PFCP Association Request Failure in SMF - Unable to Locate UPF

Q/A
#1

I am facing an issue with the PFCP Association request in SMF. When the system tries to send the request to UPF, it results in a failure with a ‘no such host’ error. The logs show that the system failed to setup an association with UPF because no destination IP address is specified. Here is the error message:

smf | 2023-06-14T08:44:09.953325402Z [INFO][SMF][Main] Sending PFCP Association Request to UPFupf.free5gc.org
smf | 2023-06-14T08:44:09Z [WARN][LIB][PFCP] Host lookup failed: lookup upf.free5gc.org on 127.0.0.11:53: no such host
smf | 2023-06-14T08:44:09.960139581Z [WARN][SMF][Main] Failed to setup an association with UPFupf.free5gc.org, error:no destination IP address is specified

#2

Hello, did you execute it using docker compose? Could you supply full log and pcap file? I think it might be because gtp5g is not installed.

#3

Hi ,
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#4