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srsran / srsRAN_4G

Open source SDR 4G software suite from Software Radio Systems (SRS) https://docs.srsran.com/projects/4g
https://www.srsran.com
GNU Affero General Public License v3.0
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`srsue` attachs to cell successfully, but `sudo srsue` fails #1094

Open wesmwoo opened 1 year ago

wesmwoo commented 1 year ago

Issue Description

sudo srsue fails to attach to network, but srsue succeeds?

Setup Details

USRP B200 RF front end magma as open source EPC Baicells Nova227 TDD as eNB

Expected Behavior

When I run srsue, I receive the error

Network attach successful. IP: 192.168.128.22
Failed to setup/configure GW interface

To solve this, I want to run sudo srsue, which will give srsue the permission to create the TUN.

I've already tried to set the correct capabalities as per #981, but with no change in behavior.

Actual Behaviour

I cannot find the cell when I run sudo srsue:

Waiting PHY to initialize ... done!
Attaching UE...
...................
.....
...................
....
.
.......
...
.......

until I close the program.

Steps to reproduce the problem

Used the basic quick-start setup of magma as described here and here.

ue.conf file: ue.conf.txt

ninjab3s commented 1 year ago

Can you provide the full console output of both commands, including the command itself?

ehitimum commented 11 months ago

For srsue: root@srsRAN:~/.config/srsran# sudo srsue Active RF plugins: libsrsran_rf_zmq.so Inactive RF plugins: Couldn't open , trying /root/.config/srsran/ue.conf Reading configuration file /root/.config/srsran/ue.conf...

Built in Release mode using commit fa56836b1 on branch master.

Opening 1 channels in RF device=zmq with args=tx_port=tcp://:2001,rx_port=tcp://localhost:2000,id=ue,base_srate=23.04e6 Supported RF device list: zmq file CHx base_srate=23.04e6 CHx id=ue Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12 decimation) CH0 rx_port=tcp://localhost:2000 CH0 tx_port=tcp://:2001 Waiting PHY to initialize ... done! Attaching UE... Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12 decimation) Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12 decimation) . Found Cell: Mode=FDD, PCI=1, PRB=50, Ports=1, CP=Normal, CFO=-0.2 KHz Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2 decimation) Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2 decimation) Found PLMN: Id=31501, TAC=1 Random Access Transmission: seq=41, tti=1621, ra-rnti=0x2 RRC Connected Random Access Complete. c-rnti=0x46, ta=0 Network attach successful. IP: 10.45.0.2 Failed to setup/configure GW interface Killed root@srsRAN:~/.config/srsran# ^C root@srsRAN:~/.config/srsran# nano ue.conf root@srsRAN:~/.config/srsran# sudo srsue Active RF plugins: libsrsran_rf_zmq.so Inactive RF plugins: Couldn't open , trying /root/.config/srsran/ue.conf Reading configuration file /root/.config/srsran/ue.conf...

Built in Release mode using commit fa56836b1 on branch master.

Opening 1 channels in RF device=zmq with args=tx_port=tcp://:2001,rx_port=tcp://localhost:2000,id=ue,base_srate=23.04e6 Supported RF device list: zmq file CHx base_srate=23.04e6 CHx id=ue Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12 decimation) CH0 rx_port=tcp://localhost:2000 CH0 tx_port=tcp://:2001 Waiting PHY to initialize ... done! Attaching UE...

For srsenb: root@srsRAN:~/.config/srsran# srsenb Active RF plugins: libsrsran_rf_zmq.so Inactive RF plugins: --- Software Radio Systems LTE eNodeB ---

Couldn't open , trying /root/.config/srsran/enb.conf Reading configuration file /root/.config/srsran/enb.conf...

Built in Release mode using commit fa56836b1 on branch master.

Opening 1 channels in RF device=zmq with args=fail_on_disconnect=true,tx_port=tcp://:2000,rx_port=tcp://localhost:2001,id=enb,base_srate=23.04e6 Supported RF device list: zmq file CHx base_srate=23.04e6 CHx id=enb Current sample rate is 1.92 MHz with a base rate of 23.04 MHz (x12 decimation) CH0 rx_port=tcp://localhost:2001 CH0 tx_port=tcp://:2000 CH0 fail_on_disconnect=true

==== eNodeB started === Type to view trace Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2 decimation) Current sample rate is 11.52 MHz with a base rate of 23.04 MHz (x2 decimation) Setting frequency: DL=2680.0 Mhz, UL=2560.0 MHz for cc_idx=0 nof_prb=50 RACH: tti=1621, cc=0, pci=1, preamble=41, offset=0, temp_crnti=0x46 Killed root@srsRAN:~/.config/srsran#

And mme.log of my open5gs EPC: 11/19 08:07:53.712: [mme] INFO: [Added] Number of eNBs is now 1 (../src/mme/mme-context.c:2557) 11/19 08:07:53.712: [mme] INFO: eNB-S1[192.168.0.97] max_num_of_ostreams : 30 (../src/mme/mme-sm.c:150) 11/19 08:08:11.947: [mme] INFO: InitialUEMessage (../src/mme/s1ap-handler.c:402) 11/19 08:08:11.947: [mme] INFO: [Added] Number of eNB-UEs is now 1 (../src/mme/mme-context.c:4433) 11/19 08:08:11.947: [mme] INFO: ENB_UE_S1AP_ID[1] MME_UE_S1AP_ID[1] TAC[1] CellID[0x19b01] (../src/mme/s1ap-handler.c:578) 11/19 08:08:11.947: [mme] INFO: [315010123456065] Unknown UE by IMSI (../src/mme/mme-context.c:3268) 11/19 08:08:11.947: [mme] INFO: [Added] Number of MME-UEs is now 1 (../src/mme/mme-context.c:3089) 11/19 08:08:11.947: [emm] INFO: [] Attach request (../src/mme/emm-sm.c:412) 11/19 08:08:11.947: [emm] INFO: IMSI[315010123456065] (../src/mme/emm-handler.c:234) 11/19 08:08:12.024: [mme] INFO: [Added] Number of MME-Sessions is now 1 (../src/mme/mme-context.c:4447) 11/19 08:08:12.363: [mme] INFO: eNB-S1[192.168.0.97] connection refused!!! (../src/mme/mme-sm.c:166) 11/19 08:08:12.363: [mme] INFO: [Removed] Number of eNB-UEs is now 0 (../src/mme/mme-context.c:4440) 11/19 08:08:12.364: [mme] INFO: [Removed] Number of eNBs is now 0 (../src/mme/mme-context.c:2591) 11/19 08:08:18.077: [mme] ERROR: S1 context has already been removed (../src/mme/nas-path.c:90) 11/19 08:08:18.077: [emm] ERROR: emm_state_initial_context_setup: Expectation r == OGS_OK' failed. (../src/mme/emm-sm.c:1491) 11/19 08:08:24.079: [mme] ERROR: S1 context has already been removed (../src/mme/nas-path.c:90) 11/19 08:08:24.080: [emm] ERROR: emm_state_initial_context_setup: Expectationr == OGS_OK' failed. (../src/mme/emm-sm.c:1491) 11/19 08:08:30.086: [mme] ERROR: S1 context has already been removed (../src/mme/nas-path.c:90) 11/19 08:08:30.086: [emm] ERROR: emm_state_initial_context_setup: Expectation r == OGS_OK' failed. (../src/mme/emm-sm.c:1491) 11/19 08:08:36.088: [mme] ERROR: S1 context has already been removed (../src/mme/nas-path.c:90) 11/19 08:08:36.089: [emm] ERROR: emm_state_initial_context_setup: Expectationr == OGS_OK' failed. (../src/mme/emm-sm.c:1491) 11/19 08:08:42.097: [emm] WARNING: Retransmission of IMSI[315010123456065] failed. Stop retransmission (../src/mme/emm-sm.c:1466) ^C

My enb do managed to connect with the epc successfully but my ue can't connect properly. The same error is given and if I try again it will stuck on the "Attaching UE..." part.