FTD tcpreplay test diagram vlan -maarai-local 172.16.1.0/24 1 Device Service IP FMC704-01 https/ssh 100.71.227.169 admin/Cisco!123 ftd701-01 ssh 100.71.228.26:60126 admin/Admin!123 CSR1000v ssh 100.71.228.26:60090 cisco/cisco123 Ubuntu ssh 100.71.228.27 ftd704-01 Gi4 .240 vlan1052 10.61.52.128/25 Gi3 .240 CSR1000v-01 ens192 .1 vlan1027 10.60.27.128/25 Gi2 .240 Gi0/1 v1052 .254 Gi0/0 v1027 .254 10.60.27.54 /32 112.137.56.39/32 Dummy GW 10.61.52.200 Dummy GW 10.60.27.200 tcpreplay 112.137.56.38/32 Ubuntu 32bit mask static route for replayed packets to reach Dummy GW to output packets from egress interface Static arp entry of Dummy GW’s IP with dummy MAC to output packets from egress interface Dsiable TCP sequence number randomization With tcprewrite , Removed vlan tag Changed MAC address to send out packets to router 32bit mask static route to split traffic according to their direction; from client to server and from server to client.