Reject message

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Sukchan Lee acetcom at gmail.com
Sat Mar 28 23:57:47 UTC 2020


Even though UE try to connect without APN, if you set the first APN(default
APN) to the mongoDB, open5gs won't reject the UE request. If the problem is
still not resolved, I need your pcap file to fix the issue.

On Fri, Mar 27, 2020 at 12:10 PM <david at ispsupplies.com> wrote:

> I figured out what was going on, so perhaps there is a solution already in
> place.  By default the Baicells UE do not request a specific APN.  That
> causes the EPC to reject the request.
>
>
>
> [image: ISP Supplies] <http://www.ispsupplies.com/>
>
> [image: cid:image002.jpg at 01D5B005.DEE3BE10]
>
> *David Peterson*
> Senior Engineer
> 855-947-7776 ext. 9214
> c 419-706-7355
> d 979-314-1305
> https://www.ispsupplies.com *[image: Facebook]*
> <https://facebook.com/ispsupplies> *[image: Twitter]*
> <https://twitter.com/ispsupplies> *[image: LinkedIn]*
> <https://www.linkedin.com/company/isp-supplies/>
>
>
>
>
>
> *From:* Sukchan Lee <acetcom at gmail.com>
> *Sent:* Friday, March 27, 2020 11:57 AM
> *To:* david at ispsupplies.com
> *Cc:* nextepc at lists.osmocom.org
> *Subject:* Re: Reject message
>
>
>
> Hi david,
>
>
>
> If pcap is provided, it is more easier to analyze your problem.
>
>
>
> BTW, from your log, I've found PDN connectivity reject with ESM_CAUSE:27.
>
> It means that UE APN is unknown in HSS. So, you need to match APN name
> between UE and HSS.
>
>
>
> Thanks and regards,
>
>    Sukchan
>
>
>
> On Tue, Mar 17, 2020 at 6:47 PM <david at ispsupplies.com> wrote:
>
> Does anyone know why I am getting this reject reason for network entry on
> a UE?
>
>
>
> 03/17 16:56:55.026: [mme] DEBUG: [EMM] Authentication request
> (../src/mme/nas-path.c:180)
>
> 03/17 16:56:55.026: [mme] DEBUG:     IMSI[311980000033212]
> (../src/mme/nas-path.c:181)
>
> 03/17 16:56:55.026: [mme] DEBUG: [MME] DownlinkNASTransport
> (../src/mme/s1ap-build.c:186)
>
> 03/17 16:56:55.026: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-build.c:231)
>
> 03/17 16:56:55.026: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-path.c:79)
>
> 03/17 16:56:55.189: [mme] DEBUG: mme_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.189: [mme] DEBUG: s1ap_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/s1ap-sm.c:60)
>
> 03/17 16:56:55.189: [mme] DEBUG: [MME] Uplink NAS transport
> (../src/mme/s1ap-handler.c:330)
>
> 03/17 16:56:55.189: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-handler.c:347)
>
> 03/17 16:56:55.189: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-handler.c:354)
>
> 03/17 16:56:55.189: [mme] DEBUG: mme_state_operational():
> MME_EVT_EMM_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.189: [emm] DEBUG: emm_state_authentication():
> MME_EVT_EMM_MESSAGE
>
> (../src/mme/emm-sm.c:488)
>
> 03/17 16:56:55.189: [emm] DEBUG: [EMM] Authentication response
> (../src/mme/emm-sm.c:512)
>
> 03/17 16:56:55.189: [emm] DEBUG:     IMSI[311980000033212]
> (../src/mme/emm-sm.c:513)
>
> 03/17 16:56:55.189: [emm] DEBUG: emm_state_authentication(): EXIT
>
> (../src/mme/emm-sm.c:488)
>
> 03/17 16:56:55.189: [emm] DEBUG: emm_state_security_mode(): ENTRY
>
> (../src/mme/emm-sm.c:649)
>
> 03/17 16:56:55.189: [mme] DEBUG: [EMM] Security mode command
> (../src/mme/nas-path.c:207)
>
> 03/17 16:56:55.189: [mme] DEBUG:     IMSI[311980000033212]
> (../src/mme/nas-path.c:208)
>
> 03/17 16:56:55.190: [emm] DEBUG:     Replayed UE SEC[LEN:2 EEA:0xe0
> EIA:0xe0 UEA:0x0 UIA:0x0 GEA:0x0] (../src/mme/emm-build.c:287)
>
> 03/17 16:56:55.190: [emm] DEBUG:     Selected[Integrity:0x1 Encrypt:0x0]
> (../src/mme/emm-build.c:289)
>
> 03/17 16:56:55.190: [mme] DEBUG: [MME] DownlinkNASTransport
> (../src/mme/s1ap-build.c:186)
>
> 03/17 16:56:55.190: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-build.c:231)
>
> 03/17 16:56:55.190: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-path.c:79)
>
> 03/17 16:56:55.229: [mme] DEBUG: mme_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.230: [mme] DEBUG: s1ap_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/s1ap-sm.c:60)
>
> 03/17 16:56:55.230: [mme] DEBUG: [MME] Uplink NAS transport
> (../src/mme/s1ap-handler.c:330)
>
> 03/17 16:56:55.230: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-handler.c:347)
>
> 03/17 16:56:55.230: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-handler.c:354)
>
> 03/17 16:56:55.230: [mme] DEBUG: mme_state_operational():
> MME_EVT_EMM_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.230: [emm] DEBUG: emm_state_security_mode():
> MME_EVT_EMM_MESSAGE
>
> (../src/mme/emm-sm.c:649)
>
> 03/17 16:56:55.230: [emm] DEBUG: [EMM] Security mode complete
> (../src/mme/emm-sm.c:676)
>
> 03/17 16:56:55.230: [emm] DEBUG:     IMSI[311980000033212]
> (../src/mme/emm-sm.c:677)
>
> 03/17 16:56:55.230: [mme] DEBUG: [MME] Update-Location-Request
> (../src/mme/mme-fd-path.c:444)
>
> 03/17 16:56:55.231: [emm] DEBUG: emm_state_security_mode(): EXIT
>
> (../src/mme/emm-sm.c:649)
>
> 03/17 16:56:55.231: [emm] DEBUG: emm_state_initial_context_setup(): ENTRY
>
> (../src/mme/emm-sm.c:817)
>
> 03/17 16:56:55.234: [mme] DEBUG: [MME] Update-Location-Answer
> (../src/mme/mme-fd-path.c:610)
>
> 03/17 16:56:55.234: [mme] DEBUG:     Result Code: 2001
> (../src/mme/mme-fd-path.c:651)
>
> 03/17 16:56:55.234: [mme] DEBUG:     From 'hss.localdomain'
> (../src/mme/mme-fd-path.c:680)
>
> 03/17 16:56:55.234: [mme] DEBUG:          ('localdomain')
> (../src/mme/mme-fd-path.c:693)
>
> 03/17 16:56:55.234: [mme] DEBUG: mme_state_operational():
> MME_EVT_S6A_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.234: [mme] DEBUG: mme_state_operational():
> MME_EVT_ESM_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.234: [mme] DEBUG: mme_bearer_find_or_add_by_message()
> [PTI:8, EBI:0] (../src/mme/mme-context.c:2847)
>
> 03/17 16:56:55.234: [esm] DEBUG: esm_state_initial(): ENTRY
>
> (../src/mme/esm-sm.c:38)
>
> 03/17 16:56:55.234: [esm] DEBUG: esm_state_inactive(): ENTRY
>
> (../src/mme/esm-sm.c:61)
>
> 03/17 16:56:55.234: [mme] INFO: Added a session. Number of sessions is now
> 1 (../src/mme/mme-context.c:79)
>
> 03/17 16:56:55.234: [esm] DEBUG: esm_state_inactive(): MME_EVT_ESM_MESSAGE
>
> (../src/mme/esm-sm.c:61)
>
> 03/17 16:56:55.234: [esm] DEBUG: [ESM] PDN Connectivity request
> (../src/mme/esm-sm.c:82)
>
> 03/17 16:56:55.234: [esm] DEBUG:     IMSI[311980000033212] PTI[8] EBI[5]
> (../src/mme/esm-sm.c:84)
>
> 03/17 16:56:55.234: [esm] DEBUG:     EIT(ESM information transfer)[1]
> (../src/mme/esm-handler.c:59)
>
> 03/17 16:56:55.234: [esm] DEBUG: [ESM] ESM information request
> (../src/mme/esm-build.c:75)
>
> 03/17 16:56:55.234: [esm] DEBUG:     IMSI[311980000033212] PTI[8] EBI[5]
> (../src/mme/esm-build.c:77)
>
> 03/17 16:56:55.235: [mme] DEBUG: [MME] DownlinkNASTransport
> (../src/mme/s1ap-build.c:186)
>
> 03/17 16:56:55.235: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-build.c:231)
>
> 03/17 16:56:55.235: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-path.c:79)
>
> 03/17 16:56:55.269: [mme] DEBUG: mme_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.270: [mme] DEBUG: s1ap_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/s1ap-sm.c:60)
>
> 03/17 16:56:55.270: [mme] DEBUG: [MME] Uplink NAS transport
> (../src/mme/s1ap-handler.c:330)
>
> 03/17 16:56:55.270: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-handler.c:347)
>
> 03/17 16:56:55.270: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-handler.c:354)
>
> 03/17 16:56:55.270: [mme] DEBUG: mme_state_operational():
> MME_EVT_ESM_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.270: [mme] DEBUG: mme_bearer_find_or_add_by_message()
> [PTI:8, EBI:0] (../src/mme/mme-context.c:2847)
>
> 03/17 16:56:55.270: [esm] DEBUG: esm_state_inactive(): MME_EVT_ESM_MESSAGE
>
> (../src/mme/esm-sm.c:61)
>
> 03/17 16:56:55.270: [esm] DEBUG: [ESM] ESM information response
> (../src/mme/esm-sm.c:93)
>
> 03/17 16:56:55.270: [esm] DEBUG:     IMSI[311980000033212] PTI[8] EBI[5]
> (../src/mme/esm-sm.c:95)
>
> 03/17 16:56:55.270: [mme] DEBUG: [EMM] Attach reject
> (../src/mme/nas-path.c:134)
>
> 03/17 16:56:55.270: [mme] DEBUG:     IMSI[311980000033212] Cause[8]
> (../src/mme/nas-path.c:135)
>
> 03/17 16:56:55.270: [esm] DEBUG: [ESM] PDN connectivity reject
> (../src/mme/esm-build.c:39)
>
> 03/17 16:56:55.270: [esm] DEBUG:     IMSI[311980000033212] PTI[8]
> Cause[27] (../src/mme/esm-build.c:41)
>
> 03/17 16:56:55.271: [mme] DEBUG: [MME] DownlinkNASTransport
> (../src/mme/s1ap-build.c:186)
>
> 03/17 16:56:55.271: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-build.c:231)
>
> 03/17 16:56:55.271: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-path.c:79)
>
> 03/17 16:56:55.271: [esm] DEBUG: esm_state_inactive(): EXIT
>
> (../src/mme/esm-sm.c:61)
>
> 03/17 16:56:55.271: [esm] DEBUG: esm_state_exception(): ENTRY
>
> (../src/mme/esm-sm.c:345)
>
> 03/17 16:56:55.271: [mme] DEBUG: [MME] UE Context release command
> (../src/mme/s1ap-path.c:285)
>
> 03/17 16:56:55.271: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-path.c:287)
>
> 03/17 16:56:55.271: [mme] DEBUG:     Group[3] Cause[0] Action[3] Delay[0]
> (../src/mme/s1ap-path.c:306)
>
> 03/17 16:56:55.271: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-path.c:79)
>
> 03/17 16:56:55.275: [mme] DEBUG: mme_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/mme-sm.c:129)
>
> 03/17 16:56:55.275: [mme] DEBUG: s1ap_state_operational():
> MME_EVT_S1AP_MESSAGE
>
> (../src/mme/s1ap-sm.c:60)
>
> 03/17 16:56:55.275: [mme] DEBUG: [MME] UE Context release complete
> (../src/mme/s1ap-handler.c:919)
>
> 03/17 16:56:55.276: [mme] DEBUG:     IP[10.100.108.9] ENB_ID[67177119]
> (../src/mme/s1ap-handler.c:933)
>
> 03/17 16:56:55.276: [mme] DEBUG:     ENB_UE_S1AP_ID[41] MME_UE_S1AP_ID[17]
> (../src/mme/s1ap-handler.c:950)
>
> 03/17 16:56:55.276: [mme] DEBUG:     Action: UE context remove()
> (../src/mme/s1ap-handler.c:963)
>
> 03/17 16:56:55.276: [mme] INFO: Removed a UE. Number of UEs is now 0
> (../src/mme/mme-context.c:63)
>
> 03/17 16:56:55.276: [emm] DEBUG: emm_state_initial_context_setup(): EXIT
>
>
>
>
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