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

Forum Discussion

sysadmin_2015_2's avatar
sysadmin_2015_2
Icon for Nimbostratus rankNimbostratus
Jul 17, 2018

iRule - Switch IP to Host Name

Hello,   We have a special case were we have a customer sending traffic by IP instead of host name. Instead of https://test.f5.com/api/example there hitting us as https://37.123.55.109/api/exampl...
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nathe's avatar
nathe
Icon for Cirrocumulus rankCirrocumulus
Jul 17, 2018

Would this irule help? 

when HTTP_REQUEST {
  if { ( [HTTP::host] eq "37.123.55.109" ) and 
      ( [HTTP::uri] starts_with "/api/example" ) } {
    HTTP::respond 301 Location "https://test.f5.com[HTTP::uri]"
    }
}

Not got my lab fired up so would need to verify syntax and test.

Hope this helps,

N