diff --git a/openstack/compute/v2/extensions/defsecrules/fixtures.go b/openstack/compute/v2/extensions/defsecrules/fixtures.go
index 9b1480f..c28e492 100644
--- a/openstack/compute/v2/extensions/defsecrules/fixtures.go
+++ b/openstack/compute/v2/extensions/defsecrules/fixtures.go
@@ -3,7 +3,6 @@
 import (
 	"fmt"
 	"net/http"
-	"strconv"
 	"testing"
 
 	th "github.com/rackspace/gophercloud/testhelper"
@@ -25,7 +24,7 @@
   "security_group_default_rules": [
     {
       "from_port": 80,
-      "id": 1,
+      "id": "{ruleID}",
       "ip_protocol": "TCP",
       "ip_range": {
         "cidr": "10.10.10.0/24"
@@ -61,7 +60,7 @@
 {
   "security_group_default_rule": {
     "from_port": 80,
-    "id": 1,
+    "id": "{ruleID}",
     "ip_protocol": "TCP",
     "ip_range": {
       "cidr": "10.10.12.0/24"
@@ -73,8 +72,8 @@
 	})
 }
 
-func mockGetRuleResponse(t *testing.T, ruleID int) {
-	url := rootPath + "/" + strconv.Itoa(ruleID)
+func mockGetRuleResponse(t *testing.T, ruleID string) {
+	url := rootPath + "/" + ruleID
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "GET")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
@@ -85,7 +84,7 @@
 		fmt.Fprintf(w, `
 {
   "security_group_default_rule": {
-    "id": 1,
+    "id": "{ruleID}",
     "from_port": 80,
     "to_port": 80,
     "ip_protocol": "TCP",
@@ -98,8 +97,8 @@
 	})
 }
 
-func mockDeleteRuleResponse(t *testing.T, ruleID int) {
-	url := rootPath + "/" + strconv.Itoa(ruleID)
+func mockDeleteRuleResponse(t *testing.T, ruleID string) {
+	url := rootPath + "/" + ruleID
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "DELETE")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
diff --git a/openstack/compute/v2/extensions/defsecrules/requests.go b/openstack/compute/v2/extensions/defsecrules/requests.go
index 702a7a7..7d19741 100644
--- a/openstack/compute/v2/extensions/defsecrules/requests.go
+++ b/openstack/compute/v2/extensions/defsecrules/requests.go
@@ -86,7 +86,7 @@
 }
 
 // Get will return details for a particular default rule.
-func Get(client *gophercloud.ServiceClient, id int) GetResult {
+func Get(client *gophercloud.ServiceClient, id string) GetResult {
 	var result GetResult
 
 	_, result.Err = perigee.Request("GET", resourceURL(client, id), perigee.Options{
@@ -99,7 +99,7 @@
 }
 
 // Delete will permanently delete a default rule from the project.
-func Delete(client *gophercloud.ServiceClient, id int) gophercloud.ErrResult {
+func Delete(client *gophercloud.ServiceClient, id string) gophercloud.ErrResult {
 	var result gophercloud.ErrResult
 
 	_, result.Err = perigee.Request("DELETE", resourceURL(client, id), perigee.Options{
diff --git a/openstack/compute/v2/extensions/defsecrules/requests_test.go b/openstack/compute/v2/extensions/defsecrules/requests_test.go
index 5f43b34..d4ebe87 100644
--- a/openstack/compute/v2/extensions/defsecrules/requests_test.go
+++ b/openstack/compute/v2/extensions/defsecrules/requests_test.go
@@ -9,7 +9,7 @@
 	"github.com/rackspace/gophercloud/testhelper/client"
 )
 
-const ruleID = 1
+const ruleID = "{ruleID}"
 
 func TestList(t *testing.T) {
 	th.SetupHTTP()
diff --git a/openstack/compute/v2/extensions/defsecrules/urls.go b/openstack/compute/v2/extensions/defsecrules/urls.go
index 07244f7..cc928ab 100644
--- a/openstack/compute/v2/extensions/defsecrules/urls.go
+++ b/openstack/compute/v2/extensions/defsecrules/urls.go
@@ -1,15 +1,11 @@
 package defsecrules
 
-import (
-	"strconv"
-
-	"github.com/rackspace/gophercloud"
-)
+import "github.com/rackspace/gophercloud"
 
 const rulepath = "os-security-group-default-rules"
 
-func resourceURL(c *gophercloud.ServiceClient, id int) string {
-	return c.ServiceURL(rulepath, strconv.Itoa(id))
+func resourceURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL(rulepath, id)
 }
 
 func rootURL(c *gophercloud.ServiceClient) string {
diff --git a/openstack/compute/v2/extensions/secgroups/fixtures.go b/openstack/compute/v2/extensions/secgroups/fixtures.go
index d45609c..b205678 100644
--- a/openstack/compute/v2/extensions/secgroups/fixtures.go
+++ b/openstack/compute/v2/extensions/secgroups/fixtures.go
@@ -16,7 +16,7 @@
   "security_groups": [
     {
       "description": "default",
-      "id": 1,
+      "id": "{groupID}",
       "name": "default",
       "rules": [],
       "tenant_id": "openstack"
@@ -71,7 +71,7 @@
 {
   "security_group": {
     "description": "something",
-    "id": 1,
+    "id": "{groupID}",
     "name": "test",
     "rules": [],
     "tenant_id": "openstack"
@@ -81,8 +81,8 @@
 	})
 }
 
-func mockUpdateGroupResponse(t *testing.T, groupID int) {
-	url := fmt.Sprintf("%s/%d", rootPath, groupID)
+func mockUpdateGroupResponse(t *testing.T, groupID string) {
+	url := fmt.Sprintf("%s/%s", rootPath, groupID)
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "PUT")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
@@ -103,7 +103,7 @@
 {
   "security_group": {
     "description": "something",
-    "id": 1,
+    "id": "{groupID}",
     "name": "new_name",
     "rules": [],
     "tenant_id": "openstack"
@@ -113,8 +113,8 @@
 	})
 }
 
-func mockGetGroupsResponse(t *testing.T, groupID int) {
-	url := fmt.Sprintf("%s/%d", rootPath, groupID)
+func mockGetGroupsResponse(t *testing.T, groupID string) {
+	url := fmt.Sprintf("%s/%s", rootPath, groupID)
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "GET")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
@@ -126,7 +126,7 @@
 {
   "security_group": {
     "description": "default",
-    "id": 1,
+    "id": "{groupID}",
     "name": "default",
     "rules": [
       {
@@ -137,11 +137,11 @@
         },
         "ip_protocol": "TCP",
         "to_port": 85,
-        "parent_group_id": 1,
+        "parent_group_id": "{groupID}",
         "ip_range": {
 						"cidr": "0.0.0.0"
 				},
-        "id": 2
+        "id": "{ruleID}"
       }
     ],
     "tenant_id": "openstack"
@@ -151,8 +151,8 @@
 	})
 }
 
-func mockDeleteGroupResponse(t *testing.T, groupID int) {
-	url := fmt.Sprintf("%s/%d", rootPath, groupID)
+func mockDeleteGroupResponse(t *testing.T, groupID string) {
+	url := fmt.Sprintf("%s/%s", rootPath, groupID)
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "DELETE")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
@@ -172,7 +172,7 @@
     "from_port": 22,
     "ip_protocol": "TCP",
     "to_port": 22,
-    "parent_group_id": 1,
+    "parent_group_id": "{groupID}",
     "cidr": "0.0.0.0/0"
   }
 }	`)
@@ -187,18 +187,18 @@
     "group": {},
     "ip_protocol": "TCP",
     "to_port": 22,
-    "parent_group_id": 1,
+    "parent_group_id": "{groupID}",
     "ip_range": {
       "cidr": "0.0.0.0/0"
     },
-    "id": 2
+    "id": "{ruleID}"
   }
 }`)
 	})
 }
 
-func mockDeleteRuleResponse(t *testing.T, ruleID int) {
-	url := fmt.Sprintf("/os-security-group-rules/%d", ruleID)
+func mockDeleteRuleResponse(t *testing.T, ruleID string) {
+	url := fmt.Sprintf("/os-security-group-rules/%s", ruleID)
 	th.Mux.HandleFunc(url, func(w http.ResponseWriter, r *http.Request) {
 		th.TestMethod(t, r, "DELETE")
 		th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
diff --git a/openstack/compute/v2/extensions/secgroups/requests.go b/openstack/compute/v2/extensions/secgroups/requests.go
index 820146e..0a87068 100644
--- a/openstack/compute/v2/extensions/secgroups/requests.go
+++ b/openstack/compute/v2/extensions/secgroups/requests.go
@@ -119,7 +119,7 @@
 
 // Update will modify the mutable properties of a security group, notably its
 // name and description.
-func Update(client *gophercloud.ServiceClient, id int, opts UpdateOptsBuilder) UpdateResult {
+func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) UpdateResult {
 	var result UpdateResult
 
 	reqBody, err := opts.ToSecGroupUpdateMap()
@@ -139,7 +139,7 @@
 }
 
 // Get will return details for a particular security group.
-func Get(client *gophercloud.ServiceClient, id int) GetResult {
+func Get(client *gophercloud.ServiceClient, id string) GetResult {
 	var result GetResult
 
 	_, result.Err = perigee.Request("GET", resourceURL(client, id), perigee.Options{
@@ -152,7 +152,7 @@
 }
 
 // Delete will permanently delete a security group from the project.
-func Delete(client *gophercloud.ServiceClient, id int) gophercloud.ErrResult {
+func Delete(client *gophercloud.ServiceClient, id string) gophercloud.ErrResult {
 	var result gophercloud.ErrResult
 
 	_, result.Err = perigee.Request("DELETE", resourceURL(client, id), perigee.Options{
@@ -167,7 +167,7 @@
 // existing security group.
 type CreateRuleOpts struct {
 	// Required - the ID of the group that this rule will be added to.
-	ParentGroupID int `json:"parent_group_id"`
+	ParentGroupID string `json:"parent_group_id"`
 
 	// Required - the lower bound of the port range that will be opened.
 	FromPort int `json:"from_port"`
@@ -199,7 +199,7 @@
 func (opts CreateRuleOpts) ToRuleCreateMap() (map[string]interface{}, error) {
 	rule := make(map[string]interface{})
 
-	if opts.ParentGroupID == 0 {
+	if opts.ParentGroupID == "" {
 		return rule, errors.New("A ParentGroupID must be set")
 	}
 	if opts.FromPort == 0 {
@@ -253,7 +253,7 @@
 }
 
 // DeleteRule will permanently delete a rule from a security group.
-func DeleteRule(client *gophercloud.ServiceClient, id int) gophercloud.ErrResult {
+func DeleteRule(client *gophercloud.ServiceClient, id string) gophercloud.ErrResult {
 	var result gophercloud.ErrResult
 
 	_, result.Err = perigee.Request("DELETE", resourceRuleURL(client, id), perigee.Options{
diff --git a/openstack/compute/v2/extensions/secgroups/requests_test.go b/openstack/compute/v2/extensions/secgroups/requests_test.go
index 667db59..9f62d05 100644
--- a/openstack/compute/v2/extensions/secgroups/requests_test.go
+++ b/openstack/compute/v2/extensions/secgroups/requests_test.go
@@ -10,8 +10,8 @@
 
 const (
 	serverID = "{serverID}"
-	groupID  = 1
-	ruleID   = 2
+	groupID  = "{groupID}"
+	ruleID   = "{ruleID}"
 )
 
 func TestList(t *testing.T) {
diff --git a/openstack/compute/v2/extensions/secgroups/results.go b/openstack/compute/v2/extensions/secgroups/results.go
index e2ac853..2d19fab 100644
--- a/openstack/compute/v2/extensions/secgroups/results.go
+++ b/openstack/compute/v2/extensions/secgroups/results.go
@@ -9,8 +9,10 @@
 
 // SecurityGroup represents a security group.
 type SecurityGroup struct {
-	// The unique ID of the group.
-	ID int
+	// The unique ID of the group. If Neutron is installed, this ID will be
+	// represented as a string UUID; if Neutron is not installed, it will be a
+	// numeric ID. For the sake of consistency, we always cast it to a string.
+	ID string
 
 	// The human-readable name of the group, which needs to be unique.
 	Name string
@@ -28,8 +30,10 @@
 // Rule represents a security group rule, a policy which determines how a
 // security group operates and what inbound traffic it allows in.
 type Rule struct {
-	// The unique ID
-	ID int
+	// The unique ID. If Neutron is installed, this ID will be
+	// represented as a string UUID; if Neutron is not installed, it will be a
+	// numeric ID. For the sake of consistency, we always cast it to a string.
+	ID string
 
 	// The lower bound of the port range which this security group should open up
 	FromPort int `mapstructure:"from_port"`
@@ -44,7 +48,7 @@
 	IPRange IPRange `mapstructure:"ip_range"`
 
 	// The security group ID to which this rule belongs
-	ParentGroupID int `mapstructure:"parent_group_id"`
+	ParentGroupID string `mapstructure:"parent_group_id"`
 
 	// Not documented.
 	Group Group
diff --git a/openstack/compute/v2/extensions/secgroups/urls.go b/openstack/compute/v2/extensions/secgroups/urls.go
index 2363d20..f4760b6 100644
--- a/openstack/compute/v2/extensions/secgroups/urls.go
+++ b/openstack/compute/v2/extensions/secgroups/urls.go
@@ -1,18 +1,14 @@
 package secgroups
 
-import (
-	"strconv"
-
-	"github.com/rackspace/gophercloud"
-)
+import "github.com/rackspace/gophercloud"
 
 const (
 	secgrouppath = "os-security-groups"
 	rulepath     = "os-security-group-rules"
 )
 
-func resourceURL(c *gophercloud.ServiceClient, id int) string {
-	return c.ServiceURL(secgrouppath, strconv.Itoa(id))
+func resourceURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL(secgrouppath, id)
 }
 
 func rootURL(c *gophercloud.ServiceClient) string {
@@ -27,8 +23,8 @@
 	return c.ServiceURL(rulepath)
 }
 
-func resourceRuleURL(c *gophercloud.ServiceClient, id int) string {
-	return c.ServiceURL(rulepath, strconv.Itoa(id))
+func resourceRuleURL(c *gophercloud.ServiceClient, id string) string {
+	return c.ServiceURL(rulepath, id)
 }
 
 func serverActionURL(c *gophercloud.ServiceClient, id string) string {