[hpsdr] Hermes/Angelia and Ethernet problems

[Scott Traurig]

That's not it. On road today. More comprehensive answer tonight.

73,

Scott


On September 28, 2016 7:30:04 AM EDT, Bryan Rambo <bryanr at bometals.com> wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
>
>
>------------------------------------------------------------------------
>
>Hi Mike,
> 
>Scott should jump in here with this one.  But I wonder if this has
>something to do with the "illegal Angelia MAC address" issue, reported
>here previously, that causes problems with managed switches that will
>reject such a MAC.  Apparently, cheaper less sophisticated, unmanaged
>switches will blissfully pass the illegal MAC and everything works fine
>again.
> 
>Same thing Scott?
> 
>73, Bryan W4WMT
>
>  _____  
>
>From: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of
>Mike Tubby
>Sent: Saturday, September 17, 2016 3:36 PM
>To: hpsdr at openhpsdr.org
>Subject: [hpsdr] Hermes/Angelia and Ethernet problems
>
>
>I have an Angelia board that I purchased from Anan about 18 months ago
>which I use as an SDR in my home 2m DX station on a 28MHz transverter
>IF and also use in the field with our contest group.
>
>Currently I use the Angelia primarily on RX with CuSDR as I like the UI
>design and display.
>
>The problem that I have with the Angelia is that it appears to be very
>'touchy' (unreliable) with its Ethernet connection, obtaining a DHCP
>lease and talking to my PC.
>
>In my setup I have:
>
>�������� 1. my workstation PC - Dell T3610, 16Gb, 6-core Xeon, etc.
>with Gigabit Ethernet
>�������� 2. my Linux server which is my default gateway and DHCP server
>�������� 3. my Angelia board
>�������� 4. Ethernet switch
>�������� 5. Various other devices (computers, VoIP phones, etc)
>
>If I connect everything in the shack via an old Netgear FS116 unmanaged
>10/100Mbps switch then everything works fine - the Angelia performs
>Ethernet link negotiation and comes up, sends DHCP request, gets reply,
>sets up IP address, etc. after which running up CuSDR on the PC works
>when I hit 'Start' it performs auto-detect, finds the Angelia and comes
>up...
>
>However this network set-up isn't practical for a range of reasons...��
>I have a rack of servers in the garage and that's also where the
>internet comes in.�� I have have a machine (called "gate") that
>provides network services, firewall, NAT, NTP, DHCP etc. in the garage.
>
>I have my main PC, the wife's PC, network printers, VoIP phones, etc.
>in the study/shack.�� At both ends there's a Netgeat GSM724T 24-port
>switch and a Gigabit fibre trunk runs between the switches.
>
>If I plug the Angelia and my shack PC in to two ports of the switch in
>the shack and watch the DHCP server on gate with "dhcpdump" then I see
>my PC perform DHCP request, get a reply and come up as expected but
>when I turn the Angelia on I see nothing?�� What gives?�� Is the
>Ethernet implementation in Hermes and Angelia 'fragile' or
>incomplete?�� Is there a problem with link partner attributes? or
>timing when talking to managed switches?�� Does Hermes/Angelia assume
>that the link comes up very quickly and transmit DHCP request(s) too
>soon or without retries?
>
>Is there something that can be done about this?
>
>I really want to be able to use the Angelia from one or other of two
>locations in the house on the same local (switched) Ethernet.
>
>I'm happy to spend some time collecting diagnostics/debug if this would
>help.
>
>
>Regards
>
>
>Mike G8TIC
>
>
>
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>
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