[Click] ipreassembler problem

[Eddie Kohler]

IPReassembler requires the IP header annotation.

The easiest way to make sure that a FromDump element produces IP packets is 
with the FORCE_IP argument.

FromDump(in.dmp, STOP true, FORCE_IP true) -> IPReassembler -> ToDump(out.dmp)

THis will work for many different types of pcap trace files, not just Ethernet 
encapsulation.

Note that reassembled packets will have no MAC headers at all.  The dump will 
get very confused if you mix no-MAC with MAC packets.  You probably want this.

FromDump(in.dmp, STOP true, FORCE_IP true)
    -> StripToNetworkHeader
    -> IPReassembler
    -> ToDump(out.dmp, ENCAP IP)

Eddie


Marcin wrote:
> Dear All,
>  
> I need to take all fragmented packets from the trace file reassemble 
> them and output to another trace file. I tried to do it this way:
>  
> FromDump(in.dmp, STOP true) -> IPReassembler -> ToDump(out.dmp)"
> 
> I receive this error message:
>  
> click: ../elements/ip/ipreassembler.cc:225: virtual Packet* 
> IPReassembler::simple_action(Packet*): Assertion `iph' failed.
>  
> Any tips would be appreciated.
>  
> Regards,
> Marcin
> 
> 
> 
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