internet connection via ethernet port

We need some information.

Please attach the output of

$ dmesg

when you have just connected your modem via ethernet port.
And can you tell us which modem you have?

output of dmesg:

[ 0.000000] Linux version 2.6.20-16-generic (root@terranova) (gcc version 4.1.2 (Ubuntu 4.1.2-0ubuntu4)) #2 SMP Tue Dec 18 05:45:12 UTC 2007 (Ubuntu 2.6.20-16.33-generic)
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] sanitize start
[ 0.000000] sanitize end
[ 0.000000] copy_e820_map() start: 0000000000000000 size: 000000000009fc00 end: 000000000009fc00 type: 1
[ 0.000000] copy_e820_map() type is E820_RAM
[ 0.000000] copy_e820_map() start: 000000000009fc00 size: 0000000000000400 end: 00000000000a0000 type: 2
[ 0.000000] copy_e820_map() start: 00000000000e0000 size: 0000000000020000 end: 0000000000100000 type: 2
[ 0.000000] copy_e820_map() start: 0000000000100000 size: 000000001f640000 end: 000000001f740000 type: 1
[ 0.000000] copy_e820_map() type is E820_RAM
[ 0.000000] copy_e820_map() start: 000000001f740000 size: 0000000000010000 end: 000000001f750000 type: 3
[ 0.000000] copy_e820_map() start: 000000001f750000 size: 00000000000b0000 end: 000000001f800000 type: 4
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
[ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000001f740000 (usable)
[ 0.000000] BIOS-e820: 000000001f740000 - 000000001f750000 (ACPI data)
[ 0.000000] BIOS-e820: 000000001f750000 - 000000001f800000 (ACPI NVS)
[ 0.000000] 0MB HIGHMEM available.
[ 0.000000] 503MB LOWMEM available.
[ 0.000000] Entering add_active_range(0, 0, 128832) 0 entries of 256 used
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0 -> 4096
[ 0.000000] Normal 4096 -> 128832
[ 0.000000] HighMem 128832 -> 128832
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0 -> 128832
[ 0.000000] On node 0 totalpages: 128832
[ 0.000000] DMA zone: 32 pages used for memmap
[ 0.000000] DMA zone: 0 pages reserved
[ 0.000000] DMA zone: 4064 pages, LIFO batch:0
[ 0.000000] Normal zone: 974 pages used for memmap
[ 0.000000] Normal zone: 123762 pages, LIFO batch:31
[ 0.000000] HighMem zone: 0 pages used for memmap
[ 0.000000] DMI 2.3 present.
[ 0.000000] ACPI: RSDP (v000 ACPIAM ) @ 0x000f70e0
[ 0.000000] ACPI: RSDT (v001 INTEL D845GLLY 0x20021001 MSFT 0x00000097) @ 0x1f740000
[ 0.000000] ACPI: FADT (v002 INTEL D845GLLY 0x20021001 MSFT 0x00000097) @ 0x1f740200
[ 0.000000] ACPI: MADT (v001 INTEL D845GLLY 0x20021001 MSFT 0x00000097) @ 0x1f740300
[ 0.000000] ACPI: ASF! (v016 AMIASF I845GASF 0x00000001 MSFT 0x0100000d) @ 0x1f744580
[ 0.000000] ACPI: DSDT (v001 INTEL D845GLLY 0x0000010a MSFT 0x0100000d) @ 0x00000000
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[ 0.000000] Processor #0 15:1 APIC version 20
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x81] disabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Enabling APIC mode: Flat. Using 1 I/O APICs
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] Allocating PCI resources starting at 20000000 (gap: 1f800000:e0800000)
[ 0.000000] Detected 1500.034 MHz processor.
[ 13.217225] Built 1 zonelists. Total pages: 127826
[ 13.217233] Kernel command line: root=UUID=7bcb827b-bbde-4453-aae8-8be8fee91f2d ro splash
[ 13.217524] mapped APIC to ffffd000 (fee00000)
[ 13.217529] mapped IOAPIC to ffffc000 (fec00000)
[ 13.217534] Enabling fast FPU save and restore... done.
[ 13.217540] Enabling unmasked SIMD FPU exception support... done.
[ 13.217560] Initializing CPU#0
[ 13.217668] PID hash table entries: 2048 (order: 11, 8192 bytes)
[ 13.219554] Console: colour VGA+ 80x25
[ 13.222766] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 13.223625] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 13.248357] Memory: 499896k/515328k available (1993k kernel code, 14880k reserved, 900k data, 328k init, 0k highmem)
[ 13.248456] virtual kernel memory layout:
[ 13.248457] fixmap : 0xfff4e000 - 0xfffff000 ( 708 kB)
[ 13.248459] pkmap : 0xff800000 - 0xffc00000 (4096 kB)
[ 13.248461] vmalloc : 0xe0000000 - 0xff7fe000 ( 503 MB)
[ 13.248463] lowmem : 0xc0000000 - 0xdf740000 ( 503 MB)
[ 13.248465] .init : 0xc03d9000 - 0xc042b000 ( 328 kB)
[ 13.248467] .data : 0xc02f2429 - 0xc03d36d4 ( 900 kB)
[ 13.248469] .text : 0xc0100000 - 0xc02f2429 (1993 kB)
[ 13.248906] Checking if this processor honours the WP bit even in supervisor mode... Ok.
[ 13.325573] Calibrating delay using timer specific routine.. 3003.32 BogoMIPS (lpj=6006649)
[ 13.325765] Security Framework v1.0.0 initialized
[ 13.325834] SELinux: Disabled at boot.
[ 13.325922] Mount-cache hash table entries: 512
[ 13.326276] CPU: After generic identify, caps: 3febfbff 00000000 00000000 00000000 00000000 00000000 00000000
[ 13.326300] CPU: Trace cache: 12K uops, L1 D cache: 8K
[ 13.326398] CPU: L2 cache: 256K
[ 13.326453] CPU: Hyper-Threading is disabled
[ 13.326510] CPU: After all inits, caps: 3febfbff 00000000 00000000 00003080 00000000 00000000 00000000
[ 13.326534] Compat vDSO mapped to ffffe000.
[ 13.326593] Remapping vsyscall page to ffffe000
[ 13.326670] Checking 'hlt' instruction... OK.
[ 13.341841] SMP alternatives: switching to UP code
[ 13.342375] Freeing SMP alternatives: 11k freed
[ 13.342915] Early unpacking initramfs... done
[ 13.891422] ACPI: Core revision 20060707
[ 13.891831] ACPI: Looking for DSDT in initramfs... file /DSDT.aml not found, using machine DSDT.
[ 13.895763] CPU0: Intel(R) Pentium(R) 4 CPU 1.50GHz stepping 02
[ 13.895960] Total of 1 processors activated (3003.32 BogoMIPS).
[ 13.896174] ENABLING IO-APIC IRQs
[ 13.896451] ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 14.040982] Brought up 1 CPUs
[ 14.041566] Booting paravirtualized kernel on bare hardware
[ 14.041792] Time: 20:17:13 Date: 00/20/108
[ 14.041925] NET: Registered protocol family 16
[ 14.042227] EISA bus registered
[ 14.042294] ACPI: bus type pci registered
[ 14.042516] PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=1
[ 14.042574] PCI: Using configuration type 1
[ 14.042630] Setting up standard PCI resources
[ 14.064450] ACPI: Interpreter enabled
[ 14.064522] ACPI: Using IOAPIC for interrupt routing
[ 14.065445] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 14.065524] PCI: Probing PCI hardware (bus 00)
[ 14.066081] Boot video device is 0000:00:02.0
[ 14.066463] * The chipset may have PM-Timer Bug. Due to workarounds for a bug,
[ 14.066466] * this clock source is slow. If you are sure your timer does not have
[ 14.066468] * this bug, please use "acpi_pm_good" to disable the workaround
[ 14.066728] PCI quirk: region 0400-047f claimed by ICH4 ACPI/GPIO/TCO
[ 14.066790] PCI quirk: region 0480-04bf claimed by ICH4 GPIO
[ 14.067339] PCI: Transparent bridge - 0000:00:1e.0
[ 14.067438] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 14.070410] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
[ 14.072205] ACPI: Power Resource [URP1] (off)
[ 14.073440] ACPI: Power Resource [URP2] (off)
[ 14.074317] ACPI: Power Resource [FDDP] (off)
[ 14.075543] ACPI: Power Resource [LPTP] (off)
[ 14.081704] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12 14 15)
[ 14.082871] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 10 *11 12 14 15)
[ 14.084048] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 *9 10 11 12 14 15)
[ 14.085247] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 7 9 10 11 12 14 15)
[ 14.086407] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
[ 14.087679] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
[ 14.088976] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
[ 14.090286] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
[ 14.091489] Linux Plug and Play Support v0.97 (c) Adam Belay
[ 14.091578] pnp: PnP ACPI init
[ 14.100975] pnp: PnP ACPI: found 14 devices
[ 14.101047] PnPBIOS: Disabled by ACPI PNP
[ 14.101230] PCI: Using ACPI for IRQ routing
[ 14.101289] PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
[ 14.105057] NET: Registered protocol family 8
[ 14.105116] NET: Registered protocol family 20
[ 14.106759] pnp: 00:0c: ioport range 0x400-0x47f could not be reserved
[ 14.106830] pnp: 00:0c: ioport range 0x680-0x6ff has been reserved
[ 14.106891] pnp: 00:0c: ioport range 0x480-0x4bf has been reserved
[ 14.107638] PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
[ 14.107723] PCI: Bridge: 0000:00:1e.0
[ 14.107781] IO window: d000-dfff
[ 14.107841] MEM window: ff800000-ff8fffff
[ 14.107899] PREFETCH window: dea00000-deafffff
[ 14.107976] PCI: Setting latency timer of device 0000:00:1e.0 to 64
[ 14.108055] NET: Registered protocol family 2
[ 14.140988] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 14.141260] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[ 14.141543] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 14.141720] TCP: Hash tables configured (established 16384 bind 8192)
[ 14.141781] TCP reno registered
[ 14.153140] checking if image is initramfs... it is
[ 15.227271] Freeing initrd memory: 6749k freed
[ 15.228278] audit: initializing netlink socket (disabled)
[ 15.228366] audit(1200860235.092:1): initialized
[ 15.228753] VFS: Disk quotas dquot_6.5.1
[ 15.228847] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 15.229009] io scheduler noop registered
[ 15.229104] io scheduler anticipatory registered
[ 15.229196] io scheduler deadline registered
[ 15.229303] io scheduler cfq registered (default)
[ 15.230031] isapnp: Scanning for PnP cards...
[ 15.584370] isapnp: No Plug & Play device found
[ 15.681525] Real Time Clock Driver v1.12ac
[ 15.681700] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
[ 15.681952] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 15.682567] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 15.684520] 00:05: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 15.685389] 00:06: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 15.686270] mice: PS/2 mouse device common for all mice
[ 15.687694] RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize
[ 15.688280] input: Macintosh mouse button emulation as /class/input/input0
[ 15.688425] Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
[ 15.688490] ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
[ 15.688964] PNP: PS/2 Controller [PNP0f03:PS2M] at 0x60,0x64 irq 12
[ 15.689028] PNP: PS/2 controller doesn't have KBD irq; using default 1
[ 15.692069] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 15.692139] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 15.692493] EISA: Probing bus 0 at eisa.0
[ 15.692598] EISA: Detected 0 cards.
[ 15.722824] TCP cubic registered
[ 15.722896] NET: Registered protocol family 1
[ 15.723005] Using IPI No-Shortcut mode
[ 15.723232] ACPI: (supports<6>Time: tsc clocksource has been installed.
[ 15.723367] S0 S1 S4 S5)
[ 15.723634] Magic number: 8:313:296
[ 15.723767] hash matches device ttywd
[ 15.724036] hash matches device tty29
[ 15.724984] Freeing unused kernel memory: 328k freed
[ 17.269258] Capability LSM initialized
[ 17.435928] ACPI: Processor [CPU1] (supports 8 throttling states)
[ 17.435960] ACPI Exception (acpi_processor-0677): AE_NOT_FOUND, Processor Device is not present [20060707]
[ 18.956789] usbcore: registered new interface driver usbfs
[ 18.956845] usbcore: registered new interface driver hub
[ 18.956902] usbcore: registered new device driver usb
[ 18.959029] USB Universal Host Controller Interface driver v3.0
[ 18.959162] ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 16
[ 18.959186] PCI: Setting latency timer of device 0000:00:1d.0 to 64
[ 18.959194] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[ 18.959477] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
[ 18.959526] uhci_hcd 0000:00:1d.0: irq 16, io base 0x0000e800
[ 18.959791] usb usb1: configuration #1 chosen from 1 choice
[ 18.959847] hub 1-0:1.0: USB hub found
[ 18.959866] hub 1-0:1.0: 2 ports detected
[ 19.060547] ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 17
[ 19.060574] PCI: Setting latency timer of device 0000:00:1d.1 to 64
[ 19.060582] uhci_hcd 0000:00:1d.1: UHCI Host Controller
[ 19.060640] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
[ 19.060680] uhci_hcd 0000:00:1d.1: irq 17, io base 0x0000e880
[ 19.060868] usb usb2: configuration #1 chosen from 1 choice
[ 19.060934] hub 2-0:1.0: USB hub found
[ 19.060956] hub 2-0:1.0: 2 ports detected
[ 19.164419] ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
[ 19.164447] PCI: Setting latency timer of device 0000:00:1d.2 to 64
[ 19.164455] uhci_hcd 0000:00:1d.2: UHCI Host Controller
[ 19.164503] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
[ 19.164546] uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000ec00
[ 19.164759] usb usb3: configuration #1 chosen from 1 choice
[ 19.164827] hub 3-0:1.0: USB hub found
[ 19.164846] hub 3-0:1.0: 2 ports detected
[ 19.267560] Floppy drive(s): fd0 is 1.44M
[ 19.269108] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 19
[ 19.269146] PCI: Setting latency timer of device 0000:00:1d.7 to 64
[ 19.269153] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[ 19.269248] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
[ 19.269324] ehci_hcd 0000:00:1d.7: debug port 1
[ 19.269335] PCI: cache line size of 128 is not supported by device 0000:00:1d.7
[ 19.269365] ehci_hcd 0000:00:1d.7: irq 19, io mem 0xffa7fc00
[ 19.273251] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 19.273430] usb usb4: configuration #1 chosen from 1 choice
[ 19.273493] hub 4-0:1.0: USB hub found
[ 19.273514] hub 4-0:1.0: 6 ports detected
[ 19.305119] FDC 0 is a post-1991 82077
[ 19.389706] SCSI subsystem initialized
[ 19.401947] libata version 2.20 loaded.
[ 19.409853] ata_piix 0000:00:1f.1: version 2.10ac1
[ 19.409880] PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
[ 19.409894] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
[ 19.409926] PCI: Setting latency timer of device 0000:00:1f.1 to 64
[ 19.410043] ata1: PATA max UDMA/100 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001ffa0 irq 14
[ 19.410116] ata2: PATA max UDMA/100 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001ffa8 irq 15
[ 19.410147] scsi0 : ata_piix
[ 19.572121] ata1.00: ata_hpa_resize 1: sectors = 78242976, hpa_sectors = 78242976
[ 19.572134] ata1.00: ATA-6: SAMSUNG SP4002H, QU100-60, max UDMA/100
[ 19.572139] ata1.00: 78242976 sectors, multi 16: LBA
[ 19.580154] ata1.00: ata_hpa_resize 1: sectors = 78242976, hpa_sectors = 78242976
[ 19.580169] ata1.00: configured for UDMA/100
[ 19.580233] scsi1 : ata_piix
[ 19.899695] ata2.00: ATAPI, max MWDMA2
[ 19.907425] usb 2-1: new low speed USB device using uhci_hcd and address 2
[ 20.063539] ata2.00: configured for MWDMA2
[ 20.063846] scsi 0:0:0:0: Direct-Access ATA SAMSUNG SP4002H QU10 PQ: 0 ANSI: 5
[ 20.065046] scsi 1:0:0:0: CD-ROM SAMSUNG CD-ROM SC-152C C300 PQ: 0 ANSI: 5
[ 20.085982] usb 2-1: configuration #1 chosen from 1 choice
[ 20.103205] SCSI device sda: 78242976 512-byte hdwr sectors (40060 MB)
[ 20.105471] sda: Write Protect is off
[ 20.105483] sda: Mode Sense: 00 3a 00 00
[ 20.105556] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 20.105709] SCSI device sda: 78242976 512-byte hdwr sectors (40060 MB)
[ 20.105728] sda: Write Protect is off
[ 20.105732] sda: Mode Sense: 00 3a 00 00
[ 20.105763] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 20.105770] sda:<6>usbcore: registered new interface driver hiddev
[ 20.156552] sda1 sda2 < sda5<6>input: Chicony USB Keyboard as /class/input/input1
[ 20.174461] input: USB HID v1.10 Keyboard [Chicony USB Keyboard] on usb-0000:00:1d.1-1
[ 20.181167] sda6 sda7 sda8<6>input: Chicony USB Keyboard as /class/input/input2
[ 20.211640] input,hiddev96: USB HID v1.10 Device [Chicony USB Keyboard] on usb-0000:00:1d.1-1
[ 20.211686] usbcore: registered new interface driver usbhid
[ 20.211694] drivers/usb/input/hid-core.c: v2.6:USB HID core driver
[ 20.249336] sda9 > sda3 sda4
[ 20.251915] sd 0:0:0:0: Attached scsi disk sda
[ 20.256123] sr0: scsi3-mmc drive: 1x/52x cd/rw xa/form2 cdda tray
[ 20.256138] Uniform CD-ROM driver Revision: 3.20
[ 20.256718] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 20.266797] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 20.267167] sr 1:0:0:0: Attached scsi generic sg1 type 5
[ 32.618035] i810_smbus 0000:00:02.0: i810/i815 i2c device found.
[ 32.902413] iTCO_vendor_support: vendor-support=0
[ 32.905021] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.01 (11-Nov-2006)
[ 32.905161] iTCO_wdt: Found a ICH4 TCO device (Version=1, TCOBASE=0x0460)
[ 32.905210] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[ 32.943635] intel_rng: Firmware space is locked read-only. If you can't or
[ 32.943640] intel_rng: don't want to disable this in firmware setup, and if
[ 32.943643] intel_rng: you are certain that your system has a functional
[ 32.943645] intel_rng: RNG, try using the 'no_fwh_detect' option.
[ 33.844906] Linux agpgart interface v0.102 (c) Dave Jones
[ 33.867588] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 34.028634] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 34.047901] input: PC Speaker as /class/input/input3
[ 34.055877] agpgart: Detected an Intel 845G Chipset.
[ 34.056047] agpgart: Detected 8060K stolen memory.
[ 34.075033] agpgart: AGP aperture is 128M @ 0xf0000000
[ 34.599607] usbcore: registered new interface driver xpad
[ 34.599619] drivers/usb/input/xpad.c: driver for Xbox controllers v0.1.6
[ 34.638117] parport: PnPBIOS parport detected.
[ 34.638158] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE,EPP]
[ 34.725972] input: ImPS/2 Logitech Wheel Mouse as /class/input/input4
[ 35.072539] ACPI: PCI Interrupt 0000:00:1f.5[B] -> GSI 17 (level, low) -> IRQ 20
[ 35.072599] PCI: Setting latency timer of device 0000:00:1f.5 to 64
[ 35.384899] intel8x0_measure_ac97_clock: measured 54565 usecs
[ 35.384909] intel8x0: clocking to 48000
[ 35.735678] fuse init (API version 7.8)
[ 35.785566] lp0: using parport0 (interrupt-driven).
[ 35.902589] Adding 530104k swap on dev/sda9. Priority:-1 extents:1 across:530104k
[ 63.100812] NET: Registered protocol family 17
[ 68.114305] input: Power Button (FF) as /class/input/input5
[ 68.114795] ACPI: Power Button (FF) [PWRF]
[ 68.142277] input: Sleep Button (CM) as /class/input/input6
[ 68.142773] ACPI: Sleep Button (CM) [SLPB]
[ 68.224131] Using specific hotkey driver
[ 68.290684] No dock devices found.
[ 68.379952] ibm_acpi: ec object not found
[ 68.648510] pcc_acpi: loading...
[ 71.986141] ppdev: user-space parallel port driver
[ 73.303573] apm: BIOS not found.
[ 74.179507] Bluetooth: Core ver 2.11
[ 74.180562] NET: Registered protocol family 31
[ 74.180569] Bluetooth: HCI device and connection manager initialized
[ 74.180578] Bluetooth: HCI socket layer initialized
[ 74.218120] Bluetooth: L2CAP ver 2.8
[ 74.218129] Bluetooth: L2CAP socket layer initialized
[ 74.311922] Bluetooth: RFCOMM socket layer initialized
[ 74.312142] Bluetooth: RFCOMM TTY layer initialized
[ 74.312148] Bluetooth: RFCOMM ver 1.8
[ 77.039911] [drm] Initialized drm 1.1.0 20060810
[ 77.052763] ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 16
[ 77.058604] [drm] Initialized i915 1.6.0 20060119 on minor 0
[ 117.781191] NET: Registered protocol family 10
[ 117.781432] lo: Disabled Privacy Extensions

I have a cable modem, manufactured by Scientific Atlanta. Model = Webstar - DPC2100 Series

I hope this is useful.

Your ethernet card it is not detected... That's your problem, not the modem.

Can you attach the following information?

$ lspci

$ lsmod

following are the results:

$ lspci
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 01)
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
01:00.0 Communication controller: Conexant HSF 56k Data/Fax/Voice/Spkp (w/Handset) Modem (WorldW SmartDAA) (rev 01)
01:02.0 Ethernet controller: Hangzhou Silan Microelectronics Co., Ltd. Unknown device 2031 (rev 01)

$ lsmod
Module Size Used by
ipv6 269088 8
i915 25472 2
drm 81044 3 i915
binfmt_misc 12680 1
rfcomm 40856 0
l2cap 25856 5 rfcomm
bluetooth 55908 4 rfcomm,l2cap
ppdev 10116 0
speedstep_lib 6148 0
cpufreq_userspace 5408 0
cpufreq_stats 7360 0
cpufreq_powersave 2688 0
cpufreq_ondemand 9228 0
freq_table 5792 2 cpufreq_stats,cpufreq_ondemand
cpufreq_conservative 8200 0
tc1100_wmi 8068 0
pcc_acpi 13184 0
dev_acpi 12292 0
sony_acpi 6284 0
video 16388 0
sbs 15652 0
i2c_ec 6016 1 sbs
dock 10268 0
button 8720 0
battery 10756 0
container 5248 0
ac 6020 0
asus_acpi 17308 0
backlight 7040 1 asus_acpi
af_packet 23816 0
nls_iso8859_1 5120 2
nls_cp437 6784 2
vfat 14208 2
fat 53916 1 vfat
lp 12452 0
fuse 46612 0
snd_intel8x0 34332 1
snd_ac97_codec 98464 1 snd_intel8x0
ac97_bus 3200 1 snd_ac97_codec
snd_pcm_oss 44544 0
snd_mixer_oss 17408 1 snd_pcm_oss
snd_pcm 79876 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 4740 0
snd_seq_oss 32896 0
snd_seq_midi 9600 0
snd_rawmidi 25472 1 snd_seq_midi
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
parport_pc 36388 1
parport 36936 3 ppdev,lp,parport_pc
pcspkr 4224 0
snd_seq 52592 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 23684 2 snd_pcm,snd_seq
snd_seq_device 9100 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
psmouse 38920 0
serio_raw 7940 0
snd 54020 12 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 8672 1 snd
xpad 9988 0
snd_page_alloc 10888 2 snd_intel8x0,snd_pcm
shpchp 34324 0
intel_agp 26140 1
pci_hotplug 32576 1 shpchp
agpgart 35400 3 drm,intel_agp
iTCO_wdt 11812 0
iTCO_vendor_support 4868 1 iTCO_wdt
i2c_i810 6276 0
i2c_algo_bit 8712 1 i2c_i810
i2c_core 22656 3 i2c_ec,i2c_i810,i2c_algo_bit
tsdev 8768 0
evdev 11008 4
ext2 66824 4
mbcache 9604 1 ext2
sg 36252 0
usbhid 26592 0
hid 27392 1 usbhid
sr_mod 17060 0
cdrom 37664 1 sr_mod
sd_mod 23428 8
ata_piix 15492 7
ata_generic 9092 0
libata 125720 2 ata_piix,ata_generic
scsi_mod 142348 4 sg,sr_mod,sd_mod,libata
floppy 59524 0
generic 5124 0 [permanent]
ehci_hcd 34188 0
uhci_hcd 25360 0
usbcore 134280 5 xpad,usbhid,ehci_hcd,uhci_hcd
thermal 14856 0
processor 31048 1 thermal
fan 5636 0
fbcon 42656 0
tileblit 3584 1 fbcon
font 9216 1 fbcon
bitblit 6912 1 fbcon
softcursor 3200 1 bitblit
vesafb 9220 0
capability 5896 0
commoncap 8192 1 capability

Will buy a new ethernet card. That seems to be the simplest solution.

Thanks Vicent!

Thanks Vicent Cubells, that solved my question.

As an afterthought, I wonder that since the card is working on Gutsy, is there any reason for me to expect that the driver will be backported to Fiesty?

Probably not.
But I dont't know it.