Hi guys,
I have working with tcpreplay suite and I find something interesting that I
can't explain until now.
My environment is made of one pcap file that I use tcprewrite to replace
source/destiny IP, MAC and the pcap file originated does not contain the
dns query, like:
Before tcprewrite modification:
13:00:00.000181 IP 192.168.0.3.18418 > 10.153.0.17.53: 42386 [1au] A?
www.example.com. (47)
After:
13:00:00.000181 IP 192.168.0.3.18418 > 10.153.0.17.50073: UDP, length 47
I got to see this with tcpdump.
Has anyone ever experienced this?
Bellow some more informations.
# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.3 LTS
Release: 16.04
Codename: xenial
# tcpreplay -V
tcpreplay version: 4.2.5 (build git:v4.2.5)
Copyright 2013-2017 by Fred Klassen <tcpreplay at appneta dot com> - AppNeta
Copyright 2000-2012 by Aaron Turner <aturner at synfin dot net>
The entire Tcpreplay Suite is licensed under the GPLv3
Cache file supported: 04
Not compiled with libdnet.
Compiled against libpcap: 1.7.4
64 bit packet counters: enabled
Verbose printing via tcpdump: enabled
Packet editing: disabled
Fragroute engine: disabled
Injection method: PF_PACKET send()
Not compiled with netmap
# tcpdump --v
tcpdump version 4.9.0
libpcap version 1.7.4
OpenSSL 1.0.2g 1 Mar 2016
Regards,
Felipe
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