static IP but sometimes the BBB use DHCP

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1

Hello,

I set in the /etc/network/interfaces:
auto lo
iface lo inet loopback

auto eth0

iface eth0 inet static
address 192.168.254.1
netmask 255.255.255.0
gateway 192.168.254.254

But with ifconfig I get:
eth0 Link encap:Ethernet HWaddr d0:39:72:2b:c7:5e
inet addr:192.168.254.101 Bcast:192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::d239:72ff:fe2b:c75e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:50257 errors:0 dropped:0 overruns:0 frame:0
TX packets:4695 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3279596 (3.1 MiB) TX bytes:374778 (365.9 KiB)
Interrupt:40

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:628 errors:0 dropped:0 overruns:0 frame:0
TX packets:628 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:37651 (36.7 KiB) TX bytes:37651 (36.7 KiB)

The 101 is from the DHCP.

Has anyone an idea why the BBB use the DHCP somtimes?
Guess when I boot 100times, it happens once

Thank you!

2

I’ve seen the same thing and could never figure it out… so I finally gave up and put a static IP assignment in the router that is handing out the addresses, which works in my application but is a bit of a hassle since I have to program the router with the MAC address of the Beaglebone.

Erik

3

I’ve only seen this happen when using an nfsroot rootfs, and the uboot environment variables for networking are not set properly.

4

Hi William,

maybe you have an example or can tell me what I have to post, to double check my settings?

Thank you!

5

btw: I´m using Debian

6

Hello William,

may you can tell me where I have to check for correct settings?

Thank you!