diff --git a/openair3/NAS/UE/ESM/SAP/esm_send.c b/openair3/NAS/UE/ESM/SAP/esm_send.c
index ab5341062a697d78286d9037913f3cf228a74bc5..51cd96fdc88bcb532894b1a72e8b7602a4c98209 100755
--- a/openair3/NAS/UE/ESM/SAP/esm_send.c
+++ b/openair3/NAS/UE/ESM/SAP/esm_send.c
@@ -181,6 +181,35 @@ int esm_send_pdn_connectivity_request(int pti, int is_emergency, int pdn_type,
     }
   }
 
+  /* Add PCO */
+# define CONFIGURATION_PROTOCOL_PPP          0
+# define PROTOCOL_ID_IPCP                    0x8021
+# define PROTOCOL_ID_DNS_SERVER_IPV4_ADDRESS 0x000D
+# define PROTOCOL_ID_IP_ADDR_NAS_SIGNALING   0x000A
+
+  msg->presencemask |= PDN_CONNECTIVITY_REQUEST_PROTOCOL_CONFIGURATION_OPTIONS_PRESENT;
+  msg->protocolconfigurationoptions.configurationprotol = CONFIGURATION_PROTOCOL_PPP;
+  msg->protocolconfigurationoptions.num_protocol_id_or_container_id = 3;
+  msg->protocolconfigurationoptions.protocolid[0] = PROTOCOL_ID_IPCP;
+  msg->protocolconfigurationoptions.lengthofprotocolid[0] = 16; /* Size of PROTOCOL_ID_IPCP */
+  msg->protocolconfigurationoptions.protocolidcontents[0].value = (uint8_t *)
+  /* PROTOCOL_ID_IPCP data */
+  /* the format is as of RFC 1331 (see page 27) */
+  "\x01"                  /* Configure-Request                    */
+  "\x00"                  /* Indentifier (set to 0)               */
+  "\x00\x10"              /* Length (16 bytes)                    */
+    "\x81"                /* Type = Primary DNS - see RFC 1877    */
+    "\x06"                /* length                               */
+    "\x00\x00\x00\x00"    /* IP address set to 0                  */
+    "\x83"                /* Type = Secondary DNS - see RFC 1877  */
+    "\x06"                /* length                               */
+    "\x00\x00\x00\x00";   /* IP address set to 0                  */
+  msg->protocolconfigurationoptions.protocolidcontents[0].length = 16;
+  msg->protocolconfigurationoptions.protocolid[1] = PROTOCOL_ID_DNS_SERVER_IPV4_ADDRESS;
+  msg->protocolconfigurationoptions.lengthofprotocolid[1] = 0x00;
+  msg->protocolconfigurationoptions.protocolid[2] = PROTOCOL_ID_IP_ADDR_NAS_SIGNALING;
+  msg->protocolconfigurationoptions.lengthofprotocolid[2] = 0x00;
+
   LOG_TRACE(INFO, "ESM-SAP   - Send PDN Connectivity Request message "
             "(pti=%d, ebi=%d)",
             msg->proceduretransactionidentity, msg->epsbeareridentity);