Static IP address configure , change to dynamic after 1 month

FelipeDante · 02-12-2017, 02:44 PM

i have a question for the erudits.
i have a debian wheezy server with static ip setting. after 1 month of normal behaviour, one day, in one moment to other, the setting change to dynamic IP address randomly.
the syslog show me this:
Feb 9 06:49:46 maquina dhclient: DHCPREQUEST on eth0 to 192.168.0.1 port 67
Feb 9 06:49:46 maquina dhclient: DHCPACK from 192.168.0.1
Feb 9 06:49:46 maquina dhclient: bound to 192.168.0.215 -- renewal in 3239 seconds.

¿any way to solve this?

/etc/network/interfaces is:

auto lo eth0
iface lo inet loopback
iface eth0 inet static
address 192.168.0.101
netmask 255.255.255.0
gateway 192.168.0.1
dns-nameservers 192.168.0.1

resuni · 02-12-2017, 06:25 PM

From what you posted, I don't know why it would be doing that. Did you run any network-related commands before it did that? Such as ifup or restarting the networking service?

Here's my interfaces file, which has been working for months since it's installation. In case it helps you:

Code:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth1
iface eth1 inet static
	address 192.168.1.103
	netmask 255.255.255.0
	network 192.168.1.0
	broadcast 192.168.1.255
	gateway 192.168.1.1
	# dns-* options are implemented by the resolvconf package, if installed
	dns-nameservers 8.8.8.8 8.8.4.4

For the most part, it's the same as yours. One thing I notice that's different is you have "eth0" in your auto line. I also have "allow-hotplug" on my interface. However, these things alone shouldn't cause you to revert back to DHCP without warning.

ferrari · 02-12-2017, 09:35 PM

You mention that it worked for about a month before this behaviour started - is there a chance that it occurred after a reboot?

Following your initial static configuration, did you ifdown/ifup eth0?

http://askubuntu.com/questions/45914...oose-static-ip

FelipeDante · 02-12-2017, 10:09 PM

Quote:

Originally Posted by ferrari

You mention that it worked for about a month before this behaviour started - is there a chance that it occurred after a reboot?

Following your initial static configuration, did you ifdown/ifup eth0?

http://askubuntu.com/questions/45914...oose-static-ip

I don't reboot yet, but when a set up '/etc/network/interfaces' i do reboot, then after 1 month happen the above behaviour.

i don't do ifdown-/ifup , but in many cases i do ' /etc/init.d/networking reload' and then 'restart' , but always 'reload' first. In general cases. I reboot de system when I do changes setting in the system.

thank's for reply, apologies for my English..

FelipeDante · 02-12-2017, 10:10 PM

Quote:

Originally Posted by Bradj47

From what you posted, I don't know why it would be doing that. Did you run any network-related commands before it did that? Such as ifup or restarting the networking service?

Here's my interfaces file, which has been working for months since it's installation. In case it helps you:

Code:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth1
iface eth1 inet static
	address 192.168.1.103
	netmask 255.255.255.0
	network 192.168.1.0
	broadcast 192.168.1.255
	gateway 192.168.1.1
	# dns-* options are implemented by the resolvconf package, if installed
	dns-nameservers 8.8.8.8 8.8.4.4

For the most part, it's the same as yours. One thing I notice that's different is you have "eth0" in your auto line. I also have "allow-hotplug" on my interface. However, these things alone shouldn't cause you to revert back to DHCP without warning.

i'm testing now...

thank's for reply, apologies for my poor English.. :-)