[NTLUG:Discuss] slow download -- use Fedora 7 as a router

[m m]

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> Date: Tue, 15 Apr 2008 23:42:20 -0500
> From: leroy_tennison at prodigy.net
> To: discuss at ntlug.org
> Subject: Re: [NTLUG:Discuss] slow download -- use Fedora 7 as a router
>
> m m wrote:
>> I wonder if it a good idea to use the Fedora 7 as a router.
>>
>> What happened is When I upgrade my linux box from RH 7.0 (?) to Fedora 7,
>>
>> use the same rules for iptables and make the configuration as I had before, and the speed is down to the terrible slow -- just like the dial up speed!
>>
>> some factors I discovered:
>>
>> 1. although I configured the eth0 use DHCP, when I reboot the server, a lot of time it is up ( it says OK while booting) and have no IP address (I use Time Wanner cable).
>>
>> 2. I have to manually add route rules when I reboot --- route add -net default dev eth0
>>
>>
>>
>> All connection are good, as I can access/ping all computers in intranet. Internet connection is ok EXCEPT very slow.
>>
>> The ip_forward, rp_filter are all set to 1.
>>
>>
>>
>> the internet connection (cable to my house) speed is normal.
>>
>> I have tried to google for the solution, and no luck.
>>
>>
>> some one here have any idea?
>>
>> Thanks.
>>
>> _________________________________________________________________
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>>


Rev. wRy suggest torn of ipv6
and I follow the link:
http://blog.taragana.com/index.php/archive/how-to-disable-ipv6-on-fedora-linux-why/
it does not work for ma at all!

1. on /etc/modprobe.conf:  add these 2 lines make my ether up failed.
alias net-pf-10 off
alias ipv6 off
(error message is something like cannot find module: off)

2.  i don't see /etc/sysconfig/network containing NETWORKING_IPV6

I can only do
/sbin/service ip6tables stop   and
/sbin/chkconfig ip6tables off

It don't solve the slow connection problem.

>
> A couple of thoughts come to mind.  If you were on Red Hat 7 and went to
> Fedora 7, what's the hardware platform?  Red Hat 7 to Fedora 7 is a huge
> jump, if you didn't already have new (or at least recent) hardware that
> could be an issue.  I noticed a performance difference (not huge but
> noticeable) going from CentOS 4 to CentOS 5 on the same hardware.
>
I use the same hardware, it more then 5 years old.
I hope it is not true to me or I will back the the old version.

> The second thought concerns not getting a DHCP address.  Are both NICs
> DHCP?  The reason I ask is my home machine has two NICs (one DHCP and
> one not) and when I upgraded from Red Hat 9 to CentOS 4 the NICs
> "reversed themselves" (eth0 became eth1 and vice versa).  If I remember
> correctly I put the MAC address in the ifcfg-eth? files to force the NIC
> naming to be what I wanted.  Don't know how this would be related to
> speed but it might be worth checking if for no other reason than to
> insure that there isn't "network confusion" in the mix.

2 NICs, one for DHCP and the other one is assigned 192.168... address. both of them bind with MAC address, with correct wired/connection.

My 2 NICs are compaq and via Rhine II
but I see the it "says" (in /etc/modprobe.conf)

alias eth0 Rhine
alias eth1 Rhine

Is it cause the problem?
>
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss

_________________________________________________________________
Use video conversation to talk face-to-face with Windows Live Messenger.
http://www.windowslive.com/messenger/connect_your_way.html?ocid=TXT_TAGLM_WL_Refresh_messenger_video_042008