Set Static IP for UE

In this demo, we will practice:

• Static IP Pool settings
• Set Static IP address for UE in webconsole
• Verify the IP address settings

1. Static IP pool settings

We first have to know the static IP pool for specific DNN.

• In smfcfg.yaml, the userplaneInformation is what we need now:
  • The following files remove some settings; please refer to the sample configuration file.
  • We set two slices with one DNN each for this demo:
    • 01010203
      • internet
        • pools: 10.60.0.0/16
        • staticPools: 10.60.100.0/24
    • 01112233
      • internet
        • pools: 10.61.0.0/16
        • staticPools: 10.61.100.0/24

configuration:
  userplaneInformation:         # list of userplane information
    upNodes:                     # information of user-plane node (AN or UPF)
      UPF:                       # the name of the node
        type: UPF                # the type of the node (AN or UPF)
        sNssaiUpfInfos:          # S-NSSAI information list for this UPF
          - sNssai:              # S-NSSAI(Single Network Slice Selection Assistance Information)
              sst: 1             # Slice/Service Type (uinteger, range: 0~255)
              sd: 010203         # Slice Differentiator(3 bytes hex string, range: 000000~FFFFFF)
            dnnUpfInfoList:      # DNN information list for this S-NSSAI
              - dnn: internet
                pools:
                  - cidr: 10.60.0.0/16
                staticPools:
                  - cidr: 10.60.100.0/24
          - sNssai:
              sst: 1
              sd: 112233
            dnnUpfInfoList:
              - dnn: internet
                pools:
                  - cidr: 10.61.0.0/16
                staticPools:
                  - cidr: 10.61.100.0/24

2. Create Subscribers with Static-IP

In this step, we would go through how to set static IP addresses for subscribers and verify the settings.

• You could also refer to this for how to create subscribers.
• We would create two subscribers:
  • imsi-208930000000001
  • imsi-208930000000002
  • Both have slices 010203 and 112233, but have different IP address settings.

imsi-208930000000001

• 010203

  • A Static IPv4 Address toggle under the slices' DNN section would be displayed.

  

  • Turn it one, and set the IPv4 address you want to use for this UE of this DNN.

    • We set 10.60.100.163

      

    • Click Verify

      • If the setting is OK, the webconsole will show "OK" in an alert box.

      

• 112233

  • Set the IPv4 address you want for this UE of this DNN.

    • We set 10.60.100.150

      • Note that 10.60.100.150 is not in 10.61.100.0/24 (The Static-IP pool for this DNN)

      

    • Click Verify

      • Since the IP address is not in the Static-IP pool for this DNN, it would pop up "No" with the reason.

      

    • Correct the IP and Verify again: 10.61.100.150

      

imsi-208930000000002

• 010203

  • Set 10.60.100.163 for this DNN and click Verify.

    • Note that 10.60.100.163 was set to another UE

    
    - Change to 10.60.100.165

• 112233

  • Keep the Static IPv4 Address toggle off, as Dynamic IPv4 address for this DNN.

Test with UERANSIM

• You can refer to this for instructions on how to use UERANSIM.

imsi-208930000000001

• This UE gets 10.60.100.163 for slice 010203, which is what we assigned before.
• This UE gets 10.61.100.165 for slice 112233, which is what we assigned before

imsi-208930000000002

• This UE gets 10.60.100.165 for slice 010203, which is what we assigned before
• This UE gets 10.61.0.1 for slice 112233, the IP address in pools assigned by SMF.