Comment 23 for bug 1817936

when issue occured.
in echo-glance-api.cap (tcpdump -i any -vv port 9292 -w echo-glance-api.cap)
No468: 10.10.10.3:13550 ---> 172.16.192.99:9292
in echo-glance-api.con (conntrack -o timestamp -E -p tcp --dport 9292)
[1564902343.325301] [NEW] tcp 6 120 SYN_SENT src=10.10.10.3 dst=10.98.65.211 sport=53720 dport=9292 [UNREPLIED] src=172.16.192.99 dst=10.10.10.3 sport=9292 dport=13550
[1564902343.325305] [UPDATE] tcp 6 60 SYN_RECV src=10.10.10.3 dst=10.98.65.211 sport=53720 dport=9292 src=172.16.192.99 dst=10.10.10.3 sport=9292 dport=13550
The sport was changed from 53720 to 13550. it seems NAT change the port. will check netfliter code.