diff --git a/openstack/networking/v2/extensions/layer3/routers/requests.go b/openstack/networking/v2/extensions/layer3/routers/requests.go
index 670dc8f..7a95f95 100755
--- a/openstack/networking/v2/extensions/layer3/routers/requests.go
+++ b/openstack/networking/v2/extensions/layer3/routers/requests.go
@@ -1,6 +1,7 @@
 package routers
 
 import (
+	"fmt"
 	"strconv"
 
 	"github.com/racker/perigee"
@@ -22,6 +23,14 @@
 	return c.ServiceURL(version, resourcePath, id)
 }
 
+func addInterfaceURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL(version, resourcePath, id, "add_router_interface")
+}
+
+func removeInterfaceURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL(version, resourcePath, id, "remove_router_interface")
+}
+
 type ListOpts struct {
 	ID           string
 	Name         string
@@ -168,3 +177,60 @@
 	res.Err = err
 	return res
 }
+
+var errInvalidInterfaceOpts = fmt.Errorf("When adding a router interface you must provide either a subnet ID or a port ID")
+
+type InterfaceOpts struct {
+	SubnetID string
+	PortID   string
+}
+
+func AddInterface(c *gophercloud.ServiceClient, id string, opts InterfaceOpts) InterfaceResult {
+	var res InterfaceResult
+
+	// Validate
+	if (opts.SubnetID == "" && opts.PortID == "") || (opts.SubnetID != "" && opts.PortID != "") {
+		res.Err = errInvalidInterfaceOpts
+	}
+
+	type request struct {
+		SubnetID string `json:"subnet_id,omitempty"`
+		PortID   string `json:"port_id,omitempty"`
+	}
+
+	body := request{SubnetID: opts.SubnetID, PortID: opts.PortID}
+
+	_, err := perigee.Request("PUT", addInterfaceURL(c, id), perigee.Options{
+		MoreHeaders: c.Provider.AuthenticatedHeaders(),
+		ReqBody:     &body,
+		Results:     &res.Resp,
+		OkCodes:     []int{200},
+	})
+	res.Err = err
+	return res
+}
+
+func RemoveInterface(c *gophercloud.ServiceClient, id string, opts InterfaceOpts) InterfaceResult {
+	var res InterfaceResult
+
+	// Validate
+	if (opts.SubnetID == "" && opts.PortID == "") || (opts.SubnetID != "" && opts.PortID != "") {
+		res.Err = errInvalidInterfaceOpts
+	}
+
+	type request struct {
+		SubnetID string `json:"subnet_id,omitempty"`
+		PortID   string `json:"port_id,omitempty"`
+	}
+
+	body := request{SubnetID: opts.SubnetID, PortID: opts.PortID}
+
+	_, err := perigee.Request("PUT", removeInterfaceURL(c, id), perigee.Options{
+		MoreHeaders: c.Provider.AuthenticatedHeaders(),
+		ReqBody:     &body,
+		Results:     &res.Resp,
+		OkCodes:     []int{200},
+	})
+	res.Err = err
+	return res
+}
diff --git a/openstack/networking/v2/extensions/layer3/routers/requests_test.go b/openstack/networking/v2/extensions/layer3/routers/requests_test.go
index e005ed8..5aaefd8 100755
--- a/openstack/networking/v2/extensions/layer3/routers/requests_test.go
+++ b/openstack/networking/v2/extensions/layer3/routers/requests_test.go
@@ -258,3 +258,79 @@
 	res := Delete(serviceClient(), "4e8e5957-649f-477b-9e5b-f1f75b21c03c")
 	th.AssertNoErr(t, res.Err)
 }
+
+func TestAddInterface(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/v2.0/routers/4e8e5957-649f-477b-9e5b-f1f75b21c03c/add_router_interface", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "PUT")
+		th.TestHeader(t, r, "X-Auth-Token", tokenID)
+		th.TestHeader(t, r, "Content-Type", "application/json")
+		th.TestHeader(t, r, "Accept", "application/json")
+		th.TestJSONRequest(t, r, `
+{
+    "subnet_id": "a2f1f29d-571b-4533-907f-5803ab96ead1"
+}
+	`)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+
+		fmt.Fprintf(w, `
+{
+    "subnet_id": "0d32a837-8069-4ec3-84c4-3eef3e10b188",
+    "tenant_id": "017d8de156df4177889f31a9bd6edc00",
+    "port_id": "3f990102-4485-4df1-97a0-2c35bdb85b31",
+    "id": "9a83fa11-8da5-436e-9afe-3d3ac5ce7770"
+}
+`)
+	})
+
+	opts := InterfaceOpts{SubnetID: "a2f1f29d-571b-4533-907f-5803ab96ead1"}
+	res, err := AddInterface(serviceClient(), "4e8e5957-649f-477b-9e5b-f1f75b21c03c", opts).Extract()
+	th.AssertNoErr(t, err)
+
+	th.AssertEquals(t, "0d32a837-8069-4ec3-84c4-3eef3e10b188", res.SubnetID)
+	th.AssertEquals(t, "017d8de156df4177889f31a9bd6edc00", res.TenantID)
+	th.AssertEquals(t, "3f990102-4485-4df1-97a0-2c35bdb85b31", res.PortID)
+	th.AssertEquals(t, "9a83fa11-8da5-436e-9afe-3d3ac5ce7770", res.ID)
+}
+
+func TestRemoveInterface(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
+
+	th.Mux.HandleFunc("/v2.0/routers/4e8e5957-649f-477b-9e5b-f1f75b21c03c/remove_router_interface", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "PUT")
+		th.TestHeader(t, r, "X-Auth-Token", tokenID)
+		th.TestHeader(t, r, "Content-Type", "application/json")
+		th.TestHeader(t, r, "Accept", "application/json")
+		th.TestJSONRequest(t, r, `
+{
+		"subnet_id": "a2f1f29d-571b-4533-907f-5803ab96ead1"
+}
+	`)
+
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+
+		fmt.Fprintf(w, `
+{
+		"subnet_id": "0d32a837-8069-4ec3-84c4-3eef3e10b188",
+		"tenant_id": "017d8de156df4177889f31a9bd6edc00",
+		"port_id": "3f990102-4485-4df1-97a0-2c35bdb85b31",
+		"id": "9a83fa11-8da5-436e-9afe-3d3ac5ce7770"
+}
+`)
+	})
+
+	opts := InterfaceOpts{SubnetID: "a2f1f29d-571b-4533-907f-5803ab96ead1"}
+	res, err := RemoveInterface(serviceClient(), "4e8e5957-649f-477b-9e5b-f1f75b21c03c", opts).Extract()
+	th.AssertNoErr(t, err)
+
+	th.AssertEquals(t, "0d32a837-8069-4ec3-84c4-3eef3e10b188", res.SubnetID)
+	th.AssertEquals(t, "017d8de156df4177889f31a9bd6edc00", res.TenantID)
+	th.AssertEquals(t, "3f990102-4485-4df1-97a0-2c35bdb85b31", res.PortID)
+	th.AssertEquals(t, "9a83fa11-8da5-436e-9afe-3d3ac5ce7770", res.ID)
+}
diff --git a/openstack/networking/v2/extensions/layer3/routers/results.go b/openstack/networking/v2/extensions/layer3/routers/results.go
index 8b2e5ea..9067366 100755
--- a/openstack/networking/v2/extensions/layer3/routers/results.go
+++ b/openstack/networking/v2/extensions/layer3/routers/results.go
@@ -112,3 +112,28 @@
 }
 
 type DeleteResult commonResult
+
+type InterfaceInfo struct {
+	SubnetID string `json:"subnet_id" mapstructure:"subnet_id"`
+	PortID   string `json:"port_id" mapstructure:"port_id"`
+	ID       string `json:"id" mapstructure:"id"`
+	TenantID string `json:"tenant_id" mapstructure:"tenant_id"`
+}
+
+type InterfaceResult struct {
+	gophercloud.CommonResult
+}
+
+func (r InterfaceResult) Extract() (*InterfaceInfo, error) {
+	if r.Err != nil {
+		return nil, r.Err
+	}
+
+	var res *InterfaceInfo
+	err := mapstructure.Decode(r.Resp, &res)
+	if err != nil {
+		return nil, fmt.Errorf("Error decoding Neutron router interface: %v", err)
+	}
+
+	return res, nil
+}