External UERANSIM about docker_open5gs HOT 9 CLOSED

OK, I see.
What about your open5gs docker-compose.yaml setting?
In the amf setting:
Did you uncomment the #port #38412?

from docker_open5gs.

Hi
I met the same issue,but finally solved.
My network topology is as follows:

   ((open5gs+kamalio docker)deployed in VM1) <--------------------->(UERANSIM deployed in VM2)
       VM ip: 192.168.120.130/24                                        VM ip: 192.168.120.126/24 

Thats is in the open5gs-gnb.yaml of UERANSIM,you should modify the linkIp ngapIp gtpIp to your real used ip,for me it is 192.168.120.126(for your case,it should be 172.18.56.*)

from docker_open5gs.

Thank you for your answer. My setup is slightly different.

((open5gs docker-compose))  <---DOCKER_HOST---->  ((UERANSIM docker-compose with "bridge" n/w mode))
"Subnet": "172.22.0.0/24"      172.18.56.177        "Subnet": "172.17.0.0/16", "Gateway": "172.17.0.1"

I can ping docker host from UERANSIM container.

# ping 172.18.56.177
PING 172.18.56.177 (172.18.56.177) 56(84) bytes of data.
64 bytes from 172.18.56.177: icmp_seq=1 ttl=37 time=2.96 ms
64 bytes from 172.18.56.177: icmp_seq=2 ttl=37 time=2.35 ms_

Also I did set all three values along with the amfConfigs, here...

mcc: '001'          # Mobile Country Code value
mnc: '01'           # Mobile Network Code value (2 or 3 digits)

nci: '0x000000010'  # NR Cell Identity (36-bit)
idLength: 32        # NR gNB ID length in bits [22...32]
tac: 1              # Tracking Area Code

linkIp: 172.17.0.2   # gNB's local IP address for Radio Link Simulation (Usually same with local IP)
ngapIp: 172.17.0.2   # gNB's local IP address for N2 Interface (Usually same with local IP)
gtpIp: 172.17.0.2    # gNB's local IP address for N3 Interface (Usually same with local IP)

# List of AMF address information
amfConfigs:
  - address: 172.18.56.177
    port: 38412

# List of supported S-NSSAIs by this gNB
slices:
  - sst: 1

# Indicates whether or not SCTP stream number errors should be ignored.
ignoreStreamIds: true

But I can't understand what I am doing wrong that SCTP connection doesn't work for me?

# build/nr-gnb -c config/open5gs-gnb.yaml
UERANSIM v3.1.9
[2021-08-07 18:46:05.259] [sctp] [info] Trying to establish SCTP connection... (172.18.56.177:38412)
[2021-08-07 18:51:09.640] [sctp] [error] Connecting to 172.18.56.177:38412 failed. SCTP could not connect: Connection timed out

from docker_open5gs.

Rightly pointed out. You need to uncomment ports 38412 under amf section of your docker compose file

from docker_open5gs.

I did that already. All required ports are mapped.

from docker_open5gs.

OK, I see.
What about your open5gs docker-compose.yaml setting?
In the amf setting:
Did you uncomment the #port #38412?

yes

from docker_open5gs.

I can think of two things

1. If you are using Windows to run the containers by any change then its not possible due to lack of SCTP support
2. Can you run the below command on the host machine and send me the output?

sudo netstat -tuplnS | grep 38412

from docker_open5gs.

Yes I am using windows. May be it's windows that lack support for sctp.
So netstat doesn't work as it in windows, lacks some flags but looking at the output for netstat -n don't think it has port 38412 anywhere. But also I can't even see 3000 which is webui which is working fine.

These are the flags available in windows
NETSTAT [-a] [-b] [-e] [-f] [-n] [-o] [-p proto] [-r] [-s] [-x] [-t] [interval]

from docker_open5gs.

Closing this as the repo is not tested in Windows OS

from docker_open5gs.