[Mageia-discuss] Temporarily changing IP address

[Anne Wilson]

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On 22/05/12 18:51, AL13N wrote:

>> On 22/05/12 16:59, AL13N wrote:
>>>> On 22/05/12 15:08, AL13N wrote:
>>> 
>> Meanwhile, I played with alternatives, knowing that it must be 
>> something close to what I'd already tried.  So,
>> 
>> # ip addr add 192.168.0.20/255.255.255.0 dev eth0 # ip addr show
>> eth0 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
>> pfifo_fast
> state UP qlen 1000
>> link/ether 1c:75:08:28:bd:e4 brd ff:ff:ff:ff:ff:ff inet
>> 169.254.100.1/24 brd 169.254.100.255 scope global eth0 inet
>> 192.168.0.20/24 scope global eth0 inet6
>> fe80::1e75:8ff:fe28:bde4/64 scope link valid_lft forever
>> preferred_lft forever
>> 
>> So now it appears to have two addresses, preferring the wrong
>> one.
> 
> 
> by preferring, you mean the top one?
> 
I take it that the 169.254.100.1 is the preferred one - by the system,
that is.  I don't even know where it is getting this now, as I renamed
the config file that gave rise to it, so it shouldn't even be read now.
> 

>>> 
>> # ip route default via 192.168.0.1 dev eth1  proto static default
>> via 169.254.100.100 dev eth0  metric 10 default via 192.168.0.1
>> dev eth1  metric 10 169.254.100.0/24 dev eth0  proto kernel
>> scope link  src 169.254.100.1 metric 10 192.168.0.0/24 dev eth1
>> proto kernel  scope link  src 192.168.0.101
> 192.168.0.0/24 dev eth0  proto kernel  scope link  src
> 192.168.0.20
> 
> 
> whoa, 3 default routes? over different interfaces...
> 
> you have 192.168.0.0/24 network, both reachable over eth1 and eth0,
> i hope that is what you want...
> 
I don't want 169.254.100.0/24 at all.
The other two I do want - I simply stop the wireless one when I have a
convenient cabled connection.  The cabled connection has a static IP,
the wireless one has dhcp (the static address is not in the dhcp range).
> 
>> Last question, then, is whether this is a permanent change?
> 
> ip command is never permanent, you have to change the config files
> if you want permanent changes (ie: after reboot).
> 
But...but...but...

ifcfg-eth0:temp is now ifcfg-eth0:temp.sav so shouldn't be being read.
 I'm going to delete it altogether now.

ifcfg-eth0 is currently

EVICE=eth0
BOOTPROTO=static
IPADDR=192.168.0.20
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
ONBOOT=yes
METRIC=10
MII_NOT_SUPPORTED=no
USERCTL=yes
DNS1=212.23.3.100
DNS2=212.23.6.100
RESOLV_MODS=no
IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=no
NM_CONTROLLED=no
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
NAME="System eth0"

ifcfg-eth1 is

DEVICE=eth1
BOOTPROTO=dhcp
ONBOOT=no
METRIC=35
MII_NOT_SUPPORTED=no
USERCTL=yes
DNS1=212.23.3.100
DNS2=212.23.6.100
RESOLV_MODS=yes
WIRELESS_MODE=Managed
WIRELESS_ESSID=xxxxx
WIRELESS_ENC_KEY=s:xxxxx
WIRELESS_WPA_DRIVER=wext
WIRELESS_WPA_REASSOCIATE=no
IPV6INIT=no
IPV6TO4INIT=no
ACCOUNTING=no
NM_CONTROLLED=yes
DHCP_CLIENT=dhclient
NEEDHOSTNAME=no
PEERDNS=no
PEERYP=yes
PEERNTPD=no

You'll see that I have now set this to not connect on boot.  When the
current batch of files finish copying over I'll reboot, with the
temporary cfg deleted and the change to ifcfg-eth1.  I'll let you know
what happens.

Anne
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