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

Andrea Giuliano wrote/ha scritto, On/il 25/06/2004 10:32:

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

Can you post the result of the output of the command:
/sbin/route -N

This is mine, please take inaccount that my machine is a router with two ethernet cards (one to ADSL modem, one to internal network)

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.100.1 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.254.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 192.168.100.1 0.0.0.0 UG 0 0 0 ppp0

Regards

--

Antonio

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