Redirect hosts using iRules

Thank you Yann. How can I filter on a specific network for the above. e.g. if clients = match-clients { 10.1.1.0/13; 10.2.1.0/13; ...etc } querying for "sub.domain.com" do when DNS_REQUEST { set ttl 1800 set A "[DNS::question name]. $ttl [DNS::question class] [DNS::question type]" if { [string tolower [DNS::question name]] ends_with "sub.domain.com" } { DNS::answer insert "$A 1.2.3.4" } DNS::return }

You have to use "class match" command to compare [IP::client_addr] with a datagroup that contains the filtered IP subnet. You can find several peace of code in devcentral

Thanks Yann, is the below correct when DNS_REQUEST { if { [string tolower [DNS::question name]] ends_with "sub.domain.com" } { if { ( [IP::addr [IP::client_addr] equals 10.1.0.0/13] ) or ( [IP::addr [IP::client_addr] equals 10.2.0.0/13] ) } { set ttl 10800 set A "[DNS::question name]. $ttl [DNS::question class] [DNS::question type]" DNS::answer insert "$A 10.10.10.2" } } else { return } DNS::return }