
         NETHOST_OPT="--net=host"
+        HTTP_IP=127.0.0.1
         # In case there is a lingering veth-weave netdev
         ip link del $ROUTER_HOSTNETNS_IFNAME >/dev/null 2>&1 || true
     fi
@@ -1481,7 +1482,8 @@ launch_router() {
         $(router_opts_$BRIDGE_TYPE) \
         --ipalloc-range "$IPRANGE" \
         --dns-effective-listen-address $DOCKER_BRIDGE_IP \
-        ${NETHOST_OPT:+$DNS_ROUTER_OPTS --http-addr 127.0.0.1:$HTTP_PORT} $NO_DNS_OPT \
+        ${NETHOST_OPT:+$DNS_ROUTER_OPTS} $NO_DNS_OPT \
+        --http-addr $HTTP_IP:$HTTP_PORT \
         --docker-api "unix:///var/run/docker.sock" "$@")
     with_container_netns_or_die $CONTAINER_NAME setup_router_iface_$BRIDGE_TYPE
     attach_router