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TCP/IP Flags

admin_2
Level 3
Level 3

Does anyone have a detailed list of the exact meaning of the flags field when performing the sh conn command in the pix?

Any help would be appreciated.

2 Replies 2

martin.terry
Level 1
Level 1

These are hard to come by. This list is for the newer PIX OS (> 5.x)

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 (not used)

I inbound data

O outbound data

q SQL*Net data

n nailed connection (no supported)

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

D DNS

Not applicable

Thank You. I realize that they are hard to find.

Kevin Reynolds