I'll try without the switch using a crossover cable to link the board and the host running wireshark directly and let you know.
On Tue, Nov 6, 2018 at 10:19 AM Paul Nader paul.nader@gmail.com wrote:
On Tue, Nov 6, 2018 at 9:45 AM Chris Packham judge.packham@gmail.com wrote:
On Tue, 6 Nov 2018, 6:09 AM Paul Nader <paul.nader@gmail.com wrote:
Hi,
I'm trying to get an olinuxino-a64 board to boot using bootp but it failed to send any DHCP packets so I reduced the problem to trying to get it to ping another host but that fails as well.
I tried it both with 2018.09 and then the head of master given there were some recent commits to the net area to fix handling asynchronous responses.
I'm testing this by having the board ethernet connected to a switch and another port of the switch to a host running wireshark snooping packets in promiscuous mode.
Could the switch be dropping the packets? Are the ports in the same vlan? Is your monitoring host the same host you're trying to ping? (if not you'll need to configure your switch for mirroring)
The switch is a unmanaged TP-Link SG105 https://www.tp-link.com/uk/products/details/cat-42_TL-SG105.html which as far as I can tell has no configuration.
The host I am pinging is the same host that is running wireshark.
In: serial Out: serial Err: serial Net: phy interface7 eth0: ethernet@1c30000 starting USB... No controllers found Hit any key to stop autoboot: 0 => setenv ipaddr 192.168.0.2 => log level 10 => setenv netmask 255.255.255.0
What do you end up with for a mac address? I'm not familiar with the olinuxino hardware does it have an eeprom for the mac or does it just come from the environment.
I tried overwriting the mac address using setenv but it wouldn't allow it so I think it is coming from an eeprom. I didn't set it up in the u-boot environment.
Also, just to reiterate, this all works fine once the kernel has booted. I can configure the interface within linux and ping the host without any problems.