Question

Teardown TCP connection

Asked by: ohareka

Q. What does Teardown TCP connection mean?

or Deny TCP (no connection)
or Built outbound TCP connection
or Built local-host inside

Its just that i'm new to firewalls and am trying to use the logging feature to troubleshoot connection problems.  Any advice is welcome.

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Asked On
2009-02-23 at 12:38:03ID24169780
Tags

Cisco ASA firewall

Topics

Cisco PIX Firewall

,

Checkpoint Firewall

Participating Experts
1
Points
250
Comments
3

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Answers

 

by: PeteLongPosted on 2009-02-23 at 14:18:57ID: 23716302

Log Message %PIX-6-302002: Teardown TCP connection for faddr IP_addr/port gaddr IP_addr/port laddr IP_addr/port
Explanation    This is a connection-related message. This message is logged when a TCP connection is terminated. The duration and byte count for the session are reported. If the connection required authentication, the username is reported in the last field of the message. This message is used by the PIX Firewall Manager to generate reports.
Recommended Action    None required.

http://www.cisco.com/en/US/docs/security/pix/pix43/system/message/pixemsgs.html

Dent TCP does basically what it says on the tin :)

Built outbound TCP connection means than the TCP three way handshake had been established and data can flow http://www.pccitizen.com/threewayhandshake.htm

Built local-host inside (Im guessing) that the sending client has sent a SYN Packet and the firewall has placed an entry in its embryonic state table.

 

by: oharekaPosted on 2009-02-24 at 08:30:11ID: 31550290

I think i have some reading to do but thanks for pointing me in the right direction, Kevin

 

by: PeteLongPosted on 2009-02-26 at 07:09:13ID: 23745425

ThanQ

20120131-EE-VQP-002

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