Forum Discussion

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Nimbostratus

Apr 02, 2011

LTM Log Files

I need to be able to see tcp traffic between client and F5 and between F5 and pool memebers. Anybody knows how I can setup and view that? Thanks

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Employee

Feb 23, 2014

by default, system log (e.g. /var/log/ltm) does not include application traffic. if you want to log application traffic, you can use irule.

e.g.

Log Http Tcp Udp To Syslogng

https://devcentral.f5.com/wiki/iRules.LogHttpTcpUdpToSyslogng.ashx

MOHIT_125417
Altostratus
Dec 30, 2014
Hi Nitaas, Can't i see tcp traffic between client and F5 and between F5 and pool memebers from F5 LTM cli??? If yes can you please shrae the commands to check it.
nitass
Employee
Dec 30, 2014
do yo mean packet? if yes, you can run tcpdump. tcpdump -nni 0.0 -s0 host x.x.x.x or host y.y.y.y x.x.x.x is client ip y.y.y.y is pool member ip
shaggy
Nimbostratus
Dec 30, 2014
(more tcpdump info) - https://support.f5.com/kb/en-us/solutions/public/0000/400/sol411.html There is also the command "tmsh show sys connection" which will show you current connection details