# Let's suppose we have two DNS servers: 8.8.8.8 and 8.8.8.9. # Our purpose is to get the DNS load balanced for the DNS servers. # Example: within the "post-auth" section add the following stuff: if ( "%{rand:2}" == "0" ) { update reply { # delete all the DNS attributes VasExperts-DHCP-DNS !* ANY VasExperts-DHCP-DNS = "8.8.8.9" VasExperts-DHCP-DNS += "8.8.8.8" } } else { update reply { # delete all the DNS attributes VasExperts-DHCP-DNS !* ANY VasExperts-DHCP-DNS = "8.8.8.8" VasExperts-DHCP-DNS += "8.8.8.9" } }