Flags Displayed by the show conn detail Command

Connection Slot Flag	Description
U	Up
f	Inside FIN
F	Outside FIN
r	Inside acknowledged FIN
R	Outside acknowledged FIN
s	Awaiting outside SYN
S	Awaiting inside SYN
M	SMTP data
H	HTTP get
T	TCP SIP connection
I	Inbound data
O	Outbound data
q	SQL*Net data
d	Dump
P	Inside back connection
E	Outside back connection
G	Group
p	Replicated (unused)
a	Awaiting outside ACK to SYN
A	Awaiting inside ACK to SYN
B	Initial SYN from outside
R	RPC
H	H.323
T	UDP SIP connection
m	SIP media connection
t	SIP transient connection
D	DNS