diff --git a/xos/models/venb.xproto b/xos/models/venb.xproto
index e021cc7..f40ce7e 100644
--- a/xos/models/venb.xproto
+++ b/xos/models/venb.xproto
@@ -5,6 +5,8 @@
     option verbose_name = "Virtual eNodeB Service";
     required string login_user = 1 [help_text = "vENB VM login user", default = "cfguser", max_length = 32, content_type = "stripped", null = False, db_index = False, blank = False];
     required string login_password = 2 [help_text = "vENB VM login password", default = "cfguser", max_length = 32, content_type = "stripped", null = False, db_index = False, blank = False];
+    required string tas_ip = 3 [help_text = "TAS IP address", default = "103.0.0.100", max_length = 32, null = False, db_index = False, blank = False];
+    required string ntp_ip = 4 [help_text = "NTP server IP address", default = "193.0.0.222", max_length = 32, null = False, db_index = False, blank = False];
 }
 
 message VENBServiceInstance (TenantWithContainer){