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William_Benett1's avatar
William_Benett1
Icon for Nimbostratus rankNimbostratus
Oct 20, 2006

LB based on DNS response?

Hi folks,     I'm trying to write an iRule to perform a DNS lookup on the IP address of the client, and based on something contained in the reverse, make a load balancing decision.     Ini...
application delivery
dev
devops
iRules
William_Benett1's avatar
William_Benett1
Icon for Nimbostratus rankNimbostratus
Oct 24, 2006
It took me a while, but I figured it out.

 

 

This code seems to work:

 

 

when CLIENT_ACCEPTED {

 

NAME::lookup [IP::client_addr]

 

}

 

when NAME_RESOLVED {

 

if { [NAME::response] contains "abc.com"} then {

 

LB::detach

 

pool www-pool2

 

} else {

 

LB::detach

 

pool www-pool1

 

}

 

}

 

 

The key is detaching the LB pool before assigning a new one.