Re: Standard way to change IP?

2000-02-01 Thread Oki DZ


On Fri, 7 Jan 2000, George Bonser wrote:

> On Sat, 8 Jan 2000, Jonathan Chang wrote:
> 
> > Hi, all
> > 
> > Is there any standard way for debian to change ip address? Or
> > I need to modify files in /etc manully? Thanks in advance.
> 
> Edit /etc/init.d/network and reboot is the EASIEST way for a newbie.

No need to reboot, just "shutdown" the NIC:
ifconfig eth0 down
and then run the /etc/init.d/network (after you edited it of course):
/etc/init.d/network

Oki


Re: Standard way to change IP?

2000-01-10 Thread Ronald Tin
On Sat, Jan 08, 2000 at 09:17:05PM +0100, Robert Waldner wrote:
> >I find that sometimes I cannot use that interface after the network
> >is changed I get something like "network unreachable" when
> >I try to ping some hosts on that network. The NIC is fine after
> >a reboot. Most of the time I was using slink with kernel 2.2.13.
> >Are there any other things that I need to do?  Or was it driver
> >dependent?
> 
> sounds like a missing route, route -n will show you the actual routing table, 
> which should be something like
> Destination Gateway Genmask Flags Metric RefUse Iface
> 193.154.142.0   0.0.0.0 255.255.255.0   U 0  0  116 eth0
> 127.0.0.0   0.0.0.0 255.0.0.0   U 0  04 lo
> 0.0.0.0 193.154.142.1   0.0.0.0 UG1  0   46 eth0
> 
> the kernel needs to know which ip-address of its default-gateway and over 
> which interface that can be reached.
> 
> /etc/init.d/network should add the appropriate routes when invoked via 
> /etc/rcS.d/S40network.
> 
> if that doesn´t help, do a ping -v to see where the unreachables come from, 
> could be your host or some router on the way...
> 

But the routes are there. At least the routes for the local
network are there. (2.2 kernels add them automatically, don't
they?) I even tried to manually bring down all ethX, remove all
routes and start them up again. Still doesn't work until I reboot
in frustration. Can't even ping other hosts in the same network.

Perhaps I overlooked something

To Lindsay: I tried manually using ifconfig already :(


Re: Standard way to change IP?

2000-01-08 Thread Robert Waldner
On Sun, 09 Jan 2000 03:06:02 +0800, Ronald Tin writes:
>On Sat, Jan 08, 2000 at 12:10:41PM +0100, Robert Waldner wrote:
>> modify /etc/init.d/network accordingly, do an ifconfig  down, the
>n run  /etc/rcS.d/S40network
>
>I find that sometimes I cannot use that interface after the network
>is changed I get something like "network unreachable" when
>I try to ping some hosts on that network. The NIC is fine after
>a reboot. Most of the time I was using slink with kernel 2.2.13.
>Are there any other things that I need to do?  Or was it driver
>dependent?

sounds like a missing route, route -n will show you the actual routing table, 
which should be something like
Destination Gateway Genmask Flags Metric RefUse Iface
193.154.142.0   0.0.0.0 255.255.255.0   U 0  0  116 eth0
127.0.0.0   0.0.0.0 255.0.0.0   U 0  04 lo
0.0.0.0 193.154.142.1   0.0.0.0 UG1  0   46 eth0

the kernel needs to know which ip-address of its default-gateway and over which 
interface that can be reached.

/etc/init.d/network should add the appropriate routes when invoked via 
/etc/rcS.d/S40network.

if that doesn´t help, do a ping -v to see where the unreachables come from, 
could be your host or some router on the way...

&rw
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Re: Standard way to change IP?

2000-01-08 Thread Ronald Tin
On Sat, Jan 08, 2000 at 12:10:41PM +0100, Robert Waldner wrote:
> On Sat, 08 Jan 2000 15:04:33 +0800, Jonathan Chang writes:
> >Hi, all
> >
> > Is there any standard way for debian to change ip address? Or
> >I need to modify files in /etc manully? Thanks in advance.
> 
> modify /etc/init.d/network accordingly, do an ifconfig  down, then 
> run  /etc/rcS.d/S40network

I find that sometimes I cannot use that interface after the network
is changed I get something like "network unreachable" when
I try to ping some hosts on that network. The NIC is fine after
a reboot. Most of the time I was using slink with kernel 2.2.13.
Are there any other things that I need to do?  Or was it driver
dependent?


Re: Standard way to change IP?

2000-01-08 Thread Dave Sherohman
Jonathan Chang said:
>   Is there any standard way for debian to change ip address? Or
> I need to modify files in /etc manully? Thanks in advance.

To change it temporarily (until the next reboot), use ifconfig.

For a permanent change, yes, you have to edit a config file in /etc.
(/etc/init.d/network, to be exact.)

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Re: Standard way to change IP?

2000-01-08 Thread Robert Waldner
On Sat, 08 Jan 2000 15:04:33 +0800, Jonathan Chang writes:
>Hi, all
>
>   Is there any standard way for debian to change ip address? Or
>I need to modify files in /etc manully? Thanks in advance.

modify /etc/init.d/network accordingly, do an ifconfig  down, then 
run  /etc/rcS.d/S40network

&rw
-- 
-- +++ EUnet/[EMAIL PROTECTED], 15.-17.2.'2k, Ebene02/Stand08 +++
- ___   - Robert WaldnerEUnet/AT tech staff 
 //   /  ___   _/_ -- <[EMAIL PROTECTED]>   RW960-RIPE
--- /--- /   / /   / /___/ /  --- ---EUnet EDV-DienstleistungsgesmbH---
-- /___ /___/ /   / /___  /_  Diefenbachgasse 35A-1150 Wien
-   - Tel: +43 1 89933 Fax: +43 1 89933 533



Standard way to change IP?

2000-01-08 Thread Jonathan Chang
Hi, all

Is there any standard way for debian to change ip address? Or
I need to modify files in /etc manully? Thanks in advance.

--
Chia-Sheng Chang
Institute of Communications Engineering
College of Electrical Engineering
National Taiwan University
Taipei, Taiwan 10617
E-Mail: [EMAIL PROTECTED]