diff --git a/builtin/providers/openstack/resource_openstack_networking_secgroup_rule_v2.go b/builtin/providers/openstack/resource_openstack_networking_secgroup_rule_v2.go
index 39a675967..2a6075ab5 100644
--- a/builtin/providers/openstack/resource_openstack_networking_secgroup_rule_v2.go
+++ b/builtin/providers/openstack/resource_openstack_networking_secgroup_rule_v2.go
@@ -236,6 +236,42 @@ func resourceNetworkingSecGroupRuleV2DetermineProtocol(v string) rules.RuleProto
 		protocol = rules.ProtocolUDP
 	case "icmp":
 		protocol = rules.ProtocolICMP
+	case "ah":
+		protocol = rules.ProtocolAH
+	case "dccp":
+		protocol = rules.ProtocolDCCP
+	case "egp":
+		protocol = rules.ProtocolEGP
+	case "esp":
+		protocol = rules.ProtocolESP
+	case "gre":
+		protocol = rules.ProtocolGRE
+	case "igmp":
+		protocol = rules.ProtocolIGMP
+	case "ipv6-encap":
+		protocol = rules.ProtocolIPv6Encap
+	case "ipv6-frag":
+		protocol = rules.ProtocolIPv6Frag
+	case "ipv6-icmp":
+		protocol = rules.ProtocolIPv6ICMP
+	case "ipv6-nonxt":
+		protocol = rules.ProtocolIPv6NoNxt
+	case "ipv6-opts":
+		protocol = rules.ProtocolIPv6Opts
+	case "ipv6-route":
+		protocol = rules.ProtocolIPv6Route
+	case "ospf":
+		protocol = rules.ProtocolOSPF
+	case "pgm":
+		protocol = rules.ProtocolPGM
+	case "rsvp":
+		protocol = rules.ProtocolRSVP
+	case "sctp":
+		protocol = rules.ProtocolSCTP
+	case "udplite":
+		protocol = rules.ProtocolUDPLite
+	case "vrrp":
+		protocol = rules.ProtocolVRRP
 	}
 
 	return protocol
diff --git a/website/source/docs/providers/openstack/r/networking_secgroup_rule_v2.html.markdown b/website/source/docs/providers/openstack/r/networking_secgroup_rule_v2.html.markdown
index 67db99516..a0c181493 100644
--- a/website/source/docs/providers/openstack/r/networking_secgroup_rule_v2.html.markdown
+++ b/website/source/docs/providers/openstack/r/networking_secgroup_rule_v2.html.markdown
@@ -46,9 +46,28 @@ The following arguments are supported:
 * `ethertype` - (Required) The layer 3 protocol type, valid values are __IPv4__
     or __IPv6__. Changing this creates a new security group rule.
 
-* `protocol` - (Optional) The layer 4 protocol type, valid values are __tcp__,
-    __udp__ or __icmp__. This is required if you want to specify a port range.
-    Changing this creates a new security group rule.
+* `protocol` - (Optional) The layer 4 protocol type, valid values are following. Changing this creates a new security group rule. This is required if you want to specify a port range.
+  * __tcp__
+  * __udp__
+  * __icmp__
+  * __ah__
+  * __dccp__
+  * __egp__
+  * __esp__
+  * __gre__
+  * __igmp__
+  * __ipv6-encap__
+  * __ipv6-frag__
+  * __ipv6-icmp__
+  * __ipv6-nonxt__
+  * __ipv6-opts__
+  * __ipv6-route__
+  * __ospf__
+  * __pgm__
+  * __rsvp__
+  * __sctp__
+  * __udplite__
+  * __vrrp__
 
 * `port_range_min` - (Optional) The lower part of the allowed port range, valid
     integer value needs to be between 1 and 65535. Changing this creates a new