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

Forum Discussion

jrmorris_151361's avatar
jrmorris_151361
Icon for Nimbostratus rankNimbostratus
Dec 23, 2014

DNS:rrtype undefined procedure

I am trying to create the following iRule to help rate limit DNS queries for amplification protection as noted in a few articles. But I get an undefined error. I've confirmed DNS:rrtype is a good var...