[Click] ipreassembler problem

[Nicholas Weaver]

On Wed, Sep 19, 2007 at 05:42:31PM +0200, Marcin composed:
> Ok I tried, but this time output trace is empty. While input trace 
> contains several fragmented packets.

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

You need to tell MarkIPHeader how far its off (14 for ethernet).

Also, as was pointed out, you need to strip the non-IP packets too.

> 
> Thanks for help,
> Regards,
> Marcin
> Nicholas Weaver pisze:
> > On Wed, Sep 19, 2007 at 05:20:35PM +0200, Marcin composed:
> >   
> >> 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.
> >>     
> >
> > CheckIPHeader or MarkIPHeader is needed before the IPReassembler.
> >
> >
> >
> >   
> >> Marcin
> >>
> >>
> >>
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> 
> 
> 
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-- 
Nicholas C. Weaver                               nweaver at icsi.berkeley.edu
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