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

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sameh_atef_2110's avatar
sameh_atef_2110
Icon for Cirrus rankCirrus
Jan 21, 2019

Local Pool of DNS under Listener not working as expected

We are configuring the GTM to be working as a proxy. So, in case there is no Wide IP is being matched by the DNS query it should forward the DNS query to a local pool of DNS Servers. I have configure...
application delivery
big-ip
BIG-IP DNS
youssef1's avatar
youssef1
Icon for Cumulonimbus rankCumulonimbus
Jan 21, 2019

Hi,

 

I supose that you set a DNS profile.

 

Can you validate that in this DNS profile you set the setting "Unhandled Query Actions" to "allow":

 

Allow: The BIG-IP system forwards queries to a DNS server or pool member. If a pool is not associated with a listener and the Use BIND Server on BIG-IP setting is set to Enabled, requests are forwarded to the local BIND server.

 

regards