Forum Discussion

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
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Jan 22, 2019

Hi Sameh,

could be a asymetric routing issue?

Depending on your network configuration you may have to enable 

snat automap
on the VS to allow the DNS server to route packets back to your F5.

If this does not work out, then make sure the DNS server is receiving the DNS request (e.g pcap on your DNS servers)

Cheers, Kai