Hello,
The steps are following:
1. Set eth0 as LAN and DHCP client. The situation should occur for most of the ip addresses in the pool. Just make sure anding last mask octet with first ip address octet gives different result than last ip address octet. In other words use mask such as 255.255.255.240.
2. Reboot
3. After reboot the device is not accessible by Ethernet
4. If you login using serial port you can verify using ‘route -n’ that the eth0 routing is wrong. You can also see ‘RTNETLINK answers: No such process’ in logs
Also if you confirm this, the same code is in /etc/init.d/lanup
Best regards,
Mariusz