On Tuesday 10 April 2007, Matthew Saltzman wrote: > On Tue, 10 Apr 2007, Anne Wilson wrote: > > On Tuesday 10 April 2007 20:11, Matthew Saltzman wrote: > >> On Tue, 10 Apr 2007, Anne Wilson wrote: > >>> On Tuesday 10 April 2007, Tim wrote: > >>>> On Tue, 2007-04-10 at 11:08 -0700, Knute Johnson wrote: > >>>>> I've got an FC6 box that I'm having some trouble getting the network > >>>>> configured correctly. I keep getting the error below when eth0 is > >>>>> started. This happens on reboot or if I attempt to restart the > >>>>> network. > >>>>> Networking works but I keep getting the error message. Any ideas > >>>>> where I've gone wrong? > >>>>> > >>>>> [root@knute knute]# /sbin/service network restart > >>>>> Shutting down interface eth0: [ OK ] > >>>>> Shutting down loopback interface: [ OK ] > >>>>> SIOCGIFFLAGS: No such device > >>>>> Bringing up loopback interface: [ OK ] > >>>>> Bringing up interface eth0: sysfs class device: Permission denied > >>>>> Error, some other host already uses address 192.168.3.5. > >>>>> [FAILED] > >>>> > >>>> Taking the error notice at face value, you've got some other device on > >>>> the same network already using that address. You can't do that, and > >>>> it checks when attempting to bring an interface on-line. Change one > >>>> of them. > >>> > >>> Maybe something on the network grabbed the address via dhcp? > >> > >> Maybe Tim should be getting *his* IP via DHCP? > > > > Maybe, but not necessarily. It's possible to have both on one LAN. On > > this LAN, for instance, we prefer to use static IP. All our boxes have > > static addresses. However one work laptop needs dhcp to access a company > > network. We tell the router to reserve the addresses that we use > > statically, and it issues addresses outside those to a dhcp box. > > Sure, that's reasonable. But a common cause of duplicate addresses is > attempting to assign onesself an address manually from a range managed by > a DHCP server. My impression is that it is becoming more common to manage > large networks with DHCP even when the machines are on the networks > permanently, just because the centralized management is simpler for the > admin. > Then again, some of the cheaper routers don't allow you to reserve addresses, which makes it very dubious to have mixed static and dhcp on such a LAN. Anne
