[aprssig] Help explaining packets

[AE5PL Lists]

> -----Original Message-----
> From: Andre PE1RDW
> Posted At: Tuesday, May 10, 2005 4:17 PM
> Subject: Re: [aprssig] Help explaining packets
> 
> >W2KB>APU25N,KB2EAR-1*,WIDE3-2:}W0SNJ>APX150,TCPIP,W2KB*::W2ME
R  :PING1,PING1, PING1{09}
> >W2KB>APU25N,KB2EAR-1,N3XKU-15*,WIDE3-1:}W0SNJ>APX150,TCPIP,W2
KB*::W2MER    :PING1, PING1, PING1{09}
> >
> this seems very odd to me, on closer examination of these 
> packets it seems W2KB is putting the franes into APRS-IS (his 
> call is after TCPIP) and then gates it back to rf.
> This is not normal behavior of any igate including ui-view.

No, this is the proper formatting for a gated packet.  Refer to the
third-party packet specification for more information.  You have the
AX.25 header (W2KB>APU25N,WIDE3-3) and the third-party header
(W0SNJ>APX150,TCPIP,W2KB*).  The third-party header indicates that the
packet came from APRS-IS (TCPIP) and was gated to RF by W2KB.  This is
all correct.

73,

Pete Loveall AE5PL
mailto:pete at ae5pl.net