Moved UmTRX on to 192.168.11.10 and get no ARP reply. I'm probably being dumb! Just wanted to make sure there is no issue with subnet mask etc.
Regards Craig
Craig,
On Mon, Mar 18, 2013 at 10:33 PM, Craig Reading craig.reading1@gmail.com wrote:
Moved UmTRX on to 192.168.11.10 and get no ARP reply. I'm probably being dumb! Just wanted to make sure there is no issue with subnet mask etc.
Have you changed subnet mask or IP address only?
Changing IP addresses on UmTRX works fine here. E.g. for the network at CCC we ran all UmTRX's at 192.168.51.xx subnetwork. I've never tried to change mask, though.
If you want to debug - here is the code which controls networking in ZPU in UmTRX: https://github.com/fairwaves/UHD-Fairwaves/blob/fairwaves/umtrx/firmware/zpu...
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
Hi Alexander,
I only changed the IP since I do not think changing the mask using the following commands is supported:
./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=*subnet * --val=255.255.255.0 ./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=*gateway * --val=xxx.xxx.xxx.xxx
I'm doing some more tracing soon.
Regards Craig
On 19 March 2013 12:47, Alexander Chemeris alexander.chemeris@gmail.comwrote:
Craig,
On Mon, Mar 18, 2013 at 10:33 PM, Craig Reading craig.reading1@gmail.com wrote:
Moved UmTRX on to 192.168.11.10 and get no ARP reply. I'm probably being
dumb! Just wanted to make sure there is no issue with subnet mask etc.
Have you changed subnet mask or IP address only?
Changing IP addresses on UmTRX works fine here. E.g. for the network at CCC we ran all UmTRX's at 192.168.51.xx subnetwork. I've never tried to change mask, though.
If you want to debug - here is the code which controls networking in ZPU in UmTRX:
https://github.com/fairwaves/UHD-Fairwaves/blob/fairwaves/umtrx/firmware/zpu...
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
Yes, subnet and gateway EEPROM settings were introduced in UHD mainline after we forked our version of UHD. We didn't bother merging those changes as we never needed them.
On Tue, Mar 19, 2013 at 6:39 PM, Craig Reading craig.reading1@gmail.com wrote:
Hi Alexander,
I only changed the IP since I do not think changing the mask using the following commands is supported:
./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=subnet --val=255.255.255.0 ./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=gateway --val=xxx.xxx.xxx.xxx
I'm doing some more tracing soon.
Regards Craig
On 19 March 2013 12:47, Alexander Chemeris alexander.chemeris@gmail.com wrote:
Craig,
On Mon, Mar 18, 2013 at 10:33 PM, Craig Reading craig.reading1@gmail.com wrote:
Moved UmTRX on to 192.168.11.10 and get no ARP reply. I'm probably being dumb! Just wanted to make sure there is no issue with subnet mask etc.
Have you changed subnet mask or IP address only?
Changing IP addresses on UmTRX works fine here. E.g. for the network at CCC we ran all UmTRX's at 192.168.51.xx subnetwork. I've never tried to change mask, though.
If you want to debug - here is the code which controls networking in ZPU in UmTRX:
https://github.com/fairwaves/UHD-Fairwaves/blob/fairwaves/umtrx/firmware/zpu...
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
All,
I am 99% certain this is a problem with the USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter I added to my OpenBTS server to solve another issue. Having looked through the source code and compared good and bad wireshark traces I can find no difference or bug in the ARP handling.
Hence, time to move on and build up a new dedicated server for OpenBTS based on Ubuntu 12.04.
Regards Craig
On 19 March 2013 14:44, Alexander Chemeris alexander.chemeris@gmail.comwrote:
Yes, subnet and gateway EEPROM settings were introduced in UHD mainline after we forked our version of UHD. We didn't bother merging those changes as we never needed them.
On Tue, Mar 19, 2013 at 6:39 PM, Craig Reading craig.reading1@gmail.com wrote:
Hi Alexander,
I only changed the IP since I do not think changing the mask using the following commands is supported:
./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=subnet --val=255.255.255.0 ./usrp_burn_mb_eeprom --args="addr=xxx.xxx.xxx.xxx" --key=gateway --val=xxx.xxx.xxx.xxx
I'm doing some more tracing soon.
Regards Craig
On 19 March 2013 12:47, Alexander Chemeris <alexander.chemeris@gmail.com
wrote:
Craig,
On Mon, Mar 18, 2013 at 10:33 PM, Craig Reading craig.reading1@gmail.com wrote:
Moved UmTRX on to 192.168.11.10 and get no ARP reply. I'm probably
being
dumb! Just wanted to make sure there is no issue with subnet mask etc.
Have you changed subnet mask or IP address only?
Changing IP addresses on UmTRX works fine here. E.g. for the network at CCC we ran all UmTRX's at 192.168.51.xx subnetwork. I've never tried to change mask, though.
If you want to debug - here is the code which controls networking in ZPU in UmTRX:
https://github.com/fairwaves/UHD-Fairwaves/blob/fairwaves/umtrx/firmware/zpu...
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
On Tue, Mar 19, 2013 at 9:36 PM, Craig Reading craig.reading1@gmail.com wrote:
All,
I am 99% certain this is a problem with the USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter I added to my OpenBTS server to solve another issue. Having looked through the source code and compared good and bad wireshark traces I can find no difference or bug in the ARP handling.
Hence, time to move on and build up a new dedicated server for OpenBTS based on Ubuntu 12.04.
Good idea! We use Ubuntu 12.04 and 12.10 for development, and it works well. For a motherboard we have good experience with Intel DN2800MT and we're going to test D2500CC (it has 2x1GbE).
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
You can only stand pissing into the wind for so long! Nice fun investigating things we take for granted like ARP but more important things to do.
I'll let you know when everything is built and I can do some more testing. A have a range of gigabit NICs to try in this new server.
As I said earlier in the thread this is not a UmTRX issue thankfully.
Regards Craig
On 19 Mar 2013, at 19:24, Alexander Chemeris alexander.chemeris@gmail.com wrote:
On Tue, Mar 19, 2013 at 9:36 PM, Craig Reading craig.reading1@gmail.com wrote:
All,
I am 99% certain this is a problem with the USB 2.0 to 10/100/1000 Gigabit Ethernet LAN Wired Network Adapter I added to my OpenBTS server to solve another issue. Having looked through the source code and compared good and bad wireshark traces I can find no difference or bug in the ARP handling.
Hence, time to move on and build up a new dedicated server for OpenBTS based on Ubuntu 12.04.
Good idea! We use Ubuntu 12.04 and 12.10 for development, and it works well. For a motherboard we have good experience with Intel DN2800MT and we're going to test D2500CC (it has 2x1GbE).
-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru
-
Alexander Chemeris -
Craig Reading