Forum Discussion

sctkd's avatar
sctkd
Icon for Altostratus rankAltostratus
Mar 15, 2021

DNS irule / topology

Hello-   I have a DNS irule in place to select a particular pool based on LDNS source subnet. However, the WIP load balancing method still overrides my irule. For example, with the irule in pla...
BIG-IP DNS
devops
iRules
Super-NetOps
eey0re's avatar
eey0re
Icon for Cirrostratus rankCirrostratus
Mar 16, 2021

Just to check - are you are adding this iRule as a GTM iRule (DNS > GSLB > iRules) attached to the WideIP, not as an LTM iRule attached to the Virtual Server (DNS Listener)?

 

Are you possibly using a non-zero route-domain with your DNS listener? If so, you may need to add that route domain for the IP::addr subnet comparison to work.