vppctl lb as $IP_TO_PKTGEN_NET"/32" $DNS_IPADDR
GRE=$(vppctl create gre tunnel src $IP_TO_DNS_NET dst $DNS_IPADDR)
-vppctl set int ip address $GRE $GRE_IPADDR"/24"
+vppctl set int ip address $GRE $GRE_IPADDR"/32"
vppctl set int state $GRE up
# Update the number of vDNSs currently active