[hpsdr] Programming fixed IP address in Hermes

[Gregory Ratcliff]

Ah, yes makes sense.  I have a shack switch that is separate from the house switch.  I haven't looked to see if all the UDP traffic is going everywhere.  So far nobody has complained, you can't break the kids Netflix downloads you know.

Greg

Sent from my iPad

On Nov 24, 2012, at 10:41 AM, kb3omm <kb3omm at gmail.com> wrote:

> Greg, 
> 255.255.255.255 (0.0.0.0) is the default programming of Hermes as configured by TAPR. 
> 
> I suppose running the Hermes on the shack network and getting an IP assigned via the router's DHCP will work, but the sheer amount of traffic (70 Mbytes?) can overload a shared 100MB network. To prevent this I prefer to run a dedicated NIC direct to Hermes, and keep the traffic isolated. 
> 
> With no DHPC server, both the PC's NIC and Hermes will ultimately revert to a self assignes APIPA address in the 169.254.x.x range.
> 
> 73, Kevin kb30mm
> 
> 
> On Sat, Nov 24, 2012 at 10:06 AM, Gregory Ratcliff <nz8r at att.net> wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>> 
>> Seems like three or four of us have set their hermes to 255.255.255.255.   Why is this address chosen?  I'm happy with mine assigned one with dhcp, which is fixed in router setup to always assign 192.168.1.22, based on its MAC.
>> 
>> Comments?
>> 
>> Greg
>> Nz8r
>> 
>> Sent from my iPad
>> 
>> On Nov 24, 2012, at 9:34 AM, John Sager <john at sager.me.uk> wrote:
>> 
>> > ***** High Performance Software Defined Radio Discussion List *****
>> >
>> > Mine works OK, at least to the extent of being able to read both the
>> > IP address (255.255.255.255 on mine) and the MAC address. I haven't
>> > tried changing them as I don't want to at the moment.
>> >
>> > With J12 in place, Hermes doesn't recognise IP packets so discovery
>> > won't work. A Wireshark capture of the transactions with J12 in place
>> > shows Hermes receives raw Ethernet frames to the multicast address
>> > 11:22:33:44:55:66 and responds with a reply from the same address.
>> >
>> > Note that you do have to run HPSDRProgrammer with Administrator
>> > privileges on Windows, or with root privileges on Linux so that
>> > the application can write and receive raw Ethernet frames.
>> >
>> > 73 John G8ONH
>> >
>> > On 24/11/12 12:37, H.A.Meijer wrote:
>> >> ***** High Performance Software Defined Radio Discussion List *****
>> >>
>> >>
>> >>
>> >> Hi,
>> >>
>> >> I made the same observation with my Hermes board, it did not want to switch
>> >> to the boot loader mode with J12.
>> >> To solve this I had to program the boot loader software to the eeprom with a
>> >> usb-blaster programmer using  quartus II.
>> >> It seems that someone forgot to program the bootloader to the eeprom at
>> >> production.
>> >>
>> >> Bert PA2XHF
>> >>
>> >>
>> >> Op 24-11-2012 4:04, kb3omm schreef:
>> >>> ***** High Performance Software Defined Radio Discussion List *****
>> >>>
>> >>>
>> >>>
>> >>> Attempting to program a fixed IP address into Hermes. Following
>> >>> instructions in Appendix A of Hermes Users Manual v1.9. but programmer
>> >>> does not discover Hermes.
>> >>>
>> >>> Using PC with two NICs and a straight Ethernet cable to interconnect.
>> >>>
>> >>> PowerSDR and cuSDR discover and work fine.
>> >>>
>> >>> Tried once with J12 off, and Programmer did discover, but could not do
>> >>> anything of course, as Hermes not in boot loader mode.
>> >>>
>> >>> Is it possible that the Ethernet cable needs to be a crossover for the
>> >>> boot loader mode to work?
>> >>>
>> >>> 73, Kevin kb3omm
>> >>>
>> >>>
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