Re: [Tcpreplay-users] tcprewrite issue conversion of DLT

[Aaron T. <syn...@gm...>]

Per the documentation:
http://tcpreplay.synfin.net/wiki/tcprewrite#RewritingLayer2

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

You need to specify both source and destination MAC since Cisco HDLC
has neither.

On Sun, Sep 12, 2010 at 12:51 PM, Vikas Sharma <vs...@gm...> wrote:
> Dear Aaron,
>
> Referring to your prompt response, please clarify. Which MAC addresses (src
> / dst) ?
>
> Can you please give me an example command ?
>
> Regards
> Vikas
>
> On Sun, Sep 12, 2010 at 11:20 PM, Aaron Turner <syn...@gm...> wrote:
>>
>> Actually, it's asking you for MAC addresses.  Cisco HDLC does not have
>> this information in the header and they are required for Ethernet.  In
>> your case, I recommend you just make them up- any valid MAC address
>> will work.
>>
>> On Sun, Sep 12, 2010 at 4:58 AM, Vikas Sharma <vs...@gm...> wrote:
>> > Dear Mr. Aaron Turner,
>> >
>> >
>> >
>> > My company is into security systems and had received a few CiscoHDLC
>> > pcap
>> > files (of 85 MBs each).
>> >
>> >
>> >
>> > Our software can only read only Ethernet packets and accordingly we
>> > tried to
>> > convert the CiscoHDLC pcap files into Ethernet (DLT) by using
>> >
>> >
>> >
>> > tcprewrite –dlt=enet --infile=input.pcap --outfile=output.pcap
>> >
>> >
>> >
>> > However the system (Ubuntu Lucid) asks for the source IP address and we
>> > are
>> > not able to provide that since that is not known to us (these are pcap
>> > files
>> > captured by an Endace DAG card on an OC3, STM line).
>> >
>> >
>> >
>> > Please suggest a way to convert CiscoHDLC pcap files into Ethernet pcap
>> > files.
>> >
>> >
>> >
>> > I have enclosed the protocol stack of the CiscoHDLC pcap file along with
>> > this email
>> >
>> > I await your response,
>> >
>> >
>> >
>> > Regards
>> >
>> >
>> >
>> > Vikas Sharma
>> >
>> >
>> > ------------------------------------------------------------------------------
>> > Start uncovering the many advantages of virtual appliances
>> > and start using them to simplify application deployment and
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>> >
>>
>>
>>
>> --
>> Aaron Turner
>> http://synfin.net/         Twitter: @synfinatic
>> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix &
>> Windows
>> Those who would give up essential Liberty, to purchase a little temporary
>> Safety, deserve neither Liberty nor Safety.
>>     -- Benjamin Franklin
>> "carpe diem quam minimum credula postero"
>>
>>
>> ------------------------------------------------------------------------------
>> Start uncovering the many advantages of virtual appliances
>> and start using them to simplify application deployment and
>> accelerate your shift to cloud computing
>> http://p.sf.net/sfu/novell-sfdev2dev
>> _______________________________________________
>> Tcpreplay-users mailing list
>> Tcp...@li...
>> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users
>> Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
>
>
> ------------------------------------------------------------------------------
> Start uncovering the many advantages of virtual appliances
> and start using them to simplify application deployment and
> accelerate your shift to cloud computing
> http://p.sf.net/sfu/novell-sfdev2dev
>
> _______________________________________________
> Tcpreplay-users mailing list
> Tcp...@li...
> https://lists.sourceforge.net/lists/listinfo/tcpreplay-users
> Support Information: http://tcpreplay.synfin.net/trac/wiki/Support
>



-- 
Aaron Turner
http://synfin.net/         Twitter: @synfinatic
http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows
Those who would give up essential Liberty, to purchase a little temporary
Safety, deserve neither Liberty nor Safety.
    -- Benjamin Franklin
"carpe diem quam minimum credula postero"