Strange Internet Problem

[Gumball3000]

Hi guys,

I was hoping that someone may be able to help me. I have recently installed fedora core 3 on my desktop. It installed pretty flawlessly and everything is working fine....

Except I am having a very strange problem with my internet access. Now, I 'm usually fairly good at problem solving but this has me stumped.

I seem to have very limited connecivity to external websites, I can access the red hat external website, and a few other ones that I tried. Most of the websites I usually visit (like www.bbc.co.uk, google, ebay, engadet etc) just return nothing - with the browser giving up due to no response from the servers. The same is true if I ping these addresses from a terminal. The limited sites that I can view seem load slower than they do using firefox under winXP. I can access all of the websites I want to with no problem under windows - so I know for a fact that they are not down.

I have a Dlink router DSL-G604T, and can ping and login to it with no problems using my realtek RTL8139 ethernet wired connection. So I guess this is working correctly, else I wouldn't be able to view any external websites whatsoever.

Could there be some security settings somewhere that I need to disable? I chose not to install/activate the firewall option when I was installing FC3 as I have the router doing that job!

Any suggestions greatfully received!

Regards,

Gumball3000

[Gumball3000]

Here is some additional info that may help - I reckon my network settings are slightly screwed! My router's ip is 10.1.1.1 and the gateway is 255.0.0.0 Thanks in advance to anyone that is able to help!! I am posting this from windows as justlinux won't load on linux - whereas linuxforums will!? Weird huh?

[sy@localhost ~]$ whereis ifconfig
ifconfig: /sbin/ifconfig /usr/share/man/man8/ifconfig.8.gz
[sy@localhost ~]$ /sbin/ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:40:F4:9D:18:60
inet addr:10.1.1.2 Bcast:10.255.255.255 Mask:255.0.0.0
inet6 addr: fe80::240:f4ff:fe9d:1860/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1299 errors:0 dropped:0 overruns:0 frame:0
TX packets:1424 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1132247 (1.0 MiB) TX bytes:202913 (198.1 KiB)
Interrupt:11 Base address:0xa800

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2005 errors:0 dropped:0 overruns:0 frame:0
TX packets:2005 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3000556 (2.8 MiB) TX bytes:3000556 (2.8 MiB)

sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

[sy@localhost ~]$ whereis netstat
netstat: /bin/netstat /usr/share/man/man8/netstat.8.gz
[sy@localhost ~]$ /bin/netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0
10.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 eth0
0.0.0.0 10.1.1.1 0.0.0.0 UG 0 0 0 eth0
[sy@localhost ~]$

[sy@localhost ~]$ /sbin/lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333]
00:01.0 PCI bridge: VIA Technologies, Inc. VT8366/A/7 [Apollo KT266/A/333 AGP]
00:05.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
00:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Cont roller (PHY/Link)
00:09.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 50)
00:09.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 50)
00:09.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 51)
00:0d.0 Network controller: Texas Instruments ACX 111 54Mbps Wireless Interface
00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139 C+ (rev 10)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8233A ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/ C PIPC Bus Master IDE (rev 06)
00:11.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 23)
00:11.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 23)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro]
01:00.1 Display controller: ATI Technologies Inc Radeon R350 [Radeon 9800 Pro] ( Secondary)
[sy@localhost ~]$


[sy@localhost ~]$ /sbin/lsmod
Module Size Used by
nls_utf8 1985 1
parport_pc 24705 1
lp 11565 0
parport 41737 2 parport_pc,lp
autofs4 24005 0
i2c_dev 10433 0
i2c_core 22081 1 i2c_dev
sunrpc 160421 1
button 6481 0
battery 8517 0
ac 4805 0
md5 4033 1
ipv6 232577 8
joydev 8705 0
ohci1394 35033 0
ieee1394 302869 1 ohci1394
ehci_hcd 31557 0
uhci_hcd 31449 0
snd_cmipci 35173 2
snd_pcm_oss 47609 0
snd_mixer_oss 17217 2 snd_pcm_oss
snd_pcm 97993 2 snd_cmipci,snd_pcm_oss
snd_page_alloc 9673 1 snd_pcm
snd_opl3_lib 11201 1 snd_cmipci
snd_timer 29765 2 snd_pcm,snd_opl3_lib
snd_hwdep 9413 1 snd_opl3_lib
gameport 4801 1 snd_cmipci
snd_mpu401_uart 8769 1 snd_cmipci
snd_rawmidi 26725 1 snd_mpu401_uart
snd_seq_device 8137 2 snd_opl3_lib,snd_rawmidi
snd 54053 12 snd_cmipci,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_o pl3_lib,snd_timer,snd_hwdep,snd_mpu401_uart,snd_ra wmidi,snd_seq_device
soundcore 9889 2 snd
8139too 26305 0
mii 4673 1 8139too
floppy 58609 0
dm_snapshot 17029 0
dm_zero 2369 0
dm_mirror 23341 2
ext3 116809 2
jbd 74969 1 ext3
dm_mod 54741 6 dm_snapshot,dm_zero,dm_mirror
[sy@localhost ~]$

resolv.conf:

; generated by /sbin/dhclient-script
nameserver 10.1.1.1
search localdomain

[Gumball3000]

Well, after trying Konqueror and being able to view any website I wanted - I realised it couldn't be anything to do with network settings. I did some searching and found that IPv6 (whatever the hell that is!!) doesn't play nice with firefox.

To fix this I went to about:config page in firefox, filtered to find 'ipv' and disabled network.dns.disableIPv6.

Hope this helps some others out there! Still doesn't explain why I could see some websites but not others though!

Cheers

[mrBen]

IPv6 is the next generation of IP addresses, moving to 6 sets of numbers, rather than the current 4. I suspect that the DNS was unable to resolve IPv6 IP addresses for the sites you had problems getting to, but some companies (I guess?) already have IPv6 IPs ready for the change.