Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

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tottenc's avatar
tottenc
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May 21, 2010

Question on Select_pool_member_based_on_ HTTP_query_string_parameter iRule

I'm new to iRules as well as the f5's, and I've been trying to use the functionality from the Select_pool_member_based_on_ HTTP_query_string_parameter I found on devcentral. I've changed it so that i...
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tottenc's avatar
tottenc
Icon for Nimbostratus rankNimbostratus
May 24, 2010
Hey Aaron,

 

 

The client is staying on hostname throughout the site so I don't think that would cause the problem.

 

 

I enabled debugging and got the following:

 

 

Page works fine(http):

 

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Inserting cookie member=2

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Successfully selected: 10.209.xx.xx 80

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Parsed IP port: 10.209.xx.xx 80

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Query contained the member parameter or member cookie was present. Parsed member cookie value: 2

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Active members for pool F5-www (sorted): {10.209.xx.xx 80} {10.209.xx.xx 80}

 

Mon May 24 12:13:22 CDT 2010 info local/tmm1 tmm1[27755] Rule member-select : 10.210.xx.xx:57385: Debug enabled on GET request for www.mytestURL.com/images/Base/button-standard-bg.gif

 

 

 

Page failure(transition to https):

 

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Inserting cookie member=2

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Successfully selected: 10.209.xx.xx 80

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Parsed IP port: 10.209.xx.xx 80

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Query contained the member parameter or member cookie was present. Parsed member cookie value: 2

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Active members for pool F5-www (sorted): {10.209.xx.xx 80} {10.209.xx.xx 80}

 

Mon May 24 12:23:20 CDT 2010 info local/tmm tmm[27754] Rule member-select : 10.210.xx.xx:57601: Debug enabled on GET request for www.mytestURL.com/Contact.aspx

 

 

This repeats several times for each page hit and on the pages that work, the GET changes for each page item it is retreiving images/css/js etc. For the ones that fail, it repeats the www.mytestURL.com/Contact.aspx rather than getting any further.

 

 

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