Marbolan, j'ai deux fichier ifcfg,
Voilà ifcfg-lo
DEVICE=lo
IPADDR=127.0.0.1
NETMASK=255.0.0.0
NETWORK=127.0.0.0
# If you're having problems with gated making 127.0.0.0/8 a martian,
# you can change this to something else (255.255.255.255, for example)
BROADCAST=127.255.255.255
ONBOOT=yes
NAME=loopback
et ça c'est ifcfg-profil 1
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=no
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=Profil 1
UUID=d748deb8-1346-4890-b750-a389b29d84e8
ONBOOT=yes
HWADDR=04:7D:7B:09:4F:5B
PEERDNS=yes
PEERROUTES=yes
DHCPV6C=yes