diff --git a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/network_management_client_enums.py b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/network_management_client_enums.py
index e3fbde3e5a99..9f64e3c5da0c 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/network_management_client_enums.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/network_management_client_enums.py
@@ -24,7 +24,6 @@ class SecurityRuleProtocol(str, Enum):
     udp = "Udp"
     icmp = "Icmp"
     esp = "Esp"
-    ah = "Ah"
     asterisk = "*"
 
 
diff --git a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule.py b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule.py
index f08624f7a056..611bcc177faa 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule.py
@@ -22,8 +22,8 @@ class SecurityRule(SubResource):
     :param description: A description for this rule. Restricted to 140 chars.
     :type description: str
     :param protocol: Required. Network protocol this rule applies to. Possible
-     values are 'Tcp', 'Udp', 'Icmp', 'Esp', 'Ah', and '*'. Possible values
-     include: 'Tcp', 'Udp', 'Icmp', 'Esp', 'Ah', '*'
+     values are 'Tcp', 'Udp', 'Icmp', 'Esp', and '*'. Possible values include:
+     'Tcp', 'Udp', 'Icmp', 'Esp', '*'
     :type protocol: str or
      ~azure.mgmt.network.v2019_02_01.models.SecurityRuleProtocol
     :param source_port_range: The source port or range. Integer or range
diff --git a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule_py3.py b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule_py3.py
index 49b20169492d..134d19a675b4 100644
--- a/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule_py3.py
+++ b/azure-mgmt-network/azure/mgmt/network/v2019_02_01/models/security_rule_py3.py
@@ -22,8 +22,8 @@ class SecurityRule(SubResource):
     :param description: A description for this rule. Restricted to 140 chars.
     :type description: str
     :param protocol: Required. Network protocol this rule applies to. Possible
-     values are 'Tcp', 'Udp', 'Icmp', 'Esp', 'Ah', and '*'. Possible values
-     include: 'Tcp', 'Udp', 'Icmp', 'Esp', 'Ah', '*'
+     values are 'Tcp', 'Udp', 'Icmp', 'Esp', and '*'. Possible values include:
+     'Tcp', 'Udp', 'Icmp', 'Esp', '*'
     :type protocol: str or
      ~azure.mgmt.network.v2019_02_01.models.SecurityRuleProtocol
     :param source_port_range: The source port or range. Integer or range