New connection and Active connection

Hi,

 

for DNS via UDP I would recommend to use a dedicated virtual server in mode standard configured on port 53 for UDP protocol with a pre-defined "udp_gtm_dns" profile assigned.

 

This specific profile has the "Datagram LB" option enabled and a 5 seconds timeout. It will delete the connection table entry right after the servers response.

 

Perhaps you may want to create a second virtual server to handle DNS via TCP as well using the same IP in mode "Performance (Layer 4)" with to handle TCP port 53 with a fastL4 profile.

 

In case you got the DNS services add-on module or run a LTM/GTM combo, both virtual servers may run in mode "standard" and use a DNS profile allowing you to provide DNS protocol proxy capabilities by your virtual server.

 

Thanks, Stephan Thanks, Stephan