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

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lizunjjg_280139's avatar
lizunjjg_280139
Icon for Nimbostratus rankNimbostratus
Oct 23, 2018

i have a irules question, what mean the irules

 

2 Replies

  • if {![regexp {^[0-9]+$} [substr $len_msg 0 1]] or ![regexp {^[0-9]+$} [substr $len_msg 1 1]] or ![regexp {^[0-9]+$} [substr $len_msg 2 1]] or ![regexp {^[0-9]+$} [substr $len_msg 3 1]] }

     

  • if {![regexp {^[0-9]+$} [substr $len_msg 0 1]] or ![regexp {^[0-9]+$} [substr $len_msg 1 1]] or ![regexp {^[0-9]+$} [substr $len_msg 2 1]] or ![regexp {^[0-9]+$} [substr $len_msg 3 1]] }