It took me a while to find out whether or not "Network Connections" and "network-manager" is the same ... in my system I find only System > Einstellungen > Netzwerkverbindungen and System > Systemverwaltung > Netzwerkdiagnose. Since no one of them offered the possibility to edit anything, I opened the console-window with sudo su and edited with gedit the file "/etc/network/interfaces" (after having made a backupcopy).
--> This is not the way I think it is convenient. I cannot imagine a reason that assigning fixed IP-addresse to a network interface adapter cannot be changed any more by another user with administrator privileges and the gui tools. I admit that maybe I coundn't find the appropriate menu item where I could have solved this without hacking a system file. After a reboot now another thing happened: the good thing: I can edit again the settings in "Netzwerkverbindungen". Not so fine: As I told I have 2 NICs, one VIA onboard and an other 3C905CX-TX-M. Now in the "Netzwerkverbindungen" I found 5 entries: "Kabelnetzwerkverbindung VIA 100" "Kabelnetzwerkverbindung PCI 10/100" "Kabelnetzwerkverbindung 1" and 2 more entries with names I gave in former times to distinguish between the adapters (wonder where Ubuntu remembered this). I deleted the new "Kabelnetzwerkverbindung VIA 100" and "Kabelnetzwerkverbindung PCI 10/100", and changed the names of the other ones to "Kabelnetzwerkverbindung 1" -> "Kabel DHCP" "Kabel VIA 100 192.168.1.30" "Kabel 3C905CX PCI 10/100 192.168.0.30" (BTW, finding 5 connections I would be thankful to easily find out to which NIC those connections are assigned. As soon as the original name of the connection is edited in a way, that the information "VIA" oder PCI 10/100" is lost, I could not find any different hint - neither eth1 nor eth2 nor MAC nor the NIC-name to identify the adapter I am going to configure) I needed another reboot to regain network connectivity. Opening "System > Einstellungen > Netzwerkverbindungen" now I find already 6 connections (tab "Kabelgebunden"). "Kabel VIA 100 192.168.1.30" "Kabelnetzwerkverbindung VIA 100" "Kabel 3C905CX PCI 10/100 192.168.0.30" "Kabelnetzwerkverbindung PCI 10/100" "Kabel DHCP" "Kabelnetzwerkverbindung 1" With other words: As soon as the given default name to the connection is changed, ubuntu creates again new connections with the original default name in addition. To find out which one of this connections is really in use I opened "System > Systemverwaltung > Netzwerkdiagnose, tab "Geräte" (device?)" Here I find - apart from "loopback" only two "Netzwerkgeräte" "Ethernet-Schnittstelle (eth2)" and "Ethernet-Schnittstelle (eth1)" (ethernet-Interface?) but here I cannot identify a) which NIC corresponds to eth1 and eth2 respectively and b) which of the 6 "Netzwerkverbindungen" (network-connections) is active (bound to eth1 and eth2). Maybe I misunderstand here some fundamentals of network-configuration, but from my understanding a configured "Netzwerkverbindung" (given IP, network-mask, gateway, dns, ...) has to be bound to an adapter (NIC, network interface card) - and which configuration is bound to which adapter should be easily seen (somewhere :) ) Last but not least: On the "Netzwerkverbindungen", tab "Kabelgebunden" in column "zuletzt verwendet" (last used?) is for all 6 connections the same entry: "nie" (never?). Since just at the moment I am using at least one of this connections (or?) this cannot be true - or has completely another meaning. Gruß, Gerhard -- Networkconnections cannot be changed https://bugs.launchpad.net/bugs/505365 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
