I've been researching this problem over the last several days as no one
seems to know what might be going on. I found a vague reference to use
of DMZ on a router causing network latency. I've got about a 10Mbit
downstream on this pricey cable connection and I was only hitting
<200K/s starting at some point a long time ago. I was trying to figure
out what I did about the time when the network started feeling gradually
slower. I now remember that I set my host up for DMZ access on the
router (being the main system on the network) at some point so that was
the answer. Now I'm hitting well over 1MB/s with some hosts. All better.

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I noticed something today. For some reason, when I'm running a Gentoo
Live-CD to rebuild this system (as I am now in the finishing stages of
once again) I get really speedy data xfer rates over my cable link
pulling files from portage mirrors. I noticed that 1.2MB/s was average
which is correct because I think my ISP runs around 10Mbit or there
abouts. However, when I rebooted the machine, pulling files from the
same mirror(s) now seems to go much slower (say, 170KB/s tops). Come to
think of it, I have noticed that difference before. I never get xfer
rates normally like I do when running the live-cd.

During the install, I run net-setup and just tell it to use dhcp (my
router issues addresses which is fine when doing an install since the
system isn't really set up to be interesting to anyone else yet). When I
am all set for production again, I use the same settings, hardcoded, as
the router receives from the modem and passes to clients, just a
different address obviously.

So my question seems to be: What might the live-cd be doing which I am
not? Is it something in the kernel or could the xfer rate be throttled
somewhere, etc?

Ideas? Thanks.

-Statux

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