Ubuntu
glibc package

  1. Bug #313218
  2. Comment #82

Comment 82 for bug 313218

Revision history for this message
Gonzo (alex-satellite) wrote : Re: [Bug 313218] Re: IPV6 causes slow internet access

  On 08/08/2010 03:17 PM, Lamer wrote:
> In Ubuntu 10.04 I had problem with slow loading of web pages on three different machines (all clean install) until I disabled IPv6 in /etc/default/grub by adding this line:
> GRUB_CMDLINE_LINUX="ipv6.disable=1"
> and than updating GRUB: sudo update-grub
>
> In case there is some fix available also for Lucid I can try it.
>

So, what about GRUB_CMDLINE_LINUX="ipv6.disable=1" in Lucid? Doesn't it
work anymore?

If it doesn't then you may try the following:

1) Edit /etc/modprobe.d/blacklist.conf (if it exists in Lucid, because
I'm using Debian):
sudo gedit /etc/modprobe.d/blacklist.conf
blacklist ipv6

2) You may also add these lines in /etc/sysctl.conf:

net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 0

Then reboot.

Good luck.

Anyway, I switched to Debian Unstable (Ubuntu is based on it). I also
compile the kernel myself switching off IP6 and many other things,
applying optimization patches etc. etc. So I'm not a helper anymore.