Last Modified: Dec 19, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
15.1.10.8, 16.1.6.1, 17.1.3, 17.5.1.3
Opened: Nov 20, 2025 Severity: 4-Minor
With Diameter MRF setup, when the BIG-IP receives a diameter DPR message (Disconnect-Peer-Request), it sends a DPA to the peer (Disconnect-Peer-Answer) and then immediately closes the transport connection. According to RFC6733, ("Diameter Base Protocol") the transport connection should be closed by the remote peer instead.
The BIG-IP system closes the transport connection instead of waiting for the remote peer to close it.
- BIG-IP configured with a MRF Diameter setup - BIG-IP receives a Diameter DPR message
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