[Mageia-discuss] Temporarily changing IP address

Tue May 22 20:25:55 CEST 2012

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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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