diff --git a/tests/msc_vlr/msc_vlr_test_umts_authen.err b/tests/msc_vlr/msc_vlr_test_umts_authen.err
index 4f08899..77a056f 100644
--- a/tests/msc_vlr/msc_vlr_test_umts_authen.err
+++ b/tests/msc_vlr/msc_vlr_test_umts_authen.err
@@ -1768,6 +1768,194 @@
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
 talloc_total_blocks(tall_bsc_ctx) == 7
 
+===== test_umts_authen_only_sres_geran
+- Location Update request causes a GSUP Send Auth Info request to HLR
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
+  new conn
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
+DREF unknown: MSC conn use + fsm == 2 (0x5)
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: Allocated
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: state_chg to SUBSCR_CONN_S_NEW
+DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000010650 type=NORMAL
+DMM LU/new-LAC: 0/23
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: Allocated
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: is child of Subscr_Conn(901700000010650)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: rev=R99 net=GERAN Auth (no Ciph)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
+DREF VLR subscr unknown usage increases to: 1
+DVLR set IMSI on subscriber; IMSI=901700000010650 id=901700000010650
+DVLR New subscr, IMSI: 901700000010650
+DREF VLR subscr IMSI:901700000010650 usage increases to: 2
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 1
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: Allocated
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: is child of vlr_lu_fsm(901700000010650)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: Received Event VLR_AUTH_E_START
+DVLR GSUP tx: 08010809710000000156f0
+GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000000156f0
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
+DMM IMSI:901700000010650: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DREF IMSI:901700000010650: MSC conn use - compl_l3 == 1 (0x4)
+  lu_result_sent == 0
+- from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
+<-- GSUP rx OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT: 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
+DVLR GSUP rx 511: 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
+DREF VLR subscr IMSI:901700000010650 usage increases to: 2
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH_WAIT_AI}: Received Event VLR_AUTH_E_HLR_SAI_ACK
+DVLR SUBSCR(IMSI:901700000010650) Received 5 auth tuples
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH_WAIT_AI}: state_chg to VLR_SUB_AS_WAIT_RESP
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: got auth tuple: use_count=1 key_seq=0
+- sending UMTS Auth Request for IMSI:901700000010650: tuple use_count=1 key_seq=0 auth_types=0x3 and...
+- ...rand=39fa2f4e3d523d8619a73b4f65c3e14d
+- ...autn=8704f5ba55f30000d2ee44b22c8ea919
+- ...expecting res=e229c19e791f2e41
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 1
+<-- GSUP rx OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT: vlr_gsupc_read_cb() returns 0
+  auth_request_sent == 1
+  lu_result_sent == 0
+- MS sends Authen Response of wrong RES size, VLR thwarts: GERAN reports an SRES mismatch
+  MSC <--RAN_GERAN_A-- MS: GSM48_MT_MM_AUTH_RESP
+DREF IMSI:901700000010650: MSC conn use + dtap == 2 (0x6)
+DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
+DMM IMSI:901700000010650: MM GSM AUTHENTICATION RESPONSE (sres = e229c19e)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
+DVLR SUBSCR(IMSI:901700000010650) received res: e2 29 c1 9e 
+DVLR SUBSCR(IMSI:901700000010650) GSM AUTH failure: mismatching sres (expected sres=9b 36 ef df )
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: Authentication terminating with result VLR_AUTH_RES_AUTH_FAILED
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: state_chg to VLR_SUB_AS_AUTH_FAILED
+DVLR GSUP tx: 0b010809710000000156f0
+GSUP --> HLR: OSMO_GSUP_MSGT_AUTH_FAIL_REPORT: 0b010809710000000156f0
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Removing from parent vlr_lu_fsm(901700000010650)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Freeing instance
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Deallocated
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_AUTH}: Received Event VLR_ULA_E_AUTH_RES
+- sending LU Reject for IMSI:901700000010650, cause 3
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_CN_CLOSE
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Close event, cause 1
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_RELEASED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000010650, cause=2): no conn fsm, releasing directly without release event.
+- BSSAP Clear --RAN_GERAN_A--> MS
+DREF IMSI:901700000010650: MSC conn use - fsm == 1 (0x2)
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Deallocated
+DREF IMSI:901700000010650: MSC conn use - dtap == 0 (0x0)
+DRLL subscr IMSI:901700000010650: Freeing subscriber connection
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 0
+DREF freeing VLR subscr IMSI:901700000010650
+  lu_result_sent == 2
+  bssap_clear_sent == 1
+  llist_count(&net->subscr_conns) == 0
+===== test_umts_authen_only_sres_geran: SUCCESS
+
+full talloc report on 'msgb' (total      0 bytes in   1 blocks)
+talloc_total_blocks(tall_bsc_ctx) == 7
+
+===== test_umts_authen_only_sres_utran
+- Location Update request causes a GSUP Send Auth Info request to HLR
+  MSC <--RAN_UTRAN_IU-- MS: GSM48_MT_MM_LOC_UPD_REQUEST
+  new conn
+DREF unknown: MSC conn use + compl_l3 == 1 (0x1)
+DRLL Dispatching 04.08 message GSM48_MT_MM_LOC_UPD_REQUEST (0x5:0x8)
+DREF unknown: MSC conn use + fsm == 2 (0x5)
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: Allocated
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: Received Event SUBSCR_CONN_E_START
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_INIT}: state_chg to SUBSCR_CONN_S_NEW
+DMM LOCATION UPDATING REQUEST: MI(IMSI)=901700000010650 type=NORMAL
+DMM LU/new-LAC: 0/23
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: Allocated
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: is child of Subscr_Conn(901700000010650)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: rev=R99 net=UTRAN Auth+Ciph
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: Received Event VLR_ULA_E_UPDATE_LA
+DREF VLR subscr unknown usage increases to: 1
+DVLR set IMSI on subscriber; IMSI=901700000010650 id=901700000010650
+DVLR New subscr, IMSI: 901700000010650
+DREF VLR subscr IMSI:901700000010650 usage increases to: 2
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 1
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: Allocated
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: is child of vlr_lu_fsm(901700000010650)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: Received Event VLR_AUTH_E_START
+DVLR GSUP tx: 08010809710000000156f0
+GSUP --> HLR: OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST: 08010809710000000156f0
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH}: state_chg to VLR_SUB_AS_NEEDS_AUTH_WAIT_AI
+DMM IMSI:901700000010650: bump: conn still being established (SUBSCR_CONN_S_NEW)
+DREF IMSI:901700000010650: MSC conn use - compl_l3 == 1 (0x4)
+  lu_result_sent == 0
+- from HLR, rx _SEND_AUTH_INFO_RESULT; VLR sends Auth Req to MS
+<-- GSUP rx OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT: 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
+DVLR GSUP rx 511: 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
+DREF VLR subscr IMSI:901700000010650 usage increases to: 2
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH_WAIT_AI}: Received Event VLR_AUTH_E_HLR_SAI_ACK
+DVLR SUBSCR(IMSI:901700000010650) Received 5 auth tuples
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_NEEDS_AUTH_WAIT_AI}: state_chg to VLR_SUB_AS_WAIT_RESP
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: got auth tuple: use_count=1 key_seq=0
+- sending UMTS Auth Request for IMSI:901700000010650: tuple use_count=1 key_seq=0 auth_types=0x3 and...
+- ...rand=39fa2f4e3d523d8619a73b4f65c3e14d
+- ...autn=8704f5ba55f30000d2ee44b22c8ea919
+- ...expecting res=e229c19e791f2e41
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 1
+<-- GSUP rx OSMO_GSUP_MSGT_SEND_AUTH_INFO_RESULT: vlr_gsupc_read_cb() returns 0
+  auth_request_sent == 1
+  lu_result_sent == 0
+- MS sends Authen Response of wrong RES size, VLR thwarts: UTRAN disallows GSM AKA altogether
+  MSC <--RAN_UTRAN_IU-- MS: GSM48_MT_MM_AUTH_RESP
+DREF IMSI:901700000010650: MSC conn use + dtap == 2 (0x6)
+DRLL Dispatching 04.08 message GSM48_MT_MM_AUTH_RESP (0x5:0x14)
+DMM IMSI:901700000010650: MM GSM AUTHENTICATION RESPONSE (sres = e229c19e)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: Received Event VLR_AUTH_E_MS_AUTH_RESP
+DVLR SUBSCR(IMSI:901700000010650) received res: e2 29 c1 9e 
+DVLR SUBSCR(IMSI:901700000010650) AUTH via UTRAN but res_len(4) != vec->res_len(8)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: Authentication terminating with result VLR_AUTH_RES_AUTH_FAILED
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_WAIT_RESP}: state_chg to VLR_SUB_AS_AUTH_FAILED
+DVLR GSUP tx: 0b010809710000000156f0
+GSUP --> HLR: OSMO_GSUP_MSGT_AUTH_FAIL_REPORT: 0b010809710000000156f0
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Removing from parent vlr_lu_fsm(901700000010650)
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Freeing instance
+DVLR VLR_Authenticate(901700000010650){VLR_SUB_AS_AUTH_FAILED}: Deallocated
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_AUTH}: Received Event VLR_ULA_E_AUTH_RES
+- sending LU Reject for IMSI:901700000010650, cause 3
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_WAIT_AUTH}: state_chg to VLR_ULA_S_DONE
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Received Event SUBSCR_CONN_E_CN_CLOSE
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: SUBSCR_CONN_FROM_LU
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: Close event, cause 1
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_NEW}: state_chg to SUBSCR_CONN_S_RELEASED
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Terminating (cause = OSMO_FSM_TERM_REGULAR)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Terminating (cause = OSMO_FSM_TERM_PARENT)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Removing from parent Subscr_Conn(901700000010650)
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: fsm_lu_cleanup called with cause OSMO_FSM_TERM_PARENT
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Freeing instance
+DVLR vlr_lu_fsm(901700000010650){VLR_ULA_S_DONE}: Deallocated
+DMM msc_subscr_conn_close(vsub=IMSI:901700000010650, cause=2): no conn fsm, releasing directly without release event.
+- Iu Release --RAN_UTRAN_IU--> MS
+DREF IMSI:901700000010650: MSC conn use - fsm == 1 (0x2)
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Freeing instance
+DMM Subscr_Conn(901700000010650){SUBSCR_CONN_S_RELEASED}: Deallocated
+DREF IMSI:901700000010650: MSC conn use - dtap == 0 (0x0)
+DRLL subscr IMSI:901700000010650: Freeing subscriber connection
+DREF VLR subscr IMSI:901700000010650 usage decreases to: 0
+DREF freeing VLR subscr IMSI:901700000010650
+  lu_result_sent == 2
+  iu_release_sent == 1
+  llist_count(&net->subscr_conns) == 0
+===== test_umts_authen_only_sres_utran: SUCCESS
+
+full talloc report on 'msgb' (total      0 bytes in   1 blocks)
+talloc_total_blocks(tall_bsc_ctx) == 7
+
 full talloc report on 'msgb' (total      0 bytes in   1 blocks)
 talloc_total_blocks(tall_bsc_ctx) == 7