i followed your instructions with the commands mentioned below

tcprewrite --enet-dmac=00:55:22:AF:C6:37 --enet-smac=00:44:66:FC:29:AF 
--infile=input.pcap --outfile=output.pcap

tcpreplay --intf1=eth0 "output.pcap"

no error was seeen with this command, however, i cannot see the packets through 
wireshark. 

Is it because i am doing this all in Vmware platform??? ( I am using the 
virtual mac address for smac taken from ubuntu installed in vmware). If yes, 
what could be its possible solution???


(I was wondering about its usage. 
can you please clarify me what this command is actually doing. Why do we need 
that --outfile??? Even if we give the same pcap name as input.pcap, the command 
works fine. So i am really confused)





________________________________
 From: Ali Gouta <ali.go...@gmail.com>
To: Main forum for tcpreplay <tcpreplay-users@lists.sourceforge.net> 
Sent: Thursday, December 15, 2011 6:41 PM
Subject: Re: [Tcpreplay-users] sending pcap files from one computer to another 
using tcpreplay
 

tcprewrite --enet-dmac=00:55:22:AF:C6:37 --enet-smac=00:44:66:FC:29:AF 
--infile=input.pcap --outfile=output.pcap

If the targeted card has the adress "00:55:22:AF:C6:37" and the one you are 
sending has the adress "00:44:66:FC:29:AF" then you have to type this command, 
then use tcpreplay as following:
tcpreplay --intf1=eth0 "output.pcap"

output.pcap is the generated file of the command tcprewrite.

Now if you use tshark/tcpdump/wireshark (I recommand REALLY tshark) on the 
other device (the one whose mac adress "00:55:22:AF:C6:37") you will see 
packets getting in. (Then they will be dropped as after checking routing table 
they won't find the next hope!!!)

Good luck


On Thu, Dec 15, 2011 at 6:18 PM, Prosiac Akin <cramped_ga...@yahoo.com> wrote:

Hello there,
>
>
>I am not dealing with Vlans. Its the simple network with LANS (same network 
>group). For my case, i don't want to send files through 2 interfaces, 
>one is enough and for my currrent use, one directional traffic is also OK. 
>FIrst i need to check one directional and then i will check bidirectional. But 
>even fror one directional traffic, what command should i use??
>
>
>sudo tcprewrite --endpoints=192.168.234.139:192.168.15.215 
>--cachefile=dhcp.cache --infile=dhcp.pcap --outfile=dhcp.pcap 
--skipbroadcast ?? 
>
>without the one with red marks 
>
>
>
>or??
>
>
>tcprewrite --enet-dmac=00:55:22:AF:C6:37 --enet-smac=00:44:66:FC:29:AF 
>--infile=input.pcap --outfile=output.pcap ???
>
>
>
>
>
>
>
>
>
>________________________________
> From: Ali Gouta <ali.go...@gmail.com>
>To: Main forum for tcpreplay <tcpreplay-users@lists.sourceforge.net> 
>Sent: Thursday, December 15, 2011 6:11 PM
>Subject: Re: [Tcpreplay-users] sending pcap files from one computer to another 
>using tcpreplay
>
>
>
>You need at first to change mac adresses of the trace or pcap file you are 
>replaying (use tcprewrite) to the source and destination of your cards 
>(ifconfig to know them).
>Chcek if you are dealing with Vlans !!!
>
>Cache file  you will need if you want to seperate downlink from the uplink 
>:means that you send your pcap file from 2 interfaces not only one !!!
>Your use case: sending the trace file from 1 pc to another means you won't 
>need the cache file( or you can use it but in this case you will send only one 
>direction not both)
>
>Good luck
>
>On Thu, Dec 15, 2011 at 5:53 PM, Prosiac Akin <cramped_ga...@yahoo.com> wrote:
>
>hello all,
>>
>>
>>i am trying  to send the pcap file from one pc to another 
while going through the tcpreplay website, i found
>>
>> tcprewrite --endpoints=10.10.1.1:10.10.1.2 --cachefile=input.cache 
>>--infile=input.pcap --outfile=output.pcap --skipbroadcast 
>>
>>does this endpoints means (two computers)???
>>
>>If it is for the two pcs,  i tried to issue that command 
>>sudo tcprewrite --endpoints=192.168.234.139:192.168.15.215 
>>--cachefile=dhcp.cache --infile=dhcp.pcap --outfile=dhcp.pcap --skipbroadcast
>>
>>where 192.168.234.139 is the ip of the computer which is sending the pcap 
>>file and 192.168.15.215 is the ip of the computer which i am destined to.
>>
>>But i got this error
>>Fatal Error: unable to open dhcp.cache:No such file or directory
>>
>>I am not aware how to create that cachefile for this process. and i don't 
>>know whether i am following the right process or not.
>>
>>Could you please help/suggest the method of doing so..
>>
>>
>>------------------------------------------------------------------------------
>>10 Tips for Better Server Consolidation
>>Server virtualization is being driven by many needs.
>>But none more important than the need to reduce IT complexity
>>while improving strategic productivity.  Learn More!
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>>
>
>------------------------------------------------------------------------------
>10 Tips for Better Server Consolidation
>Server virtualization is being driven by many needs.  
>But none more important than the need to reduce IT complexity 
>while improving strategic productivity.  Learn More! 
>http://www.accelacomm.com/jaw/sdnl/114/51507609/
>_______________________________________________
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>
>------------------------------------------------------------------------------
>10 Tips for Better Server Consolidation
>Server virtualization is being driven by many needs.
>But none more important than the need to reduce IT complexity
>while improving strategic productivity.  Learn More!
>http://www.accelacomm.com/jaw/sdnl/114/51507609/
>_______________________________________________
>Tcpreplay-users mailing list
>Tcpreplay-users@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/tcpreplay-users
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>

------------------------------------------------------------------------------
10 Tips for Better Server Consolidation
Server virtualization is being driven by many needs.  
But none more important than the need to reduce IT complexity 
while improving strategic productivity.  Learn More! 
http://www.accelacomm.com/jaw/sdnl/114/51507609/
_______________________________________________
Tcpreplay-users mailing list
Tcpreplay-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/tcpreplay-users
Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
------------------------------------------------------------------------------
10 Tips for Better Server Consolidation
Server virtualization is being driven by many needs.  
But none more important than the need to reduce IT complexity 
while improving strategic productivity.  Learn More! 
http://www.accelacomm.com/jaw/sdnl/114/51507609/
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