I dont' understand... :-(

[Soles <claudia_sol_es yahoo es>]

Hello ...

First thing: I wrote in Spanish and translated by St. Google ... ;-)
because they do not speak English. 

Then: I need help to understand this log you copied:


NetworkManager: <info>  (eth0): carrier now ON (device state 2)

NetworkManager: <info>  (eth0): device state change: 2 -> 3 (reason 40)

NetworkManager: <info>  Activation (eth0) starting connection 'Auto
 eth0' 

NetworkManager: <info>  (eth0): device state change: 3 -> 4
 (reason 0) 

NetworkManager: <info>  Activation (eth0) Stage 1 of 5
 (Device Prepare) scheduled... 

NetworkManager: <info>  Activation
 (eth0) Stage 1 of 5 (Device Prepare) started... 

NetworkManager:
 <info>  Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...

NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device
 Prepare) complete. 

NetworkManager: <info>  Activation (eth0) Stage 2
 of 5 (Device Configure) starting... 

NetworkManager: <info>  (eth0): device state change: 4 -> 5 (reason 0) 

NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device
Configure) successful. 
NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure
 Start) scheduled. 

NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device
Configure) complete. 

NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure
Start) started... 

NetworkManager:  <info>  (eth0): device state change: 5 -> 7 (reason 0) 

NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP4 Configure
Get) scheduled... 

NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP6 Configure
Get) scheduled... 

NetworkManager: <info>  Activation  (eth0) Stage 3 of 5 (IP Configure
Start) complete. 

NetworkManager:  <info>  Activation (eth0) Stage 4 of 5 (IP4 Configure
Get) started...

NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP4 Configure
Get) complete. 

NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP6 Configure
Get) started... 

NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure
Commit) scheduled... 

NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP6 Configure
Get) complete.

NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure
Commit) started... 

avahi-daemon[982]: Joining mDNS multicast group on interface eth0.IPv4
with address 192.168.1.2. 

avahi-daemon[982]: New relevant interface eth0.IPv4 for mDNS. 

avahi-daemon[982]: Registering new address record for 192.168.1.2 on
eth0.IPv4. 

NetworkManager:  <info>  (eth0): device state change: 7 -> 8 (reason 0) 

NetworkManager: <info>  Policy set 'Auto eth0' (eth0) as default for
routing and DNS. 
NetworkManager: <info>  Activation (eth0) successful, device activated. 

NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure
Commit) complete. 

avahi-daemon[982]: Registering new address record for
fe80::226:5aff:fe6c:8f5f on eth0.*. 

ntpdate[3307]: adjust time server 91.189.94.4 offset -0.046500 sec 

AptDaemon: INFO: Quiting due to inactivity AptDaemon: INFO: Shutdown
was requested 
NetworkManager: <info>  (eth0): carrier now OFF (device state 8,
deferring action for 4 seconds) 

NetworkManager: <info>  (eth0):  carrier now ON (device state 8) 

NetworkManager: <info>  (eth0):  carrier now OFF (device state 8,
deferring action for 4 seconds)

NetworkManager: <info>  (eth0): carrier now ON (device state 8)

NetworkManager: <info>  (eth0): carrier now OFF (device state 8,
deferring action for 4 seconds) 

NetworkManager: <info>  (eth0): device state change: 8 -> 2 (reason 40) 

NetworkManager: <info>  (eth0): deactivating device (reason: 40). 

NetworkManager: <WARN> check_one_route(): (eth0) error -34 returned
from rtnl_route_del(): Sucess#012 

avahi-daemon[982]: Withdrawing address record for 192.168.1.2 on eth0. 

avahi-daemon[982]: Leaving mDNS multicast group on interface eth0.IPv4
with address 192.168.1.2. 

avahi-daemon[982]: Interface eth0.IPv4 no longer relevant for mDNS. 

nm-dispatcher.action: Script
'/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status
1.



What strikes me is:

Why does that
avahi-daemon [982]: Registering new address record for 192.168.1.2 on
eth0.IPv4.

Is it that ...?

Then, in:
avahi-daemon [982]: Registering new address record for fe90:: 336:5
bff: fe7c: 8l6l on eth0 .*.

What's that ...?
My MAC ... certainly not.

Somewhat important, not interpret.
  NetworkManager: <warn> check_one_route (): (eth0) error -34 Return
from rtnl_route_del (): Sucesso # 012

What do I have to do with it ...?

And with this ...?
nm-dispatcher.action: Script '/
etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1.

Thanks to whoever is willing and able to help.

Claudia