Network interface doesnt update

Question

Why do I cant update my gateway ip? I have rebooted many times and nothing...

I have this configuration /etc/network/interfaces

# The loopback network interface
auto lo eth0
iface lo inet loopback

# The primary network interface
iface eth0 inet static
    address 192.168.1.100
    netmask 255.255.255.0
    broadcast 192.168.1.255
    network 192.168.1.0
    gateway 192.168.1.254
dns-nameservers 192.168.1.254

Have this route

pi@raspberrypi ~ $ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0

Routing table should update to 192.168.1.254, right?

---

Solution:

I had an ip configuration on cmdline.txt (located on boot folder), i just had to remove it and everything started to work good. The reason i still had that configuration was because i forgot to remove it, i dont have any SD card reader, so i had to add some ip on boot load.

Sry and thanks everyone :)

Answer 1

Change auto lo eth0 to auto eth0 on the second line of interfaces file.

EDIT: Well then. I think you have to do it manually.

Type these in exact order (based on your configs)

route del default ---> Just ignore if it says any errors and stuff. Then,

route add default gw 192.168.1.254 dev eth0

Anyways, before trying it, try this interface file first. Replace the old one.

# The loopback network interface
auto eth0
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet static
  address 192.168.1.100
  netmask 255.255.255.0
  gateway 192.168.1.254
dns-nameservers 192.168.1.254

REBOOT AFTER YOU ARE DONE. RESTARTING NETWORKING DOES NOT ALWAYS CUT IT!