Forum Discussion

fr55tam_245172's avatar
fr55tam_245172
Icon for Nimbostratus rankNimbostratus
Jan 27, 2016

F5 irule: HTTP_REQUEST switch -glob HTTP::uri not working with pool

Hi,   I am trying to use a HTTP request iRule to loadbalance from a virtual IP.   If I add the pool directly to the VIP as a default pool; it displays fine.   When I try the below iRule it d...
application delivery
BIG-IP
cloud
iRules
VernonWells's avatar
VernonWells
Icon for Employee rankEmployee

Firstly, is there anything in /var/log/ltm when you use the iRule?

If not, I recommend that you associate the iRule and run a packet capture on the BIG-IP:

You will want to dump against the interface 0.0, which is the logical cross-connect between the switch and forwarding plane (or you can use any, which, on more recent versions of BIG-IP, is synonymous). You may choose to use limiters, as in:

 

tcpdump -nni 0.0 -s0 host  or '(host  and port ')

 

This will also capture any monitor traffic for the pool member, so you may wish to temporarily change the monitor to gateway_icmp.

fr55tam_245172's avatar
fr55tam_245172
Icon for Nimbostratus rankNimbostratus
Jan 27, 2016
Thank you, I will try this, the only detail in my log when using the irule is of the log details you mentioned in the first post, they work successfully but no reference to the pool. I assume you still want me to run this?