[gentoo-amd64] eth3 - how to set up?

[gentoo-amd64] eth3 - how to set up?

[Paul Stear]

Hi,
I have just changed my motherboard and processor and am having trouble with my 
network connection.
I am having to enter in a root terminal the following each time I boot the 
system:-

ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
After this everything works as it should.
Where is this setting help?
I have read the guide but nothing seems to make a difference.
I'm sure this is a lack of understanding on my part so please help.
Paul
-- 
This message has been sent using kmail on gentoo.

Re: [gentoo-amd64] eth3 - how to set up?

[Dale]

Paul Stear wrote:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my
> network connection.
> I am having to enter in a root terminal the following each time I boot the
> system:-
>
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul
>    


It is usually set in /etc/conf.d/net.  You can use 
/etc/conf.d/net.example to go by.  Just find the one that matches what 
you need.

Hope that helps.

Dale

:-)  :-)

Re: [gentoo-amd64] eth3 - how to set up?

[Claes Gyllenswärd]

2011/2/7 Paul Stear <gentoo@appjaws.plus.com>:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my
> network connection.
> I am having to enter in a root terminal the following each time I boot the
> system:-
>
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul
> --
> This message has been sent using kmail on gentoo.
>
>

While I'm sure someone far more knowledgeable than me will pitch in
sooner or later, I'll give my 2 cents.
I only vaguely remember how this works, but IIRC there are HAL rules
(perhaps in /etc/hal/fdi/policy ?) that remebers your old network
cards from the previous motherboard. This gives your new card eth3,
and you don't have an init-script for eth3. I assume you're not going
to switch the MB back, so I suggest you dig around for the files,
backup and remove them. This should re-number your eth3 as eth0, and
allow the normal init-scripts to start your network.

Again, this is _not_ my area of expertise, so if you're unsure, wait
for someone else to reply.

Re: [gentoo-amd64] eth3 - how to set up?

[Agostino Sarubbo]

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Il 07/02/2011 13:00, Paul Stear ha scritto:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my 
> network connection.
> I am having to enter in a root terminal the following each time I boot the 
> system:-
>
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul

Hi.

You can see /etc/conf.d/net

Simple example

config_eth0=( "192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255" )

routes_eth0=( "default via 192.168.0.1" )

If you want to "rename" eth3 device in eth0, the easiest way is rebuilt udev

I hope that i have not confused your request

Cheers


-- 
Agostino Sarubbo ( ago )
Mail: ago@autistici.org 
Gpg: 0x7CD2DC5D
Arch Tester for Gentoo Linux amd64 http://is.gd/hcQem
Admin for HacklabCS c/o HPCC at Unica


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Re: [gentoo-amd64] eth3 - how to set up?

[P.V.Anthony]

On 2/7/2011 8:00 PM, Paul Stear wrote:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my 
> network connection.
> I am having to enter in a root terminal the following each time I boot the 
> system:-
> 
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?

Disclaimer - I am not an expert, just a learning user.

1. Move /etc/udev/rules.d/70-persistent-net.rules to a safe place.
2. Restart the machine.

This usually works for me when I have a new motherboard.

P.V.Anthony

Re: [gentoo-amd64] eth3 - how to set up?

[Stefan G. Weichinger]

Am 07.02.2011 13:00, schrieb Paul Stear:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my 
> network connection.
> I am having to enter in a root terminal the following each time I boot the 
> system:-
> 
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.

http://en.lmgtfy.com/?q=gentoo+network

;-)

I assume you have to edit/delete the entries in
/etc/udev/rules.d/70-persistent-net.rules  (new hardware, new
MAC-adresses, old udev-rules ...)

Stefan

Re: [gentoo-amd64] eth3 - how to set up?

[Thanasis]

on 02/07/2011 02:00 PM Paul Stear wrote the following:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my 
> network connection.
> I am having to enter in a root terminal the following each time I boot the 
> system:-
>
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul
Have you made a symlink in /etc/init.d (net.eth3 -> net.lo) ?

Put in /etc/conf.d/net

config_eth3=( "192.168.1.6/24 brd 192.168.1.255" )

Add to runlevel:

rc-update add net.eth3 default

Re: [gentoo-amd64] eth3 - how to set up?

[Alex Schuster]

Paul Stear writes:

> I have just changed my motherboard and processor and am having trouble
> with my network connection.
> I am having to enter in a root terminal the following each time I boot
> the system:-
> 
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0
> up After this everything works as it should.
> Where is this setting help?

Your MAC adress has changed, but you still have the old value in 
/etc/udev/rules.d/70-persistent-net.rules. Change this, and on the next boot 
it will work again. Or remove the file, but I guess eth3 will be eth0 then, 
so you might have to edit /etc/conf.d/net also.

	Wonko

Re: [gentoo-amd64] eth3 - how to set up?

[Joost Roeleveld]

On Monday 07 February 2011 12:00:59 Paul Stear wrote:
> Hi,
> I have just changed my motherboard and processor and am having trouble with
> my network connection.
> I am having to enter in a root terminal the following each time I boot the
> system:-
> 
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul

Hi Paul,

Do you have the following file on your system:
/etc/init.d/net.eth3 ?

If not, do the following:

# cd /etc/init.d
# ln -s net.lo net.eth3

That should create the "net.eth3" script for you.

Alternatively, edit the following file:
/etc/udev/rules.d/70-persistent-net.rules

This file contains the udev-rules to have each net-device use the same ethX 
every time.

--
Joost

Re: [gentoo-amd64] eth3 - how to set up?

[Branko Badrljica]

S, Paul Stear piše:
> Hi,
> I have just changed my motherboard and processor and am having trouble with my
> network connection.
> I am having to enter in a root terminal the following each time I boot the
> system:-
>
> ifconfig eth3 192.168.1.6 broadcast 192.168.1.255 netmask 255.255.255.0 up
> After this everything works as it should.
> Where is this setting help?
> I have read the guide but nothing seems to make a difference.
> I'm sure this is a lack of understanding on my part so please help.
> Paul
I'm not sure I am teh one to be answering this, but since I had similar 
problem many times and no one else seems to be answering, here it is.

Your problem is compounded. Forst part of the problem is that system 
remembers seeing your former cards and has now reserved for each card 
its ethX number.
Even if cards are not there any more ( and onboard NIC is different) 
system keeps  hoping that one day you might plug them back and keeps 
those names reserved.

udev is userland helper that is responsible for crating logical devices 
on the base of kernel messages it receives about present, plugged or 
unpluugged devices.

How and which exactly devices it creates is described in its config 
files in /etc/udev.d.

File that should inteset you is named XX-persistent-net.rules ( XX in 
front are two decimals ).

udev writes and updates it itself with each new card it finds, so that 
it knows that card with tg3 driver and MAC address XX:YY:ZZ:WW:TT.BB 
should be created as device eth4, for example.

If you don't care how new cards are numbered or if you have only one 
card, simply delete it and restart the system.

If  you do care, edit it by hand- format is obvious.

Second part of the problem is that you card is not initialized, since it 
is not named "eth0", as system expects.

If you did erase aforementioned file, after restart  new card will be 
shown as eth0, starttup scripts will find it and everything should fall 
in its place again...