v1.2.2 - Created by Working Together

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UE address subnet

  • Change default UE address subnet from 45.45.0.1/16 to 10.45.0.1/16 (#369) – spencersevilla

New Features

Provide SGW GTP(S1) address to be advertised inside S1AP messages (#367) – herlesupreeth

This feature is useful in scenarios where SGW is run inside a container or openstack vm i.e. behind 1-to-1 mapping NAT. In docker/openstack environment, we often have 1-to-1 mapped NAT IP address in order for eNB to reach SGW. But, this 1-to-1 mapping NAT IP address is not seen on SGW host and hence non UDP socket bindable. Since SGW can only bind to IP address visible in it’s host (usually a private IP beind a NAT), it advertises the same to UE in S1AP message resulting in eNB not able to reach SGW on Uplink. This commit solves this issue by providing a means to advertise a different IP address than the one SGW UDP socket is bound to.

Example of sgw.yaml to use this feature:

logger:
    file: /var/log/open5gs/sgw.log
    level: debug

parameter:
    no_ipv6: true

sgw:
    gtpc:
      addr: 127.0.0.2
    gtpu:
      dev: ens3
      advertise_addr:
        - 172.24.15.30
        - fe80::f816:3eff:fe15:fe34

    OR

    gtpu:
      addr: 10.4.128.21
      advertise_name: sgw1.epc.mnc001.mcc001.3gppnetwork.org

    OR

    gtpu:
      dev: ens3
      advertise_name: sgw1.epc.mnc001.mcc001.3gppnetwork.org
Provide MTU size to be advertised in PCO options (#376) – herlesupreeth

This feature can be used for provisioning a limit on the size of the packets sent by the MS to avoid packet fragmentation in the backbone network between the MS and the GGSN/PGW and/or across the (S)Gi reference point) when some of the backbone links does not support packets larger then 1500 octets (ETSI TS 123 060 V15.5.0 Annex C)

Example of pgw.yaml to use this feature:

logger:
    file: /var/log/open5gs/pgw.log

parameter:

pgw:
    freeDiameter: /etc/open5gs/freeDiameter/pgw.conf
    gtpc:
      - addr: 127.0.0.3
      - addr: ::1
    gtpu:
      - addr: 127.0.0.3
      - addr: ::1
    ue_pool:
      - addr: 10.45.0.1/16
      - addr: cafe::1/64
    dns:
      - 8.8.8.8
      - 8.8.4.4
      - 2001:4860:4860::8888
      - 2001:4860:4860::8844
    mtu: 1400

Enhancement

Bug Fixed

  • Check Session-Context before Sending InitialContextSetupRequest (#384) – EugeneBogush
  • Fix for the systemd reload (#393) – EugeneBogush
  • Fix the systemd unit file for Debian (#377) – rafael2k
  • Add build dependancy to ‘git’ (#373) – laf0rge
  • Add PGW dependancy to ‘systemd-networkd’ – spencersevilla
  • Fix the WebUI installation script for Debian

Download – v1.2.2.tar.gz