3GPP 38.300 v19.3.0 — the document's own text
15.3.1.2 SCTP initialization
NG-RAN establishes the first SCTP (IETF RFC 4960 [23]) using a configured IP address.
NOTE: The NG-RAN node may use different source and/or destination IP end point(s) if the SCTP establishment towards one IP end point fails. How the NG-RAN node gets the remote IP end point(s) and its own IP address are outside the scope of this specification.