From: Matthew Poole (matthew.poole@blueyonder.co.uk)
Date: Sun Jun 15 2003 - 15:13:19 GMT-3
Hi,
I have 2 methods, the first is the same as you mentioned. I do an extended
trace, destination address 255.255.255.255, source interface is the outgoing
interface, specifying the minimum TTL to be 8 (any figure will do as long as
it is enough to get to the host) and the port number as 4000 or whatever
port you mention in your access lists. It's easy to see if you log your
debugging, though you will only get one. I suspect that you could set the
count to be 100 and max hop count also to 8 for 100 port 4000 trace's though
I never tried it.
My second method is using a UDP sender program somebody gave me, it sends a
continuous stream of UDP's on port 4000. Mail me if you want a copy - it may
take me a few days to get that to you though.
I can also confirm that the doc CD omitted a directed broadcast on the
egress interface of the last hop router.
HTH.
Mat.
----- Original Message -----
From: "R.Srikanth" <srikanth@cisco.com>
To: "Matthew Poole" <matthew.poole@blueyonder.co.uk>; "Brian Dennis"
<brian@labforge.com>; "'SHARMA,MOHIT (HP-Germany,ex1)'"
<mohit.sharma@hp.com>; <ccielab@groupstudy.com>
Sent: Monday, June 16, 2003 10:22 AM
Subject: Re: IP multicast helper
> Hi,
>
> Could you please share how do you test this scenario ? I tried to generate
> packets with specific UDP port numbers using extended traceroute, but
found
> it difficult since each probe generated by the traceroute command
increments
> the port number sequentially.
>
> Thanks,
>
> Srikanth.
>
>
> ----- Original Message -----
> From: "Matthew Poole" <matthew.poole@blueyonder.co.uk>
> To: "Brian Dennis" <brian@labforge.com>; "'SHARMA,MOHIT (HP-Germany,ex1)'"
> <mohit.sharma@hp.com>; <ccielab@groupstudy.com>
> Sent: Sunday, June 15, 2003 1:06 PM
> Subject: Re: IP multicast helper
>
>
> > Hi,
> > Should there be a directed broadcast statement on the outgoing interface
> of
> > the last hop router. In the example they don't have one, though if I
> recall
> > correctly when I last played with this it wouldn't work without it.
> >
> > Any thoughts? I am planning on playing with this again today, I'll post
> my
> > results.
> >
> > Mat.
> > ----- Original Message -----
> > From: "Brian Dennis" <brian@labforge.com>
> > To: "'SHARMA,MOHIT (HP-Germany,ex1)'" <mohit.sharma@hp.com>;
> > <ccielab@groupstudy.com>
> > Sent: Sunday, June 15, 2003 7:30 PM
> > Subject: RE: IP multicast helper
> >
> >
> > > Here is the example from the DocCD.
> > >
> > >
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/
> > > ip_c/ipcprt3/1cdmulti.htm#1002616
> > >
> > >
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/
> > > ip_c/ipcprt3/1cdmulti.htm#1003511
> > >
> > > Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> > > SHARMA,MOHIT (HP-Germany,ex1)
> > > Sent: Sunday, June 15, 2003 9:33 AM
> > > To: ccielab@groupstudy.com
> > > Subject: IP multicast helper
> > >
> > > HI All,
> > >
> > > Could somebody please shed some light on this command-
> > > ip multicast helper-map cpommand, it pops up quite a lot, and cisco
only
> > > has
> > > the command syntax which in itself is an enigma.
> > > An example would be great.
> > >
> > > Thanks as always.
> > >
> > > Smiles,
> > > Mohit.
> >
> >
> > _______________________________________________________________________
> > You are subscribed to the GroupStudy.com CCIE R&S Discussion Group.
> >
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