[hpsdr] Programming fixed IP address in Hermes

[kb3omm]

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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