[wt4hq] Bridgehead-Bug / LogSync

[Mario Lorenz]

Am 09. Jul 2009, um 22:55:12 schrieb Laurent HAAS - F6FVY:
> Hi again
> 
> Mario Lorenz a écrit :
> 
> > Unexpectedly however I saw the ADDQSO traffic on the tunnel server:
> > ADDQSO: "E15SSB2" "C40SSB" "X10SSB_1" 1247162569 142276 1 5 0 0 4 1 25 "4L1FP"
> >  "59" "59" "" "" "" 0 "" "" "" 59002
> > 
> > (E115SSB and C40SSB are in the same LAN, C40SSB was turned on fresh)
> > 
> > I do not remember seing this last year, so I dont know if this behaviour
> > has changed. Shouldnt the tunnel client
> > know - similar to the server - which station is local and which is
> > on the WAN, and hence not forward this kind of traffic ?
> 
> There is no filtering on ADDQSO: in wtTunnel
> 
> Filtering is applied only on IHAVE: (described in my previous message) 
> and NEEDQSO: (only those with external destination are forwarded to the 
> WAN).
> like this. Actually, the ADDQSO: _must_ be forwarded, as it is the same 
> frame that is used when you manually enter a QSO. Maybe we could 
> consider a different set of frame IDs for sync, and filter it 
> appropriately in wtTunnel... (Just an idea - No deep analysis of the 
> consequences on the current WT code yet ;-) ).

Well, my knowledge of the protocol is somewhat limited. I only know what
the tunnel server does, and the tunnel server will drop abovementioned frame,
so there is no point in sending it there in the first place.

Youre wrong on the _must_ - only ADDQSOs (actually, any protocol elements)
with Destination Station to "" will be broadcast, whereas abovementioned
ADDQSO is a directed frame, that will not be broadcast but only forwarded
to the destination, unless - as in the case above - the destination would
be on the same tunnel the frame was received from.

I am not sure but I thought back then when the current "learning" server was introduced,
you mentioned also the tunnel client would do the same, but as I said - I could
be mistaken.

Regards,

Mario

-- 
Mario Lorenz                            Internet:    <ml at vdazone.org>
                                        Ham Radio:   DL5MLO at DB0ERF.#THR.DEU.EU
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