Sigo sen internet

Isto é o que me aparece ao empregar o networking stop e start

root@xose:/home/xosemarcote# /etc/init.d/networking stop
 * Deconfiguring network interfaces...                                           * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...done.
There is already a pid file /var/run/dhclient.eth0.pid with pid 3869
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth0/00:0d:88:31:fc:86
Sending on   LPF/eth0/00:0d:88:31:fc:86
Sending on   Socket/fallback
DHCPRELEASE on eth0 to 192.168.0.1 port 67
 * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...fail!
run-parts: /etc/network/if-down.d/50firestarter exited with return code 2
There is already a pid file /var/run/dhclient.eth1.pid with pid 2698
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:13:8f:30:05:a7
Sending on   LPF/eth1/00:13:8f:30:05:a7
Sending on   Socket/fallback
DHCPRELEASE on eth1 to 192.168.0.1 port 67
send_packet: Network is unreachable
send_packet: please consult README file regarding broadcast address.
                                                                         [ ok ]

root@xose:/home/xosemarcote# /etc/init.d/networking start
 * Configuring network interfaces...                                     [ ok ]
root@xose:/home/xosemarcote# /etc/init.d/networking stop
 * Deconfiguring network interfaces...                                           * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...done.
There is already a pid file /var/run/dhclient.eth0.pid with pid 3869
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth0/00:0d:88:31:fc:86
Sending on   LPF/eth0/00:0d:88:31:fc:86
Sending on   Socket/fallback
DHCPRELEASE on eth0 to 192.168.0.1 port 67
 * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...fail!
run-parts: /etc/network/if-down.d/50firestarter exited with return code 2
There is already a pid file /var/run/dhclient.eth1.pid with pid 2698
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:13:8f:30:05:a7
Sending on   LPF/eth1/00:13:8f:30:05:a7
Sending on   Socket/fallback
DHCPRELEASE on eth1 to 192.168.0.1 port 67
send_packet: Network is unreachable
send_packet: please consult README file regarding broadcast address.
                                                                         [ ok ]
root@xose:/home/xosemarcote# /etc/init.d/networking start
 * Configuring network interfaces...                                            Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth0/00:0d:88:31:fc:86
Sending on   LPF/eth0/00:0d:88:31:fc:86
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPOFFER from 192.168.0.1
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.4 -- renewal in 28 seconds.
 * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...done.
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:13:8f:30:05:a7
Sending on   LPF/eth1/00:13:8f:30:05:a7
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 20
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
 * Stopping the Firestarter firewall...
   ...done.
 * Starting the Firestarter firewall...
   ...done.
                                                                         [ ok ]

Tamén mirei que o D-Link DLS-504T da
problemas pero engadindo unha liña "alias net-pf-10 off" en
/etc/modprobe.conf se solucionaba. Tampouco solucionou o problema. Probei con alias
net-pf-10 off ipv6, porque non tiña moi claro se era dunha forma ou
doutra e tampouco me foi.En que me esto a trabucar?