I actually thought, it were a problem with g_ether and spent hours trying 
to fix that. However as I used Robert Nelsons patches, everything was fine 
there. I'll try the updated kernel.

On Monday, December 7, 2015 at 3:36:23 PM UTC+1, William Hermans wrote:
>
> Have you loaded the g_ether kernel module on the beaglebone ? When 
> building your own kernel, this is something you have to take care of 
> yourself . 
>
> On Mon, Dec 7, 2015 at 7:21 AM, Fabian Dalbert <[email protected] 
> <javascript:>> wrote:
>
>> Hi
>>
>> I'm trying to write a module for a real-time kernel. Following the 
>> instructions on https://eewiki.net/display/linuxonarm/BeagleBone+Black, 
>> I compiled and deployed a 4.1.13-bone-rt-r17 kernel to an sd card with a 
>> Debian GNU/Linux 7 BeagleBoard.org Debian Image 2015-03-01.
>>
>> Before, with kernel 3.8.13-bone70, everything was working perfectly fine. 
>> However after upgrading the kernel, my desktop (running Linux Mint) no 
>> longer receives an ip address.
>>
>> ifconfig beaglebone:
>>
>> usb0      Link encap:Ethernet  HWaddr a2:29:c5:ee:bf:e6  
>>>           inet addr:192.168.7.2  Bcast:192.168.7.3  Mask:255.255.255.252
>>>           inet6 addr: fe80::a029:c5ff:feee:bfe6/64 Scope:Link
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>           RX packets:1 errors:0 dropped:0 overruns:0 frame:0
>>>           TX packets:37 errors:0 dropped:0 overruns:0 carrier:0
>>>           collisions:0 txqueuelen:1000 
>>>           RX bytes:76 (76.0 B)  TX bytes:9408 (9.1 KiB)
>>>
>>
>> ifconfig desktop:
>>
>>  eth1      Link encap:Ethernet  HWaddr 84:eb:18:ae:cb:aa  
>>>           inet6 addr: fe80::86eb:18ff:feae:cbaa/64 Scope:Link
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>           RX packets:37 errors:0 dropped:0 overruns:0 frame:0
>>>           TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
>>>           collisions:0 txqueuelen:1000 
>>>           RX bytes:7262 (7.2 KB)  TX bytes:268 (268.0 B)
>>>
>>
>> manually assigning an ip does not do the trick. When pinging the desktop 
>> from the beaglebone (with or without manually assigning an ip), i can catch 
>> the requests using tcpdump. The beaglebone does however not receive 
>> anything, no answers to pings, nothing showing up in tcpdump.
>>
>> fdalbert@edge ~ $ sudo tcpdump -i eth1
>>> tcpdump: WARNING: eth1: no IPv4 address assigned
>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
>>> decode
>>> listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
>>> 15:01:10.597986 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:11.588800 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:12.588895 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:13.597976 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:14.588800 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:15.588772 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:16.597983 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:17.588936 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> 15:01:18.588919 ARP, Request who-has 192.168.7.1 tell 192.168.7.2, 
>>> length 28
>>> ^C
>>> 9 packets captured
>>> 9 packets received by filter
>>> 0 packets dropped by kernel
>>>
>>
>>  root@beaglebone:~# ping 192.168.7.1
>>> PING 192.168.7.1 (192.168.7.1) 56(84) bytes of data.
>>> From 192.168.7.2 icmp_seq=1 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=2 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=3 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=4 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=5 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=6 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=7 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=8 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=9 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=10 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=11 Destination Host Unreachable
>>> From 192.168.7.2 icmp_seq=12 Destination Host Unreachable
>>> ^C
>>> --- 192.168.7.1 ping statistics ---
>>> 14 packets transmitted, 0 received, +12 errors, 100% packet loss, time 
>>> 13001ms
>>> pipe 3
>>> root@beaglebone:~# tcpdump -i usb0
>>> tcpdump: verbose output suppressed, use -v or -vv for full protocol 
>>> decode
>>> listening on usb0, link-type EN10MB (Ethernet), capture size 65535 bytes
>>> ^C
>>> 0 packets captured
>>> 0 packets received by filter
>>> 0 packets dropped by kernel
>>>
>>
>> I already spent hours trying to figure out the problem here, any help is 
>> greatly appreciated! 
>>
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>
>

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