Adresse ip inconnue

bonjour
sous ubuntu avec un DELL OPTIPLEX GX260
je cherche une explication
la premiere destination est mon rooteur
mais la deuxieme( je nesait pas à quoi cela corespond )
voila j'ai pensée à ma carte reseau mais je suis debutant et plein de chose m'echappe


franck@planteur:~$ /sbin/route -n
Table de routage IP du noyau
Destination Passerelle Genmask Indic Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
franck@planteur:~$

avec la commande suivante HD

franck@planteur:~$ sudo dmesg | grep hd[a-z]
Password:
[ 24.803771] SCSI device sda: 39102336 512-byte hdwr sectors (20020 MB)
[ 24.812299] SCSI device sda: 39102336 512-byte hdwr sectors (20020 MB)
[ 31.057168] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 31.061166] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)

[ 46.963972] e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex


et avec SD à la place de hd il ne semble plus apparaitre

franck@planteur:~$ sudo dmesg | grep sd[a-z]
[ 24.803771] SCSI device sda: 39102336 512-byte hdwr sectors (20020 MB)
[ 24.804316] sda: Write Protect is off
[ 24.804320] sda: Mode Sense: 00 3a 00 00
[ 24.808347] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 24.812299] SCSI device sda: 39102336 512-byte hdwr sectors (20020 MB)
[ 24.815732] sda: Write Protect is off
[ 24.815735] sda: Mode Sense: 00 3a 00 00
[ 24.819733] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 24.819738] sda: sda1 sda2 sda3 < sda5 >
[ 24.874170] sd 0:0:0:0: Attached scsi disk sda
[ 31.057168] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 31.058240] sdb: Write Protect is off
[ 31.058244] sdb: Mode Sense: 17 00 00 00
[ 31.058246] sdb: assuming drive cache: write through
[ 31.061166] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 31.062232] sdb: Write Protect is off
[ 31.062235] sdb: Mode Sense: 17 00 00 00
[ 31.062238] sdb: assuming drive cache: write through
[ 31.062241] sdb: sdb1 sdb2 sdb3 sdb4
[ 31.069283] sd 2:0:0:0: Attached scsi disk sdb
[ 31.076158] sd 3:0:0:0: Attached scsi removable disk sdc
[ 52.124851] EXT3 FS on sda2, internal journal
[ 86.056401] EXT3 FS on sdb2, internal journal
[ 86.252639] NTFS-fs warning (device sdb3): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel.
[ 86.665732] NTFS-fs warning (device sdb1): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel.
[ 86.820930] EXT3 FS on sdb4, internal journal
franck@planteur:~$