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Bug #3315

closed

SNMP MIB-2 Strange TCP Stats

Added by Pr0 vieH about 11 years ago. Updated over 9 years ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
Category:
SNMP
Target version:
-
Start date:
11/11/2013
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
2.1
Affected Architecture:
All

Description

SNMP TCP Values wrong or missing
PfSense Says:
-----SNMP query started-----
1: tcpRtoAlgorithm.0 vanj(4)
2: tcpRtoMin.0 30
3: tcpRtoMax.0 64000
4: tcpMaxConn.0 -1
5: tcpActiveOpens.0 23
6: tcpPassiveOpens.0 10618
7: tcpAttemptFails.0 0
8: tcpEstabResets.0 63
9: tcpCurrEstab.0 0
10: tcpInSegs.0 156903
11: tcpOutSegs.0 235807
12: tcpRetransSegs.0 703
....
33: tcpInErrs.0 119887

My Server connected through the PfSense Says...
-----SNMP query started-----
1: tcpRtoAlgorithm.0 other(1)
2: tcpRtoMin.0 200
3: tcpRtoMax.0 120000
4: tcpMaxConn.0 -1
5: tcpActiveOpens.0 142366525
6: tcpPassiveOpens.0 65676
7: tcpAttemptFails.0 203741
8: tcpEstabResets.0 474750
9: tcpCurrEstab.0 603
10: tcpInSegs.0 2378748674
11: tcpOutSegs.0 2093853134
12: tcpRetransSegs.0 89950113
......
7618: tcpInErrs.0 51951793
7619: tcpOutRsts.0 21369287

tcpCurrEstab.0 is 0 all the Time...

Actions #1

Updated by Chris Buechler almost 11 years ago

  • Status changed from New to Rejected

It works as it's supposed to. That's connections established by, or from, the firewall itself, not traffic through it. SNMP matches up to the output of:

netstat -an |grep ESTABLISHED | wc -l 

as it should.

In a stock config, there will be very few if any established TCP connections sourced from or destined to the firewall. Only if you're actively in the web interface, or SSH to the firewall, will you have anything matching tcpCurrEstab. In some instances with certain packages, like where running Squid the firewall host will have many active TCP connections.

Actions #2

Updated by Chris Buechler over 9 years ago

  • Target version deleted (2.1.1)
Actions

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