* PROBLEM: networking - port 80 not accessible on eth0
[not found] <af2dae3d0901082220i6d819f31tfb26ac9ad57f750@mail.gmail.com>
@ 2009-01-09 12:01 ` Orgad Shaneh
2009-01-09 14:43 ` Ilpo Järvinen
0 siblings, 1 reply; 2+ messages in thread
From: Orgad Shaneh @ 2009-01-09 12:01 UTC (permalink / raw)
To: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 3302 bytes --]
---------- Forwarded message ----------
From: Orgad Shaneh <orgads@gmail.com>
Date: Fri, Jan 9, 2009 at 8:20 AM
Subject: PROBLEM: networking - port 80 not accessible on eth0
To: linux-kernel@vger.kernel.org
I have a "VIA Technologies, VIA Technologies, Inc. VT6102 [Rhine-II]"
NIC connected to an ECI B-FOCuS 270PR ADSL model. I used fedora since
version 5. On FC5 (using kernel 2.6.15) the modem functioned as a
router, and it worked fine.
When I upgraded to FC6 (which was published with kernel 2.6.18) I
couldn't access any websites. I found out that I can access https, ftp
etc. but not http. I figured out that for some reason, port 80 was
blocked. When using VMWare with Windows, I could access websites.
I configured the modem to be a bridge, and I'm connecting through
pppoe. This way it works. Anyway, although I can access websites on
ppp0, I cannot access the modem itself (for configuration), which is
on eth0 port 80.
I attached a tcpdump when trying to connect to the modem (the same
applies for websites, when the modem is configured as a gateway):
After trying some different distributions (fedora up to 9, ubuntu 8.04
and 8.10), the problem remains. That's what leads me to the conclusion
that the problem is in the kernel.
ipv6 is disabled in modprobe.conf, so it is not the problem.
thanks ahead for your help.
/proc/version:
Linux version 2.6.27-9-generic (buildd@rothera) (gcc version 4.3.2
(Ubuntu 4.3.2-1ubuntu11) ) #1 SMP Thu Nov 20 21:57:00 UTC 2008
ver_linux:
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux home 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC 2008 i686 GNU/Linux
Gnu C 4.3.2
Gnu make 3.81
binutils 2.18.93.20081009
util-linux 2.14
mount support
module-init-tools 3.3-pre11
e2fsprogs 1.41.3
reiserfsprogs 3.6.19
Linux C Library 2.8.90
Dynamic linker (ldd) 2.8.90
Procps 3.2.7
Net-tools 1.60
Kbd 1.14.1
Sh-utils 6.10
udev 124
wireless-tools 29
Modules Loaded binfmt_misc vboxdrv xt_TCPMSS xt_tcpmss
xt_tcpudp nfsd xt_state lockd nfs_acl auth_rpcgss sunrpc exportfs
ipt_MASQUERADE ppdev pppoe pppox speedstep_lib cpufreq_powersave
cpufreq_userspace cpufreq_stats cpufreq_ondemand freq_table
cpufreq_conservative battery video output sbs sbshc pci_slot container
wmi ipt_LOG iptable_mangle iptable_filter iptable_nat ip_tables nf_nat
x_tables nf_conntrack_ipv4 nf_conntrack af_packet ppp_generic slhc
ipv6 ac lp pcspkr snd_via82xx gameport snd_ac97_codec evdev ac97_bus
snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_mpu401_uart
snd_seq_dummy snd_seq_osssnd_seq_midi snd_rawmidi snd_seq_midi_event
snd_seq snd_timer snd_seq_device parport_pc parport nvidia snd
via_ircc soundcore irda crc_ccitt i2c_viapro button i2c_core via_agp
shpchp agpgart pci_hotplug ext3 jbd mbcache sr_mod cdrom sd_mod
crc_t10dif sg usbhid hid pata_via pata_acpi ata_generic libata
via_rhine scsi_mod dock ohci_hcd uhci_hcd ehci_hcd 8139cp 8139too mii
usbcore dm_mirror dm_log dm_snapshot dm_mod thermal processor fan
fbcontileblit font bitblit softcursor fuse
[-- Attachment #2: tcpdump.log --]
[-- Type: application/octet-stream, Size: 2451 bytes --]
[root@home ~]# tcpdump -vv -i eth0 '!pppoes && !pppoed'
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
09:04:52.800994 arp who-has 192.168.1.1 tell 192.168.1.3
09:04:52.802032 arp reply 192.168.1.1 is-at 00:30:54:95:c5:dd (oui Unknown)
09:04:52.802062 IP (tos 0x0, ttl 64, id 22588, offset 0, flags [DF], proto TCP (6), length 60) 192.168.1.3.33871 > 192.168.1.1.http: S, cksum 0x5e4e (correct), 1593968600:1593968600(0) win 5840 <mss 1460,sackOK,timestamp 70279140 0,nop,wscale 6>
09:04:52.803882 IP (tos 0x0, ttl 64, id 51777, offset 0, flags [none], proto TCP (6), length 60) 192.168.1.1.http > 192.168.1.3.33871: S, cksum 0xf2db (correct), 2606754246:2606754246(0) ack 1593968601 win 17376 <mss 1460,nop,wscale 0,nop,nop,timestamp 179247 70279140>
09:04:52.803956 IP (tos 0x0, ttl 64, id 22589, offset 0, flags [DF], proto TCP (6), length 52) 192.168.1.3.33871 > 192.168.1.1.http: ., cksum 0x6220 (correct), 1:1(0) ack 1 win 92 <nop,nop,timestamp 70279144 179247>
09:04:52.804155 IP (tos 0x0, ttl 64, id 22590, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70279144 179247>
09:04:53.007847 IP (tos 0x0, ttl 64, id 22591, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70279348 179247>
09:04:53.415721 IP (tos 0x0, ttl 64, id 22592, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70279756 179247>
09:04:54.231452 IP (tos 0x0, ttl 64, id 22593, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70280572 179247>
09:04:55.862953 IP (tos 0x0, ttl 64, id 22594, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70282204 179247>
09:04:59.125961 IP (tos 0x0, ttl 64, id 22595, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70285468 179247>
09:05:05.651970 IP (tos 0x0, ttl 64, id 22596, offset 0, flags [DF], proto TCP (6), length 471) 192.168.1.3.33871 > 192.168.1.1.http: P 1:420(419) ack 1 win 92 <nop,nop,timestamp 70291996 179247>
12 packets captured
17 packets received by filter
0 packets dropped by kernel
[-- Attachment #3: lspci.log --]
[-- Type: application/octet-stream, Size: 10407 bytes --]
00:00.0 Host bridge: VIA Technologies, Inc. VT8753 [P4X266 AGP] (rev 01)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 8
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [a0] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=x4
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: agpgart-via
Kernel modules: via-agp
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: e8000000-e9ffffff
Prefetchable memory behind bridge: d8000000-e7ffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: shpchp
00:08.0 USB Controller: OPTi Inc. 82C861 (rev 10) (prog-if 10)
Subsystem: OPTi Inc. 82C861
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 11
Region 0: Memory at eb401000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci_hcd
Kernel modules: ohci-hcd
00:09.0 Communication controller: Intel Corporation 536EP Data Fax Modem
Subsystem: Intel Corporation Device 1000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 5
Region 0: Memory at eb000000 (32-bit, non-prefetchable) [size=4M]
Capabilities: [e0] Power Management version 2
Flags: PMEClk- DSI- D1- D2+ AuxCurrent=375mA PME(D0-,D1-,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 12
Region 0: I/O ports at d000 [size=256]
Region 1: Memory at eb400000 (32-bit, non-prefetchable) [size=256]
[virtual] Expansion ROM at 50000000 [disabled] [size=64K]
Kernel driver in use: 8139too
Kernel modules: 8139too, 8139cp
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 11
Region 4: I/O ports at d400 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 32 bytes
Interrupt: pin B routed to IRQ 5
Region 4: I/O ports at d800 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 32 bytes
Interrupt: pin C routed to IRQ 12
Region 4: I/O ports at dc00 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: uhci_hcd
Kernel modules: uhci-hcd
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) (prog-if 20)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32, Cache Line Size: 128 bytes
Interrupt: pin D routed to IRQ 3
Region 0: Memory at eb402000 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ehci_hcd
Kernel modules: ehci-hcd
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: via-ircc, i2c-viapro
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32
Interrupt: pin A routed to IRQ 11
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
Region 4: I/O ports at e000 [size=16]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pata_via
Kernel modules: pata_via
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
Subsystem: Elitegroup Computer Systems Device 0a73
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 12
Region 0: I/O ports at e400 [size=256]
Capabilities: [c0] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: VIA 82xx Audio
Kernel modules: snd-via82xx
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
Subsystem: VIA Technologies, Inc. Device 0102
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (750ns min, 2000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at e800 [size=256]
Region 1: Memory at eb403000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: via-rhine
Kernel modules: via-rhine
01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 440-SE] (rev a3)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e8000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d8000000 (32-bit, prefetchable) [size=128M]
Region 2: Memory at e0000000 (32-bit, prefetchable) [size=512K]
[virtual] Expansion ROM at e0080000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
Kernel driver in use: nvidia
Kernel modules: nvidia, nvidiafb
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: PROBLEM: networking - port 80 not accessible on eth0
2009-01-09 12:01 ` PROBLEM: networking - port 80 not accessible on eth0 Orgad Shaneh
@ 2009-01-09 14:43 ` Ilpo Järvinen
0 siblings, 0 replies; 2+ messages in thread
From: Ilpo Järvinen @ 2009-01-09 14:43 UTC (permalink / raw)
To: Orgad Shaneh; +Cc: LKML, Netdev
Added netdev though this is unlikely to end up being dev related.
On Fri, 9 Jan 2009, Orgad Shaneh wrote:
> ---------- Forwarded message ----------
> From: Orgad Shaneh <orgads@gmail.com>
> Date: Fri, Jan 9, 2009 at 8:20 AM
> Subject: PROBLEM: networking - port 80 not accessible on eth0
> To: linux-kernel@vger.kernel.org
>
>
> I have a "VIA Technologies, VIA Technologies, Inc. VT6102 [Rhine-II]"
> NIC connected to an ECI B-FOCuS 270PR ADSL model. I used fedora since
> version 5. On FC5 (using kernel 2.6.15) the modem functioned as a
> router, and it worked fine.
>
> When I upgraded to FC6 (which was published with kernel 2.6.18) I
> couldn't access any websites. I found out that I can access https, ftp
> etc. but not http. I figured out that for some reason, port 80 was
> blocked. When using VMWare with Windows, I could access websites.
>
> I configured the modem to be a bridge, and I'm connecting through
> pppoe. This way it works. Anyway, although I can access websites on
> ppp0, I cannot access the modem itself (for configuration), which is
> on eth0 port 80.
>
> I attached a tcpdump when trying to connect to the modem (the same
> applies for websites, when the modem is configured as a gateway):
>
> After trying some different distributions (fedora up to 9, ubuntu 8.04
> and 8.10), the problem remains. That's what leads me to the conclusion
> that the problem is in the kernel.
Unlikely so, more likely the router is broken and some kernel TCP settings
got changed in the newer kernels. I took a short look into the provided
tcpdump and the modem negotiates tcp connection ok but then goes dead
silent.
Your could try playing around with tcp_window_scaling sysctl,
most likely the modem has some problem related to it.
--
i.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-01-09 12:01 ` PROBLEM: networking - port 80 not accessible on eth0 Orgad Shaneh
2009-01-09 14:43 ` Ilpo Järvinen
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