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Persistence based on Header value
Hi all, I need to configure an iRule in order to make persistence based on hexadecimal value in HTTP header. This field is variable and can be 8 number/characters long. I was thinking of using Universal profile persistence but I'm not an expert of TCL language. Could someone help me? Thanks in advance for any help.
- natheCirrocumulus
GiJo,
If it's simply a case of the HTTP Header value is what you want to persist on, and not a substring of this value, then something like this should help:
when HTTP_REQUEST { if { [HTTP::header exists "Name"] } { persist uie [HTTP::header "Name"] } }
Hope this helps,
N
- Jo_31162Nimbostratus
Many thanks again Nathan. So,with GET command receive something like this: GET /bin HTTP/1.1 Host: x.x.x.x Accept: / z-y:012AB123
My interest field is after z-y: How LTM can read this variable hexadecimal value? Rgds
- natheCirrocumulus
Try this then:
when HTTP_REQUEST { if { [HTTP::header exists "Accept"] } { persist uie [findstr [HTTP::header Accept] /z-y: 5 end ] } }
Hope this helps,
N
- Jo_31162Nimbostratus
Hi all again, sorry for my later but customer has stopped all test for Christmas holidays. Regarding my last analisys,I saw that client produce this http requests at first access:
Dec 20 16:14:35 slot1/office-01 info tmm[20803]: Rule /Common/_log : BL 01DE57DB-01-0100002A-09CD-6C657E1E3A66B251BB0721F84F5B63D9-AA2D6AC5-0000000000000000
Dec 20 16:14:35 slot1/office-01 info tmm[20803]: Rule /Common/_log : BC 01DE57DB-01-0100002A-09CD-5B93234019D664D8E5B5EDDA2EC3A0EA-AA2D6AC5-0000000000000000
Dec 20 16:14:35 slot1/office-01 info tmm1[20803]: Rule /Common/_log : default 01-01DE57DB-0100002A-00000001-02-9839481D834EAD2B-01-FF9483C5
Dec 20 16:14:36 slot1/office-01 info tmm[20803]: Rule /Common/_log : default 01-01DE57DB-0100002A-00000002-02-88DF28915BCEF2D7-01-64793012
That are two GET and two POST
Subsequently, traffic from the same previous client are two POST:
Dec 20 16:15:12 slot1/office-01 info tmm1[20803]: Rule /Common/_log : default 01-01DE57DB-0100002A-00000003-02-ACD18B62E259B7C0-01-D8E547FD
Dec 20 16:15:13 slot1/office-01 info tmm[20803]: Rule /Common/_log : default 01-01DE57DB-0100002A-00000004-02-DC1E968BBC75898F-01-AFAF3DF6
So, I need to persist session on 01DE57DB value that is a VARIABLE numeric value that BIGIP decode into hexadecimal value.
Is it possible to do? BRgds
- abvaidya_182376NimbostratusLooking for answer to a similar question posted at below link. Please respond in case you know about it https://devcentral.f5.com/s/feed/0D51T00006i7ZqISAU
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