[U-Boot] Uboot-Mini2440 Not recognizing ARP replies
Hi I am using a Mini2440 Board and using Uboot-1.3.2 on it. I am connecting it to a my Host Machine which has Ubuntu 11.04 on it. After downloading the Uboot image on the board, through USB, I am able to boot up and set the environment variables like ipaddr,serverip, netmask and ethaddr, to connect to my host machine. Settings on mini2440 are - setenv ipaddr 192.168.1.2 setenv serverip 192.168.1.4 setenv netmask 192.168.1.255 saveenv The address of eth0 on my Ubuntu machine is 192.168.1.4. The host and mini2440 are connected directly though a network cable. The serial and USB interface of mini2440 are also connected to the same host. Now after setting the environment variables I try to do a TFTP from my mini2440, then I see ARP requests being sent out, which are received by the host and replied back( This I monitor using Wireshark) . But I dont see any message being received back on Mini2440. I have enabled network level debug prints and I am not able to see any packet receive print. I dont think its a Physical layer issue as the ARP packets are transferred correctly. I am missing out some configuration or some flag/switch during my build. Regards Thanks. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] uboot not responding to ping to ubuntu
Hi All, I am facing a very strange problem. I have a MINI2440 SBC which I am connecting to my laptop with Ubuntu11.04. I have downloaded the Uboot configured for mini2440 and its version is 1.3.2. I have successfully transferred the Uboot code on the SBC. But when I am trying to do a TFTP from the SBC to my laptop its failing. I have enabled debug prints in Uboot and am monitoring packets received on Wireshark on my laptop. I see that uboot sends ARP requests and the Host replies back, but these are not acknowledged by the Uboot on SBC. Eventually it timeouts. Ping also fails. Then I connected my SBC to windows Xp based Host machine and in this case when Uboot sent out ARP requests these were received and acknowledged by Uboot and accordingly a ping was successful. My ubuntu based laptop was also able to ping to my windows machine and viceversa. The wireshark dumps for ARP replies from both Ubuntu and Windows to the Uboot looked the same with the source MAC address being different. So I am missing some configuration on my Ubuntu11.04 or what else could be the problem. Thanks Regards. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
