tcpreplay Stream Test Method

Test schematic diagram:

System version: Ubuntu16.04

Tcpreplay installation: apt-get install tcpreplay

(This version of the NIC name is not called eth0 and eth1, the following configuration changes)

eth0 corresponds to ens33 NIC: IP: 172.20.60.166 MAC: ec:a8:6b:82:32:c1

eth1 corresponds to the ens32 NIC: IP: 172.20.60.165 MAC: 00:13:3b:0f:6a:fb

Test the first step: Preprocess the Cache, the command is:

tcpprep -a client -i rzxSJ.pcap -o rzx.cach

This command divides the PCAP file into client and server, with client by default. When sent, the packet is sent from both the client and server.

Test step 2: Rewrite the IP address and MAC address, the command is:

Tcprewrite – e 172.20.60.166:172.20.60.165 — enet – 10-channel dmac = 00:13:3 b: 0 f: 6 a: fb, ec, a8:6 b: 82-32: c1 – enet – smac = ec: a8:6 b: 82-32: c1, 00:13:3 b: 0 f: 6 a: fb – c RZX. Cach -i rzxSJ. Pcap – o 111. Pcap

This command overwrites the IP and MAC addresses. You can use a tool such as wireshark to open 111.pcap and check whether the modification is successful.

Test step 3: Replay packet with the following command:

tcpreplay -i ens33 -I ens32 -l 100 -t -c rzx.cach 111.pcap

ens33 port corresponds to eth0. ens32 port corresponds to eth1

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