diff --git a/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_CommonIE_Types.ttcn b/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_CommonIE_Types.ttcn
index 9d890281e..99e90efb7 100644
--- a/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_CommonIE_Types.ttcn
+++ b/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_CommonIE_Types.ttcn
@@ -100,7 +100,7 @@ type record ML3_NotifySS_Arg
 //============================================================================
 
 // 10.5.1.1 Cell Identity
-type record CellIdentity
+type record CellIdentityTV
 {
   OCT1  elementIdentifier,
   OCT2  cIvalue
diff --git a/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_Types.ttcn b/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_Types.ttcn
index 0165481d9..6e28c0ebc 100644
--- a/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_Types.ttcn
+++ b/MobileL3_v13.4.0_CNL113832_LATEST/src/MobileL3_Types.ttcn
@@ -25,7 +25,7 @@ import from MobileL3_MM_Types       all;
 import from MobileL3_CC_Types       all;
 import from MobileL3_RRM_Types      all;
 import from MobileL3_SMS_Types      all;
-import from MobileL3_SS_Types       all;
+//import from MobileL3_SS_Types       all;
 
 external function enc_PDU_L3_MS_SGSN(in PDU_L3_MS_SGSN pdu) return octetstring
 with { extension "prototype(convert)" extension "encode(RAW)" }
@@ -283,7 +283,7 @@ type union ML3_Discr_NW_MS
   //<-24.011, imported from L3_SMS_Types
   octetstring        gprs_sm,  // GPRS session management messages    <- not required in MSC
   // but impl. as L3_GMM_MS_SGSN in L3_GSM_SGSN_MS_Types
-  PDU_ML3_SS_NW_MS   ss,       // non call related SS messages
+  octetstring  ss,       // non call related SS messages
   //<- 24.080 ASN1 or implemented by ethgbh
   octetstring        loc,      // Location services(LCS)              <- 24.030
   octetstring        reserved
@@ -347,7 +347,7 @@ type union ML3_Discr_MS_NW
   octetstring        gprs_mm,  // GPRS mobility management messages
   L3_SMS_MS_SGSN     sms,      // SMS messages
   octetstring        gprs_sm,  // GPRS session management messages
-  PDU_ML3_SS_MS_NW   ss,  // non call related SS messages
+  octetstring        ss,  // non call related SS messages
   octetstring        loc, // Location services
   octetstring        reserved
 };
diff --git a/ggsn_tests/GGSN_Tests.cfg b/ggsn_tests/GGSN_Tests.cfg
index a7f4681f0..6954e1df1 100644
--- a/ggsn_tests/GGSN_Tests.cfg
+++ b/ggsn_tests/GGSN_Tests.cfg
@@ -11,13 +11,14 @@ LoggerPlugins := { JUnitLogger := "libjunitlogger2" }
 system.*.lazy_conn_id_handling := "YES"
 
 [MODULE_PARAMETERS]
-GGSN_Tests.m_bind_ip_gtpc := "127.0.42.1"
-GGSN_Tests.m_bind_ip_gtpu := "127.0.42.1"
-GGSN_Tests.m_ggsn_ip_gtpc := "127.0.23.1"
-GGSN_Tests.m_ggsn_ip_gtpu := "127.0.23.1"
+GGSN_Tests.m_bind_ip_gtpc := "172.18.0.202"
+GGSN_Tests.m_bind_ip_gtpu := "172.18.0.202"
+GGSN_Tests.m_ggsn_ip_gtpc := "172.18.0.201"
+GGSN_Tests.m_ggsn_ip_gtpu := "172.18.0.201"
+GGSN_Tests.m_pdn_sock_host_v4 = "172.17.0.2"
 
 [EXECUTE]
-#GGSN_Tests.TC_dummy
+GGSN_Tests.TC_dummy
 GGSN_Tests.TC_pdp4_act_deact
 GGSN_Tests.TC_pdp4_act_deact_ipcp
 GGSN_Tests.TC_pdp4_act_deact_pcodns
@@ -27,3 +28,6 @@ GGSN_Tests.TC_pdp6_act_deact_pcodns
 GGSN_Tests.TC_pdp6_act_deact_icmp6
 
 GGSN_Tests.TC_echo_req_resp
+
+GGSN_Tests.TC_pdp4_act_deact_ipcp_udp
+
diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn
index 358945a95..eea7058a8 100644
--- a/ggsn_tests/GGSN_Tests.ttcn
+++ b/ggsn_tests/GGSN_Tests.ttcn
@@ -11,6 +11,7 @@ module GGSN_Tests {
 	import from IP_Types all;
 	import from ICMPv6_Types all;
 	import from Native_Functions all;
+	import from UDP_Types all;
 
 	const integer GTP0_PORT := 3386;
 	const integer GTP1C_PORT := 2123;
@@ -22,6 +23,10 @@ module GGSN_Tests {
 
 		charstring m_ggsn_ip_gtpc := "127.0.0.6";
 		charstring m_ggsn_ip_gtpu := "127.0.0.6";
+
+		/* IPv4 address on the external PDN for testing user plane */
+		charstring m_pdn_sock_host_v4 := "192.168.0.1";
+		integer m_pdn_sock_port_v4 := 5555;
 	}
 
 	type set PdpContext {
@@ -32,6 +37,7 @@ module GGSN_Tests {
 		ProtConfigOptions	pco_neg optional,
 		EndUserAddress	eua,
 		OCT16		ip6_prefix optional,
+		OCT4		ip4_addr optional,
 		BIT4		nsapi,
 		/* TEI (Data) local side */
 		OCT4		teid,
@@ -46,6 +52,7 @@ module GGSN_Tests {
 	type component GT_CT {
 		port GTPC_PT GTPC;
 		port GTPU_PT GTPU;
+		port IPL4asp_PT UDP;
 
 		var boolean g_initialized := false;
 
@@ -53,11 +60,16 @@ module GGSN_Tests {
 		/* FIXME: unify with g_bind_ip + parse from config file */
 		var OCT4 g_sgsn_ip_c;
 		var OCT4 g_sgsn_ip_u;
+		var OCT4 g_pdn_sock_ip;
 		/* FIXME: parse remName from config file */
 		var GtpPeer g_peer_c := { connId := 0, remName := m_ggsn_ip_gtpc, remPort := GTP1C_PORT };
 		var GtpPeer g_peer_u := { connId := 0, remName := m_ggsn_ip_gtpu, remPort := GTP1U_PORT };
+		/* address to which we can bind an IP socket to simulate an internet host */
 		timer T_default := 3.0;
 
+		/* UDP connection ID for UDP test port */
+		var integer g_udp_connId;
+
 		/* next to-be-sent GTP-C sequence number */
 		var uint16_t g_c_seq_nr;
 		/* next to-be-sent GTP-U sequence number */
@@ -72,6 +84,7 @@ module GGSN_Tests {
 
 		g_sgsn_ip_c := f_inet_addr(m_bind_ip_gtpc);
 		g_sgsn_ip_u := f_inet_addr(m_bind_ip_gtpu);
+		g_pdn_sock_ip := f_inet_haddr(m_pdn_sock_host_v4);
 
 		var Result res;
 		map(self:GTPC, system:GTPC);
@@ -83,6 +96,10 @@ module GGSN_Tests {
 		res := GTP_CodecPort_CtrlFunct.f_GTPU_listen(GTPU, m_bind_ip_gtpu, GTP1U_PORT, {udp:={}});
 		g_peer_u.connId:= res.connId;
 
+		map(self:UDP, system:IPL4);
+		res := IPL4asp_PortType.f_IPL4_listen(UDP, m_pdn_sock_host_v4, m_pdn_sock_port_v4, {udp:={}});
+		g_udp_connId := res.connId;
+
 		g_restart_ctr := f_rnd_octstring(1);
 		g_c_seq_nr := f_rnd_int(65535);
 		g_d_seq_nr := f_rnd_int(65535);
@@ -204,7 +221,7 @@ module GGSN_Tests {
 	template EndUserAddress tr_EuaIPv4(template OCT4 ip_addr) modifies t_EuaIPv4 := {
 		endUserAddress := {
 			endUserAddressIPv4 := {
-				lengthf := 2+lengthof(ip_addr)
+				lengthf := 2+4
 			}
 		}
 	}
@@ -667,6 +684,9 @@ module GGSN_Tests {
 					ctx.teid_remote := cpr.teidDataI.teidDataI;
 					ctx.teic_remote := cpr.teidControlPlane.teidControlPlane;
 					ctx.eua := cpr.endUserAddress;
+					if (match(ctx.eua, tr_EuaIPv4(?))) {
+						ctx.ip4_addr := ctx.eua.endUserAddress.endUserAddressIPv4.ipv4_address;
+					}
 					ctx.pco_neg := cpr.protConfigOptions;
 					setverdict(pass);
 				} else {
@@ -813,6 +833,28 @@ module GGSN_Tests {
 		payload := payload
 	}
 
+	/* template to construct IPv4_packet from input arguments, ready to use in f_IPv4_enc() */
+	template IPv4_packet ts_IP4(OCT4 srcaddr, OCT4 dstaddr, LIN1 proto, octetstring payload, LIN1 ttl := 255) := {
+		header := {
+			ver := 4,
+			hlen := 5,
+			tos := 0,
+			tlen := 0,
+			id := f_rnd_int(65535),
+			res := '0'B,
+			dfrag := '1'B,
+			mfrag := '0'B,
+			foffset := 0,
+			ttl := ttl,
+			proto := proto,
+			cksum := 0, /* overwritten in encoder */
+			srcaddr := srcaddr,
+			dstaddr := dstaddr
+		},
+		ext_headers := omit,
+		payload := payload
+	}
+
 	function f_ipv6_link_local(in OCT16 link_id) return OCT16 {
 		 return 'FE80000000000000'O & substr(link_id, 8, 8);
 	}
@@ -883,6 +925,103 @@ module GGSN_Tests {
 		T_default.stop;
 	}
 
+	template ASP_RecvFrom tr_UdpRecvFrom(template ConnectionId id, template HostName remName, template PortNumber remPort,
+					     template HostName locName, template PortNumber locPort, template octetstring payload) := {
+			connId := id,
+			remName := remName,
+			remPort := remPort,
+			locName := locName,
+			locPort := locPort,
+			proto := { udp := {} },
+			userData := ?,
+			msg := payload
+	}
+	function f_gen_UdpRT(template HostName remName, template PortNumber remPort,
+			     template octetstring payload) runs on GT_CT return template ASP_RecvFrom {
+		return tr_UdpRecvFrom(g_udp_connId, remName, remPort, m_pdn_sock_host_v4, m_pdn_sock_port_v4, payload);
+	}
+
+	template ASP_SendTo ts_UdpSendTo(ConnectionId id, HostName remName, PortNumber remPort, octetstring payload) := {
+		connId := id,
+		remName := remName,
+		remPort := remPort,
+		proto := { udp := {} },
+		msg := payload
+	}
+	function f_gen_UdpST(HostName remName, PortNumber remPort, octetstring payload) runs on GT_CT return ASP_SendTo {
+		return valueof(ts_UdpSendTo(g_udp_connId, remName, remPort, payload));
+	}
+
+	template UDP_packet ts_UDP(uint16_t srcport, uint16_t dstport, octetstring payload) := {
+		header := {
+			srcport := srcport,
+			dstport := dstport,
+			len := lengthof(payload),
+			cksum := 0
+		},
+		payload := payload
+	}
+
+	function f_gen_UDP4(OCT4 saddr, uint16_t sport, OCT4 daddr, uint16_t dport, octetstring payload) return octetstring {
+		var octetstring udp := f_UDP_enc(valueof(ts_UDP(sport, dport, payload)));
+		var UDP_pseudo_header phdr := {
+			ipv4 := {
+				srcaddr := saddr, dstaddr := daddr, zero := 0,
+				proto := 17, plen := 0
+			}
+		};
+		/* compute UDP checksum and patch into UDP binary */
+		var OCT2 udpcksum := f_UDP_checksum(f_UDP_pseudo_header_enc(phdr) & udp);
+		udp[6] := udpcksum[0];
+		udp[7] := udpcksum[1];
+		return f_IPv4_enc(valueof(ts_IP4(saddr, daddr, 17, udp)));
+	}
+
+	function f_gen_UDP6(OCT16 saddr, uint16_t sport, OCT16 daddr, uint16_t dport, octetstring payload) return octetstring {
+		var octetstring udp := f_UDP_enc(valueof(ts_UDP(sport, dport, payload)));
+		var UDP_pseudo_header phdr := {
+			ipv6 := {
+				srcaddr := saddr, dstaddr := daddr, plen := 0,
+				zero := 0, nextheader := 17
+			}
+		};
+		/* compute UDP checksum and patch into UDP binary */
+		var OCT2 udpcksum := f_UDP_checksum(f_UDP_pseudo_header_enc(phdr) & udp);
+		udp[6] := udpcksum[0];
+		udp[7] := udpcksum[1];
+		return f_IPv6_enc(valueof(ts_IP6(saddr, daddr, 17, udp)));
+	}
+
+	/* Send a packet via GTP (SGSN->GGSN) and confirm it arrives on UDP socket */
+	function f_transceive_udp_mo(PdpContext ctx, octetstring udp_payload) runs on GT_CT {
+		var uint16_t src_port := 8888;
+		/* build packet with UDP and IP header */
+		var octetstring ip_packet := f_gen_UDP4(ctx.ip4_addr, src_port, g_pdn_sock_ip, m_pdn_sock_port_v4, udp_payload);
+		/* send IP packet wrapped in GTP for given PDP context */
+		f_send_gtpu(ctx, ip_packet)
+		/* wait for it to arrive on UDP socket */
+		T_default.start;
+		alt {
+			[] UDP.receive(f_gen_UdpRT(f_inet_hntoa(ctx.ip4_addr), src_port, udp_payload)) { setverdict(pass); }
+			[] UDP.receive { setverdict(fail); }
+			[] T_default.timeout { setverdict(fail); }
+		}
+		T_default.stop;
+	}
+
+	function f_transceive_udp_mt(PdpContext ctx, octetstring udp_payload) runs on GT_CT {
+		var uint16_t dst_port := 7777;
+		var octetstring ip_packet := f_gen_UDP4(g_pdn_sock_ip, m_pdn_sock_port_v4, ctx.ip4_addr, dst_port, udp_payload);
+		/* Send IP packet in GGSN -> MS direction */
+		UDP.send(f_gen_UdpST(f_inet_hntoa(ctx.ip4_addr), dst_port, udp_payload));
+		T_default.start;
+		alt {
+			[] GTPU.receive(tr_GTPU_GPDU(g_peer_u, ctx.teid, ?)) { /* FIXME: check for ip_packet */}
+			[] T_default.timeout { setverdict(fail); }
+		}
+		T_default.stop;
+	}
+
 	/* Test IPv6 context activation for dynamic IPv6 EUA without request of IPv6 DNS */
 	testcase TC_pdp6_act_deact() runs on GT_CT {
 		f_init();
@@ -946,6 +1085,19 @@ module GGSN_Tests {
 		f_pdp_ctx_del(ctx, '1'B);
 	}
 
+	/* Test PDP context activation for dynamic IPv4 EUA with IPv4 DNS in IPCP + UDP user data */
+	testcase TC_pdp4_act_deact_ipcp_udp() runs on GT_CT {
+		f_init();
+		var PdpContext ctx := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn)));
+		ctx.pco_req := valueof(ts_PCO_IPv4_DNS_IPCP);
+		f_pdp_ctx_act(ctx);
+		for (var integer i := 0; i < 10; i := i + i) {
+			var octetstring payload := f_rnd_octstring(512);
+			f_transceive_udp_mo(ctx, payload);
+		}
+		f_pdp_ctx_del(ctx, '1'B);
+	}
+
 	testcase TC_echo_req_resp() runs on GT_CT {
 		f_init();
 		f_send_gtpc(ts_GTPC_PING(g_peer_c, g_c_seq_nr));
diff --git a/ggsn_tests/gen_links.sh b/ggsn_tests/gen_links.sh
index 573e26331..1297938b8 100755
--- a/ggsn_tests/gen_links.sh
+++ b/ggsn_tests/gen_links.sh
@@ -35,6 +35,10 @@ DIR=$BASEDIR/titan.ProtocolModules.IP/src
 FILES="IP_EncDec.cc  IP_Types.ttcn"
 gen_links $DIR $FILES
 
+DIR=$BASEDIR/titan.ProtocolModules.UDP/src
+FILES="UDP_EncDec.cc  UDP_Types.ttcn"
+gen_links $DIR $FILES
+
 DIR=../GTP_v13.5.0_CNL113843_LATEST/src
 FILES="GTPC_EncDec.cc  GTPC_Types.ttcn  GTPU_EncDec.cc  GTPU_Types.ttcn"
 gen_links $DIR $FILES
diff --git a/ggsn_tests/regen_makefile.sh b/ggsn_tests/regen_makefile.sh
index f9c1bcfd6..ad4f5a9d6 100755
--- a/ggsn_tests/regen_makefile.sh
+++ b/ggsn_tests/regen_makefile.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-FILES="*.ttcn IPL4asp_PT.cc  IPL4asp_discovery.cc  TCCConversion.cc  TCCInterface.cc GTPC_EncDec.cc GTPU_EncDec.cc GTP_CodecPort_CtrlFunctDef.cc ICMPv6_EncDec.cc IP_EncDec.cc Native_FunctionDefs.cc"
+FILES="*.ttcn IPL4asp_PT.cc  IPL4asp_discovery.cc  TCCConversion.cc  TCCInterface.cc GTPC_EncDec.cc GTPU_EncDec.cc GTP_CodecPort_CtrlFunctDef.cc ICMPv6_EncDec.cc IP_EncDec.cc Native_FunctionDefs.cc UDP_EncDec.cc"
 
 ttcn3_makefilegen -l -f GGSN_Tests.ttcn $FILES
 sed -i -e 's/# TTCN3_DIR = /TTCN3_DIR = \/usr/' Makefile
diff --git a/gprs_gb/BSSGP_Emulation.ttcn b/gprs_gb/BSSGP_Emulation.ttcn
index 5937a278f..ac7beb87f 100644
--- a/gprs_gb/BSSGP_Emulation.ttcn
+++ b/gprs_gb/BSSGP_Emulation.ttcn
@@ -65,7 +65,7 @@ module BSSGP_Emulation {
 	modulepar {
 		Nsvci mp_nsei := 96;
 		Nsvci mp_bvci := 196;
-		BssgpCellId mp_cellid := { ra_id := { lai := { mcc_mnc := '234F04'H, lac := 200}, rac := 0 }, cell_id := 20960 };
+		BssgpCellId mp_cellid := { ra_id := { lai := { mcc_mnc := '262F42'H, lac := 13135}, rac := 0 }, cell_id := 20960 };
 	};
 
 	function f_BnsUdReq(template BssgpPdu pdu, BssgpBvci bvci := mp_bvci) return NsUnitdataRequest {
diff --git a/gprs_gb/BSSGP_Types.ttcn b/gprs_gb/BSSGP_Types.ttcn
index c97b78b65..1be98303b 100644
--- a/gprs_gb/BSSGP_Types.ttcn
+++ b/gprs_gb/BSSGP_Types.ttcn
@@ -3,6 +3,8 @@ module BSSGP_Types {
 	import from General_Types all;
 	import from Osmocom_Types all;
 	import from GSM_Types all;
+	import from GSM_RR_Types all;
+	import from MobileL3_CommonIE_Types all;
 	import from BSSGP_Helper_Functions all;
 
 	type enumerated BssgpPduType {
@@ -233,10 +235,10 @@ module BSSGP_Types {
 		uint16_t		bvc_measurement, /* 11.3.7 */
 		BssgpCause		cause,		/* 11.3.8 */
 		BssgpCellId		cell_id,	/* 11.3.9 */
-		DrxParameter		drx_parameter,	/* 11.3.11 */
-		MobileIdentity		imsi,		/* 11.3.14 */
+		DrxParameter		drx_parameter,	/* 10.3.11 */
+		MobileIdentityV		imsi,		/* 11.3.14 */
 		LocationAreaIdentification lai,		/* 11.3.17 */
-		MobileIdentity		mobile_id,	/* 11.3.20 */
+		MobileIdentityV		mobile_id,	/* 11.3.20 */
 		BssgpPduLifetime	pdu_lifetime,	/* 11.3.25 */
 		BssgpPriority		priority,	/* 11.3.27 */
 		BssgpQosProfile		qos_profile,	/* 11.3.28 */
@@ -377,10 +379,13 @@ module BSSGP_Types {
 		len := 4,
 		u := {
 			imsi := {
-				imsi := {
-					mi_type := MI_TYPE_IMSI,
-					odd := true, /* IMSI has 15 digits */
-					digits := imsi
+				typeOfIdentity := '001'B,
+				oddEvenInd_identity := {
+					imsi := {
+						oddevenIndicator := '1'B, /* IMSI has 15 digits */
+						digits := imsi,
+						fillerDigit := omit
+					}
 				}
 			}
 		}
diff --git a/gprs_gb/LLC_Types.ttcn b/gprs_gb/LLC_Types.ttcn
index 61fc66449..8ca8f39d1 100644
--- a/gprs_gb/LLC_Types.ttcn
+++ b/gprs_gb/LLC_Types.ttcn
@@ -4,15 +4,31 @@ module LLC_Types {
 
 	/* TS 44.064 Chapter 6.2 */
 	type record LlcAddressField {
-		boolean pd,
+		BIT1 pd ('0'B),
 		boolean c_r,
 		BIT2 reserved,
 		LlcSapi sapi
 	} with {
-		variant (pd) "FIELDLENGTH(1)"
 		variant (c_r) "FIELDLENGTH(1)"
 	};
 
+	template LlcAddressField t_LLC_Addr(template boolean c_r, template LlcSapi sapi) := {
+		pd := '0'B,
+		c_r := c_r,
+		reserved := '00'B,
+		sapi := sapi
+	};
+
+	const boolean LLC_CR_DL_CMD := true;
+	const boolean LLC_CR_DL_RSP := false;
+	const boolean LLC_CR_UL_CMD := false;
+	const boolean LLC_CR_UL_RSP := true;
+
+	template LlcAddressField t_LLC_Addr_DlCmd(template LlcSapi sapi) := t_LLC_Addr(true, sapi);
+	template LlcAddressField t_LLC_Addr_DlRsp(template LlcSapi sapi) := t_LLC_Addr(false, sapi);
+	template LlcAddressField t_LLC_Addr_UlCmd(template LlcSapi sapi) := t_LLC_Addr(false, sapi);
+	template LlcAddressField t_LLC_Addr_UlRsp(template LlcSapi sapi) := t_LLC_Addr(true, sapi);
+
 	type enumerated LlcSapi {
 		LLC_SAPI_RESERVED_0	('0000'B),
 		LLC_SAPI_GMM		('0001'B),
@@ -68,6 +84,14 @@ module LLC_Types {
 		variant (pm) "FIELDLENGTH(1)"
 	};
 
+	template LlcCtrlFieldUI t_LlcCtrlUI(template uint8_t n_u) := {
+		presence := '110'B,
+		spare := '00'B,
+		n_u := n_u,
+		e := false,
+		pm := true
+	};
+
 	/* TS 44.064 Chapter 6.3 */
 	type record LlcCtrlFieldU {
 		BIT3 presence ('111'B),
@@ -120,8 +144,8 @@ module LLC_Types {
 	type record LlcPdu {
 		LlcAddressField	addr,
 		LlcCtrlUnion	ctrl,
-		octetstring	payload,
-		LlcFcs		fcs
+		octetstring	payload//,
+		//LlcFcs		fcs
 	} with { variant "" };
 
 	external function enc_LlcPdu(in LlcPdu pdu) return octetstring
@@ -129,4 +153,13 @@ module LLC_Types {
 	external function dec_LlcPdu(in octetstring stream) return LlcPdu
 		with { extension "prototype(convert) decode(RAW)" };
 
+
+	template LlcPdu t_LLC_UI(template boolean c_r, template uint8_t n_u, template octetstring payload,
+				 template LlcSapi sapi := LLC_SAPI_GMM) := {
+		addr := t_LLC_Addr(c_r, sapi),
+		ctrl := {
+			ui := t_LlcCtrlUI(n_u)
+		},
+		payload := payload
+	};
 } with { encode "RAW"; variant "FIELDORDER(msb)" }
diff --git a/gprs_gb/NS_Emulation.ttcn b/gprs_gb/NS_Emulation.ttcn
index 99607a02f..253c91e78 100644
--- a/gprs_gb/NS_Emulation.ttcn
+++ b/gprs_gb/NS_Emulation.ttcn
@@ -102,9 +102,9 @@ module NS_Emulation {
 	}
 
 	modulepar {
-		PortNumber mp_local_udp_port := 23001;
+		PortNumber mp_local_udp_port := 23000;
 		charstring mp_local_ip := "127.0.0.1";
-		PortNumber mp_remote_udp_port := 23000;
+		PortNumber mp_remote_udp_port := 21000;
 		charstring mp_remote_ip := "127.0.0.1";
 		Nsvci mp_nsvci := 0;
 		Nsvci mp_nsei := 2342;
diff --git a/gprs_gb/Test.cfg b/gprs_gb/Test.cfg
index 252704fb6..215562893 100644
--- a/gprs_gb/Test.cfg
+++ b/gprs_gb/Test.cfg
@@ -1,11 +1,14 @@
 [LOGGING]
+#*.FileMask := LOG_ALL
+ConsoleMask := ERROR | WARNING | TESTCASE | TIMEROP_START | DEBUG_ENCDEC
 
 [MODULE_PARAMETERS]
-mp_local_ip := "192.168.100.239"
-mp_local_udp_port := 23000
-mp_remote_ip := "192.168.100.196"
-mp_remote_udp_port := 21000
+#mp_local_ip := "192.168.100.239"
+#mp_local_udp_port := 23000
+#mp_remote_ip := "192.168.100.196"
+#mp_remote_udp_port := 21000
 mp_nsei := 96
+mp_bvci := 196
 
 [TESTPORT_PARAMETERS]
 #*.BSCVTY.CTRL_MODE := "client"
@@ -24,4 +27,10 @@ mp_nsei := 96
 [MAIN_CONTROLLER]
 
 [EXECUTE]
-Test.TC_nsem
+#Test.TC_selftest_llc
+#Test.TC_selftest_rlcmac
+#Test.TC_selftest_bssgp
+#Test.TC_nsem
+#Test.TC_paging
+Test.TC_rach
+#Test.TC_selftest_rr
diff --git a/gprs_gb/Test.ttcn b/gprs_gb/Test.ttcn
index 6e772dc08..759f23c4a 100644
--- a/gprs_gb/Test.ttcn
+++ b/gprs_gb/Test.ttcn
@@ -1,18 +1,47 @@
 module Test {
 
+	import from General_Types all;
+	import from Osmocom_Types all;
+	import from GSM_Types all;
+	import from GSM_RR_Types all;
 	import from BSSGP_Helper_Functions all;
 	import from BSSGP_Types all;
 	import from BSSGP_Emulation all;
 	import from NS_Types all;
 	import from NS_Emulation all;
+	import from LLC_Types all;
+	import from MobileL3_Types all;
+	import from RLCMAC_Types all;
+	import from RLCMAC_CSN1_Types all;
+	import from LAPDm_RAW_PT all;
+
+	type record MmContext {
+		octetstring	imsi optional,
+		BssgpTlli	tlli,
+		uint9_t		n_u
+	};
 
 	type component dummy_CT {
+		var lapdm_CT lapdm_component;
+		port LAPDm_PT L1;
+
 		port BSSGP_PT BSSGP;
 		var NS_CT ns_component;
 		var BSSGP_CT bssgp_component;
+
+		var MmContext g_mmctx := {
+			tlli := 0,
+			n_u := 0
+		};
+
+		var boolean g_initialized := false;
 	}
 
 	function f_init() runs on dummy_CT {
+		if (g_initialized == true) {
+			return;
+		}
+		g_initialized := true;
 		/* create a new NS component */
 		ns_component := NS_CT.create;
 		bssgp_component := BSSGP_CT.create;
@@ -24,6 +53,11 @@ module Test {
 		map(ns_component:NSCP, system:NS_CODEC_PORT);
 		ns_component.start(NSStart());
 		bssgp_component.start(BssgpStart());
+
+		lapdm_component := lapdm_CT.create;
+		connect(self:L1, lapdm_component:LAPDM_SP);
+		map(lapdm_component:L1CTL, system:L1CTL);
+		lapdm_component.start(LAPDmStart());
 	}
 
 	function f_bssgp_assert_prepr(in octetstring a, in octetstring b) {
@@ -91,6 +125,8 @@ module Test {
 		f_bssgp_dec_and_log(c_gmm_mt_att_acc);
 		f_bssgp_dec_and_log(c_gmm_mt_det_req);
 		f_bssgp_dec_and_log(c_gmm_mo_att_cpl);
+
+		log(t_BSSGP_PS_PAGING_IMSI(196, '262420123456789'H));
 	}
 
 	function f_ns_assert_prepr(in octetstring a, in octetstring b) {
@@ -132,7 +168,76 @@ module Test {
 		f_ns_dec_and_log(c_ns_reset_pcu);
 	}
 
-	testcase TC_nsem() runs on dummy_CT {
+	const BssgpQosProfile c_DefaultQos := { r := 80, spare := '00'B, c_r := false, t := false, a := false, precedence := 0 };
+	template BssgpTLV c_DefaultLifetimeTLV := t_BSSGP_IE_Lifetime(65535);
+
+	template BssgpTLV t_BSSGP_IE_LLC_PDU(LlcPdu llc) := t_BssgpIE(LLC_PDU, { other := f_LLC_append_fcs(enc_LlcPdu(llc)) });
+
+	template BssgpPdu t_BSSGP_DL_UD(BssgpTlli tlli, LlcPdu llc, BssgpTLVs opt_tlvs := {}) := {
+		pdu_type := DL_UNITDATA,
+		u := {
+			dl_unitdata := {
+				tlli := tlli,
+				qos_profile := c_DefaultQos,
+				pdu_lifetime := c_DefaultLifetimeTLV,
+				//tlvs := opt_tlvs & { t_BSSGP_IE_LLC_PDU(llc) }
+				tlvs := { t_BSSGP_IE_LLC_PDU(llc) }
+			}
+		}
+	};
+
+	template BssgpPdu t_BSSGP_UL_UD(template BssgpTlli tlli, template BssgpCellId cell_id, template octetstring payload) := {
+		pdu_type := UL_UNITDATA,
+		u := {
+			ul_unitdata := {
+				tlli := tlli,
+				qos_profile := ?,
+				cell_id := { iei := CELL_ID, len := 8, u := { cell_id := cell_id } },
+				tlvs := {
+						{ iei := ALIGNMENT_OCTETS, len := ?, u := { other := ? } },
+						{ iei := LLC_PDU, len := ?, u := { other := payload } }
+				}
+			}
+		}
+	}
+
+	template BssgpPdu t_BSSGP_PS_PAGING_IMSI(BssgpBvci bvci, hexstring imsi) := {
+		pdu_type := PAGING_PS,
+		u := {
+			other := {
+				tlvs := { t_BSSGP_IE_Imsi(imsi), t_BSSGP_IE_Bvci(bvci), t_BSSGP_IE_Qos(c_DefaultQos) }
+			}
+		}
+	};
+
+	template BssgpPdu t_BSSGP_PS_PAGING_PTMSI(BssgpBvci bvci, hexstring imsi, GsmTmsi ptmsi) := {
+		pdu_type := PAGING_PS,
+		u := {
+			other := {
+				tlvs := { t_BSSGP_IE_Imsi(imsi), t_BSSGP_IE_Bvci(bvci), t_BSSGP_IE_Qos(c_DefaultQos), t_BSSGP_IE_Tmsi(ptmsi) }
+			}
+		}
+	};
+
+	const octetstring gmm_auth_req := '081200102198c72477ea104895e8b959acc58b108182'O;
+
+	function tx_gmm(boolean c_r, in octetstring gmm_pdu, LlcSapi sapi := LLC_SAPI_GMM) runs on dummy_CT {
+		var LlcPdu llc;
+
+		log("GMM Tx: ", dec_PDU_L3_SGSN_MS(gmm_pdu));
+
+		log(c_r, g_mmctx.n_u, gmm_pdu, sapi);
+		log(t_LLC_UI(c_r, g_mmctx.n_u, gmm_pdu, sapi));
+		llc := valueof(t_LLC_UI(c_r, g_mmctx.n_u, gmm_pdu, sapi));
+		log(llc);
+		g_mmctx.n_u := g_mmctx.n_u + 1;
+
+		log(t_BSSGP_DL_UD(g_mmctx.tlli, llc));
+
+		BSSGP.send(t_BSSGP_DL_UD(g_mmctx.tlli, llc));
+	}
+
+	function f_bssgp_establish() runs on dummy_CT {
 		timer T:= 60.0;
 
 		f_init();
@@ -144,6 +249,17 @@ module Test {
 		}
 		T.stop
 		log("BSSGP successfully initialized");
+	}
+
+	testcase TC_paging() runs on dummy_CT {
+		var hexstring imsi := '262420123456789'H;
+		var BssgpBvci bvci := 196;
+		var GsmTmsi tmsi := hex2int('01234567'H);
+
+		f_bssgp_establish();
+
+		BSSGP.send(t_BSSGP_PS_PAGING_IMSI(bvci, imsi));
+		BSSGP.send(t_BSSGP_PS_PAGING_PTMSI(bvci, imsi, tmsi));
 
 		while (true) {
 			var BssgpPdu pdu;
@@ -157,9 +273,329 @@ module Test {
 		}
 	}
 
+	function f_establish_ul_tbf() runs on dummy_CT {
+		timer T := 5.0;
+		var BCCH_tune_req tune_req := { { false, 871 }, true };
+		L1.send(tune_req);
+		/* FIXME: wait for confirm */
+
+		var TBF_establish_req est_req := { ra := hex2int('7B'H) };
+		L1.send(est_req);
+		T.start;
+		/* FIXME: wait for confirm */
+		alt {
+			[] L1.receive(TBF_establish_res:?) {}
+			[] L1.receive { repeat; }
+			[] T.timeout { setverdict(fail); }
+		}
+		T.stop;
+	}
+
+	template RlcmacUlBlock t_RLCMAC_UL_DATA(template uint5_t tfi, template uint4_t cv, template uint7_t bsn,
+						template LlcBlocks blocks := {}, template boolean stall := false) := {
+		data := {
+			mac_hdr := {
+				payload_type := MAC_PT_RLC_DATA,
+				countdown := cv,
+				stall_ind := false,
+				retry := false,
+				spare := '0'B,
+				pfi_ind := false,
+				tfi := tfi,
+				tlli_ind := false,
+				bsn := bsn,
+				e := false
+			},
+			tlli := omit,
+			pfi := omit,
+			blocks := blocks
+		}
+	}
+	template RlcmacUlBlock t_RLCMAC_UL_DATA_TLLI(template uint5_t tfi, template uint4_t cv, template uint7_t bsn,
+						     template LlcBlocks blocks := {}, template boolean stall := false, template GprsTlli tlli) modifies t_RLCMAC_UL_DATA := {
+		data := {
+			tlli := tlli
+		}
+	}
+
+	template DlMacHeader t_RLCMAC_DlMacH(template MacPayloadType pt, template MacRrbp rrbp, template
+uint3_t usf) := {
+		payload_type := pt,
+		rrbp := rrbp,
+		rrbp_valid := fixme,
+		usf := usf
+	}
+
+	template RlcmacDlBlock tr_RLCMAC_ACK_NACK(template uint5_t ul_tfi, template GprsTlli tlli := ?) := {
+		ctrl := {
+			mac_hdr := {
+				payload_type := (MAC_PT_RLCMAC_NO_OPT, MAC_PT_RLCMAC_OPT),
+				rrbp:= ?,
+				rrbp_valid := true,
+				usf := ?
+			},
+			opt := *,
+			payload := {
+				msg_type := PACKET_UL_ACK_NACK,
+				u := {
+					ul_ack_nack := {
+						page_mode := ?,
+						msg_excape := ?,
+						uplink_tfi := ul_tfi,
+						is_egprs := '0'B,
+						gprs := {
+							ch_coding_cmd := ?,
+							ack_nack_desc := ?,
+							cont_res_tlli_present := ?,
+							cont_res_tlli := tlli,
+							pkt_ta_present := ?,
+							pkt_ta := *,
+							pwr_ctrl_present := ?,
+							pwr_ctrl := *
+						}
+					}
+				}
+			}
+		}
+	}
+
+	template UlMacCtrlHeader t_RLCMAC_UlMacCtrlH(template MacPayloadType pt, template boolean retry := false) := {
+		payload_type := pt,
+		spare := '00000'B,
+		retry := retry
+	}
+
+	template RlcmacUlBlock ts_RLCMAC_CTRL_ACK(GprsTlli tlli, CtrlAck ack := MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN) := {
+		ctrl := {
+			mac_hdr := t_RLCMAC_UlMacCtrlH(MAC_PT_RLCMAC_NO_OPT),
+			payload := {
+				msg_type := PACKET_CONTROL_ACK,
+				u := {
+					ctrl_ack := {
+						tlli := tlli,
+						ctrl_ack := ack
+					}
+				}
+			}
+		}
+	}
+
+	template LlcBlock t_RLCMAC_LLCBLOCK(octetstring data, BIT1 more := '0'B, boolean e := true) := {
+		hdr := {
+			length_ind := lengthof(data),
+			more := more,
+			e := e
+		},
+		payload := data
+	}
+
+	function f_random_tlli() return GprsTlli {
+		var GprsTlli tlli := float2int(rnd()* 4294967295.0);
+		return tlli;
+	}
+
+	function f_single_ul_block(GprsCodingScheme cs) runs on dummy_CT {
+		var GprsTlli tlli := f_random_tlli();
+		var octetstring payload := '01020304'O;
+
+		/* establish upling TBF */
+		f_establish_ul_tbf();
+
+		/* Generate LLC PDU consisting of single RLC block and send it via simulated MS */
+		var template RlcmacUlBlock blk := t_RLCMAC_UL_DATA_TLLI(0, 0, 0, {t_RLCMAC_LLCBLOCK(payload)}, false, tlli);
+		L1.send(RLCMAC_ph_data_req:{tbf_id := 0, cs := cs, block := blk});
+		/* ensure that this LLC-PDU arrives from the right TLLI at the (simulated) SGSN */
+		BSSGP.receive(t_BSSGP_UL_UD(tlli, ?, payload));
+
+		/* ensure the MS eceives an UL_ACK_NACK */
+		alt {
+			[] L1.receive(RLCMAC_ph_data_ind:{cs:=?, block:=tr_RLCMAC_ACK_NACK(0, tlli)}) { };
+			[] L1.receive { repeat; };
+		}
+		log("found matching ACK/NACK");
+		/* send CTRL ACK in uplink */
+		//L1.send(FIXME);
+	}
+
+	testcase TC_rach() runs on dummy_CT {
+		var hexstring imsi := '262420123456789'H;
+		var BssgpBvci bvci := 196;
+		var GsmTmsi tmsi := hex2int('01234567'H);
+
+		f_init();
+
+		f_bssgp_establish();
+
+		f_single_ul_block(CS1);
+
+		while (true) {
+			var BssgpPdu pdu;
+			var RLCMAC_ph_data_ind dl_msg;
+			alt {
+
+				[] BSSGP.receive(BssgpPdu:?) -> value pdu {
+					log("BSSGP Rx: ", pdu);
+				}
+				[] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; }
+				[] BSSGP.receive { repeat; }
+
+				[] L1.receive(RLCMAC_ph_data_ind:?) -> value dl_msg {
+					log("L1 DL: ", dl_msg);
+				}
+			}
+		}
+	}
+
+
+	testcase TC_nsem() runs on dummy_CT {
+
+		f_bssgp_establish();
+
+		while (true) {
+			var BssgpPdu pdu;
+			alt {
+				[] BSSGP.receive(BssgpPdu:?) -> value pdu {
+					log("BSSGP Rx: ", pdu);
+					//log("GMM Rx: ", dec_PDU_L3_MS_SGSN(pdu.payload));
+					g_mmctx.tlli := pdu.u.ul_unitdata.tlli;
+					tx_gmm(LLC_CR_DL_CMD, gmm_auth_req);
+				}
+				[] BSSGP.receive(t_BssgpStsInd(?, ?, BVC_S_UNBLOCKED)) { repeat; }
+				[] BSSGP.receive { repeat; }
+			}
+		}
+	}
+
+
+	function f_llc_dec_and_log(in octetstring inp) {
+		log("LLC Input: ", inp);
+		var LlcPdu dec := dec_LlcPdu(inp);
+		log("LLC Decoded: ", dec);
+	}
+
+	function f_llc_assert(in octetstring a, in octetstring b) {
+		log("LLC Input: ", a);
+		log("LLC Expected: ", b);
+
+		if (a != b) {
+			setverdict(fail);
+		} else {
+			setverdict(pass);
+		}
+	}
+
+
+	testcase TC_selftest_llc() runs on dummy_CT {
+		const octetstring c_gmm_att_pcu := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c00020170580460b'O;
+		const octetstring c_gmm_att_pcu_nofcs := '01c001080103e5e000210a0005f4fb146ddd32f44000c8001d1b53432b37159ef9090070000dd9c6321200e00019b32c642401c000201705'O;
+		const octetstring c_ctrl_ui := 'c001'O;
+
+		log(dec_LlcCtrlUnion(c_ctrl_ui));
+		f_llc_assert(enc_LlcCtrlUnion({ ui := { presence := '110'B, spare := '00'B, n_u := 0, e := false, pm := true } }), c_ctrl_ui);
+
+		f_llc_dec_and_log(c_gmm_att_pcu);
+
+		f_llc_assert(f_LLC_append_fcs(c_gmm_att_pcu_nofcs), c_gmm_att_pcu);
+
+		log(valueof(t_LLC_UI(LLC_CR_DL_CMD, g_mmctx.n_u, gmm_auth_req, LLC_SAPI_GMM)));
+		log(t_LLC_UI(LLC_CR_DL_CMD, g_mmctx.n_u, gmm_auth_req, LLC_SAPI_GMM));
+	}
+
+	testcase TC_selftest_rlcmac() runs on dummy_CT {
+		var RlcmacDlCtrlBlock dcb;
+		var RlcmacUlCtrlBlock ucb;
+		const octetstring c_dl_ul_ack_nack := '40240080400000000000000077628dbba14b2b2b2b2b2b'O;
+		const octetstring c_dl_data := '0f00007341c001081200102198c72477ea104895e8b959acc58b108182f4d0454300'O;
+		const octetstring c_dl_data2 := '070002165dc0012b2b2b43c0012b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
+		const octetstring c_ul_ctrl_ack := '4006ec51b7772b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b'O;
+		const octetstring c_ul_dl_ack_nack := '4008004000000000000000701000edc0000b2b2b2b2b2b'O;
+		const octetstring c_dl_ul_assign := '482857628dbbaf0126e68800082b2b2b2b2b2b2b2b2b2b'O;
+
+		log(c_dl_ul_ack_nack);
+		dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_ack_nack);
+		log(dcb);
+		//log(dec_RlcmacDlCtrlMsg(dcb.payload));
+
+		f_rlcmac_dld_decenc(c_dl_data);
+
+		f_rlcmac_dld_decenc(c_dl_data2);
+
+		log(c_ul_ctrl_ack);
+		ucb := dec_RlcmacUlCtrlBlock(c_ul_ctrl_ack);
+		log(ucb);
+		//log(dec_RlcmacUlCtrlMsg(ucb.payload));
+
+		log(c_ul_dl_ack_nack);
+		ucb := dec_RlcmacUlCtrlBlock(c_ul_dl_ack_nack);
+		log(ucb);
+		//log(dec_RlcmacUlCtrlMsg(ucb.payload));
+
+		log(c_dl_ul_assign);
+		dcb := dec_RlcmacDlCtrlBlock(c_dl_ul_assign);
+		log(dcb);
+		//log(dec_RlcmacDlCtrlMsg(dcb.payload));
+
+		const octetstring c_uld_tlli_noext := '080101a61cab5201c001080103e5e000310a0005f4e61cab5232f44000c8001d1b00'O;
+		f_rlcmac_uld_decenc(c_uld_tlli_noext);
+
+		const octetstring c_uld_tlli_ext7pad := '0001041da61cab5200201705a96e102b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b00'O;
+		log("ULD_decenc");
+		f_rlcmac_uld_decenc(c_uld_tlli_ext7pad);
+		log("UL_decenc");
+		f_rlcmac_ul_decenc(c_uld_tlli_ext7pad);
+
+		f_rlcmac_ul_decenc(c_ul_dl_ack_nack);
+	}
+
+	function f_rlcmac_ul_decenc(in octetstring buf) {
+		log("==================================");
+		log("In: ", buf);
+		var RlcmacUlBlock udb := dec_RlcmacUlBlock(buf);
+		log("Dec: ", udb);
+		var octetstring enc := enc_RlcmacUlBlock(udb);
+		log("Enc: ", enc);
+		if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); }
+	}
+
+	function f_rlcmac_uld_decenc(in octetstring buf) {
+		log("==================================");
+		log("In: ", buf);
+		var RlcmacUlDataBlock udb := dec_RlcmacUlDataBlock(buf);
+		log("Dec: ", udb);
+		var octetstring enc := enc_RlcmacUlDataBlock(udb);
+		log("Enc: ", enc);
+		if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); }
+	}
+
+	function f_rlcmac_dld_decenc(in octetstring buf) {
+		log("==================================");
+		log("In: ", buf);
+		var RlcmacDlDataBlock udb := dec_RlcmacDlDataBlock(buf);
+		log("Dec: ", udb);
+		var octetstring enc := enc_RlcmacDlDataBlock(udb);
+		log("Enc: ", enc);
+		if (enc != buf) { setverdict(fail, "Re-encoded data doesn't equal input data"); }
+	}
+
+
+	testcase TC_selftest_rr() runs on dummy_CT {
+		//const octetstring c_paging_none := '06210001F02B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B2B'O
+		const octetstring c_paging_none := '1506210001F0'O;
+		const octetstring c_ia_tbf := '2d063f100fe3677bd8440000c800100b2b2b2b2b2b2b2b'O
+		log(c_paging_none);
+		log(dec_GsmRrMessage(c_paging_none));
+
+		log(c_ia_tbf);
+		log(dec_GsmRrMessage(c_ia_tbf));
+	}
+
 	control {
 		execute(TC_selftest_bssgp());
 		execute(TC_selftest_ns());
+		execute(TC_selftest_llc());
+		execute(TC_selftest_rr());
+		execute(TC_selftest_rlcmac());
 		execute(TC_nsem());
+		execute(TC_paging());
 	}
 };
diff --git a/gprs_gb/gen_links.sh b/gprs_gb/gen_links.sh
index e93969050..bdfb24101 100755
--- a/gprs_gb/gen_links.sh
+++ b/gprs_gb/gen_links.sh
@@ -27,8 +27,14 @@ DIR=$BASEDIR/titan.TestPorts.IPL4asp/src
 FILES="IPL4asp_Functions.ttcn  IPL4asp_PT.cc  IPL4asp_PT.hh IPL4asp_PortType.ttcn  IPL4asp_Types.ttcn  IPL4asp_discovery.cc IPL4asp_protocol_L234.hh"
 gen_links $DIR $FILES
 
+DIR=../MobileL3_v13.4.0_CNL113832_LATEST/src
+FILES="MobileL3_CC_Types.ttcn MobileL3_CommonIE_Types.ttcn MobileL3_GMM_SM_Types.ttcn MobileL3_MM_Types.ttcn MobileL3_RRM_Types.ttcn MobileL3_SMS_Types.ttcn MobileL3_SS_Types.ttcn MobileL3_Types.ttcn SS_DataTypes.asn SS_EncDec.cc SS_Errors.asn SS_Operations.asn SS_PDU_Defs.asn SS_Protocol.asn SS_Types.ttcn" 
+gen_links $DIR $FILES
 
+DIR=$BASEDIR/titan.TestPorts.UNIX_DOMAIN_SOCKETasp/src
+FILES="UD_PT.cc  UD_PT.hh  UD_PortType.ttcn  UD_Types.ttcn"
+gen_links $DIR $FILES
 
 DIR=../library
-FILES="General_Types.ttcn GSM_Types.ttcn GSM_RR_Types.ttcn Osmocom_Types.ttcn RLCMAC_Types.ttcn RLCMAC_EncDec.cc L1CTL_Types.ttcn L1CTL_PortType.ttcn"
+FILES="General_Types.ttcn GSM_Types.ttcn GSM_RR_Types.ttcn Osmocom_Types.ttcn RLCMAC_Types.ttcn RLCMAC_EncDec.cc L1CTL_Types.ttcn L1CTL_PortType.ttcn LAPDm_RAW_PT.ttcn LAPDm_Types.ttcn"
 gen_links $DIR $FILES
diff --git a/gprs_gb/regen_makefile.sh b/gprs_gb/regen_makefile.sh
index a985592d3..812ff489e 100755
--- a/gprs_gb/regen_makefile.sh
+++ b/gprs_gb/regen_makefile.sh
@@ -1,9 +1,9 @@
 #!/bin/sh
 
-FILES="*.ttcn BSSGP_Helper.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc NS_CodecPort_CtrlFunctDef.cc"
+FILES="*.ttcn BSSGP_Helper.cc IPL4asp_PT.cc IPL4asp_discovery.cc TCCConversion.cc TCCInterface.cc NS_CodecPort_CtrlFunctDef.cc UD_PT.cc RLCMAC_EncDec.cc"
 
 ttcn3_makefilegen -f Test.ttcn $FILES
 sed -i -e 's/# TTCN3_DIR = /TTCN3_DIR = \/usr/' Makefile
-sed -i -e 's/LDFLAGS = /LDFLAGS = -L \/usr\/lib\/titan `pkg-config --libs libnetfilter_conntrack`/' Makefile
+sed -i -e 's/LDFLAGS = /LDFLAGS = -L \/usr\/lib\/titan/' Makefile
 #sed -i -e 's/TTCN3_LIB = ttcn3-parallel/TTCN3_LIB = ttcn3/' Makefile
 sed -i -e 's/CPPFLAGS = -D$(PLATFORM) -I$(TTCN3_DIR)\/include/CPPFLAGS = -D$(PLATFORM) -I$(TTCN3_DIR)\/include -I\/usr\/include\/titan/' Makefile
diff --git a/library/RLCMAC_EncDec.cc b/library/RLCMAC_EncDec.cc
index 86fe7f325..4cdeae7e6 100644
--- a/library/RLCMAC_EncDec.cc
+++ b/library/RLCMAC_EncDec.cc
@@ -16,7 +16,8 @@ OCTETSTRING enc__RlcmacDlDataBlock(const RlcmacDlDataBlock& si)
 	int i;
 
 	/* Fix 'e' bit of initial header based on following blocks */
-	if (!in.blocks().is_bound() || (in.blocks().size_of() == 1 && !in.blocks()[0].hdr().is_bound()))
+	if (!in.blocks().is_bound() ||
+	    (in.blocks().size_of() == 1 && !in.blocks()[0].hdr().is_bound()))
 		in.mac__hdr().hdr__ext().e() = true;
 	else
 		in.mac__hdr().hdr__ext().e() = false;
@@ -107,7 +108,8 @@ OCTETSTRING enc__RlcmacUlDataBlock(const RlcmacUlDataBlock& si)
 	int i;
 
 	/* Fix 'e' bit of initial header based on following blocks */
-	if (!in.blocks().is_bound() || (in.blocks().size_of() == 1 && !in.blocks()[0].hdr().is_bound()))
+	if (!in.blocks().is_bound() ||
+	    (in.blocks().size_of() == 1 && !in.blocks()[0].hdr().is_bound()))
 		in.mac__hdr().e() = true;
 	else
 		in.mac__hdr().e() = false;
diff --git a/sysinfo/Test.ttcn b/sysinfo/Test.ttcn
index 77e46fc3c..e7cdcfe58 100644
--- a/sysinfo/Test.ttcn
+++ b/sysinfo/Test.ttcn
@@ -691,8 +691,8 @@ module Test {
 
 	testcase TC_telnet() runs on dummy_CT {
 		f_init();
-		f_vty_enter_config(BSCVTY);
 		f_vty_transceive(BSCVTY, "show network")
+		f_vty_enter_config(BSCVTY);
 		f_vty_transceive(BSCVTY, "network")
 		f_vty_transceive(BSCVTY, "bts 0")
 		f_vty_transceive(BSCVTY, "end")