FC1 -> FC2: very slow xDSL connection...

[Andrea Giuliano]

On Thu, 2004-06-24 at 19:31, Christoph Wickert wrote:
> Am Do, den 24.06.2004 schrieb Andrea Giuliano um 15:11:
> > Dear all,
> > 
> > a few days ago I had my home ADSL connection working, and it was working
> > incredibly fast!
> > 
> > Then I decided to upgrade from FC1 to FC2. Note that I've been using FC2
> > for some weeks here at work with very positive results.
> > 
> > After the upgrade at home, the connection became so slow that it is
> > almost unusable. 
> 
> What exactly is slow: The transfer rate (e.g. when you download a big
> file from a fast server) or name resolution (getting the IP for a
> hostname)?
When I activate the ppp interface, it takes much more time than with
FC1. When I had FC1 running, the log almost immediately showed the lines
with the local and remote IP addresses and DNS' addresses. Now, after
the line "ppp <- /dev/pts... " or whatever, it takes ten or more seconds
to see those addresses.

After that moment, the connection itself is very slow. As I say in the
answer to Andy Green, some traceroute and ping command show that DNS is
not the issue here: name are resolved immediately. Traceroute starts
printing "*" after several lines which appears quite rapidly, and keeps
on this way for many many seconds, I never had that much patience to
wait for it to stop.

> I think you _may_ be hitting the problem with mozilla and IPV6, which is
> turned on by default in FC2. There has been some discussion about this
> last week on the list.

This sounds interesting. But how can I disable IPv6 to see if it's the
cause? Must I recompile the kernel, or have I just to echo something
somewhere in /proc?

Many thanks.

> Christoph
> 
-- 
Andrea Giuliano, Ph. D.
ICCU - Istituto Centrale per il Catalogo Unico
Viale Castro Pretorio 105, Rome - ITALY
Tel. +39064989509, Fax +39064059302