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Home > Archive > Linux Debian support > August 2005 > PPPoE, gateway slowness.
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PPPoE, gateway slowness.
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| ironyWrit 2005-08-22, 5:52 pm |
| System: 2.33 Ghz XEON, 512 MB ram, 72 GB hard-drive.
Network:
External: Verizon FiOS, RealTek 8029, PPPoE (connection speed unknown,
presume 10MBits full-duplex). MTU=1492, TXQUEUELEN=30
Internal: ReakTek 8139 onboard, static IP, 192.168.1.0/24, netmask
255.255.255.0. MTU=1500, TXQUEUELEN=1000, connection speed 100MBits,
full-duplex.
Linux:
Debian distribution, unstable.
2.6.8, 2.6.11, and now compiling 2.6.12.5 kernel.
I configured my internet connection using pppoeconf. I tried several
programs to even try to get the thing routing before I realized it was one
line that made all the difference:
iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE
in fact, to my knowledge, I'm not enforcing any other rules in the script,
except the ones automatically generated by pppoeconf.
Problem: Using the simple D-LINK router they gave me, and letting it manage
the network, I get 5 down/2 up on every machine.
Using the Linux box, on my LAN machines I get about 1/3rd (at most) of the
speed that I normally would get, even if everyone else on the LAN is idle...
and currently the LAN is only 2 machines running XP pro plus the Linux box
which is the gateway. On the linux box, when I use the internet, however, I
get the full speed.
I have no idea what to do. I've tried everything. I know there needs to be
more rules there just to make the gateway work, but I have no idea what's
going on.
I have asked around on comp.os.linux.networking but no one seems to have an
answer or they are bored with the question. That's when I realized that it
might be a Debian-specific problem.
I may have overlooked some scripts, I really want a full general idea of
what the iptables are doing, what they default to and why they are there. I
removed all the other "automatic" firewall software out there. Obviously
the canned approach is not going to work for me.
Help will be appreciated. Feel free to reply to the group or to my personal
e-mail.
Regards,
Me.
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| dillitante 2005-08-23, 2:46 am |
| I see you are a fellow FIOS user. Just wondering if you notice some dns
lag occurring in general web surfing. I get some annoying delays waiting
for a site to come up after a break from browsing.
The download speed is amazing when dealing with large files but the
regular surfing activities are often sluggish, unlike my Optonline account
was.
Mike
--
mhanson@hx4.com
GnuPG Key ID - A7BC8236
AIM - "njlinuxmike"
www.hx4.com
www.gnupg.org
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| ironyWrit 2005-08-23, 5:47 pm |
| I get that, too.
... It's actually not extremely slow, in fact, I got slowness with
broadband cable like that, too. It's the sheer volume of traffic, and the
way ATM packet routing is does, I suppose, but I'm not an expert on that (my
mother kinda is, though)...
"dillitante" <mhanson@hx4.com> wrote in message
news:pan.2005.08.23.05.33.00.683755@hx4.com...
>I see you are a fellow FIOS user. Just wondering if you notice some dns
> lag occurring in general web surfing. I get some annoying delays waiting
> for a site to come up after a break from browsing.
>
> The download speed is amazing when dealing with large files but the
> regular surfing activities are often sluggish, unlike my Optonline account
> was.
>
> Mike
> --
>
> mhanson@hx4.com
> GnuPG Key ID - A7BC8236
> AIM - "njlinuxmike"
> www.hx4.com
> www.gnupg.org
>
>
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