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Redirect with datagroup not working for keys longer than 31 chars

we have a strange behaviour in our F5 and we think it changed with version 14 - before it was ok.

In our iRule we do redirect based on a datagroup:

if { [ class match "https://www.xxx.de/zzzz/" eq redirects ] } {
    HTTP::respond 301 noserver Location ....
}

the datagroup entries look like: "https://www.xxx.de/bild/" := "https://www.xxx.de";,

As long as the length of the key is smaller than 32 chars everything works fine. For 31+ chars the match does not happen. The request goes through to the server without redirect and the result is a 404 because the page is not found. The following datagroup entry does not work: "https://www.xxx.de/bild/xxxxxxxxxx" := "https://www.xxx.de";,

The version of our BIG-IP:

  • BIG-IP 14.0.0.3 Build 0.0.4 Point Release 3
  • we are using the virtual edition
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Could be a bug. I have seen similar bug with F5 packet filters where there is a character limit to the name used for packet filters. I recommend opening up a case or searching the release notes to confirm if it is a bug.

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Comments on this Answer
Comment made 1 week ago by rloesche 1

It's a support case now

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