Unnecessary rant - Was: Re: USB networking in Ubuntu
Richard Cooke
richard.mallender at gmail.com
Wed Aug 6 13:24:15 CEST 2008
Aaron Sowry wrote:
>
> I know Ubuntu handles interfaces in a weird way and references them by
> MAC address. If Arne's suggestion doesn't help, run 'sudo ifconfig -a'
> at the terminal and post the output, along with the contents of
> /etc/iftab - you might find that the interface is not even called usb0.
> Aaron
>
richard at ubuntu:~$ sudo ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:50:8d:ef:d1:72
inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::250:8dff:feef:d172/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7280 errors:0 dropped:0 overruns:0 frame:0
TX packets:4710 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3353886 (3.1 MB) TX bytes:1267116 (1.2 MB)
Interrupt:22 Base address:0xb400
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:2570 errors:0 dropped:0 overruns:0 frame:0
TX packets:2570 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:128500 (125.4 KB) TX bytes:128500 (125.4 KB)
The /etc/iftab file strangely consists entirely of comments and looks like
this:
# This file is no longer used and has been automatically replaced.
# See /etc/udev/rules.d/70-persistent-net.rules for more information.
#
# This file assigns persistent names to network interfaces. See iftab(5).
#eth0 mac 00:50:8d:ef:d1:72
/etc/udev/rules.d/70-persistent-net.rules contains the following:
# This file maintains persistent names for network interfaces.
# See udev(7) for syntax.
#
# Entries are automatically added by the 75-persistent-net-generator.rules
# file; however you are also free to add your own entries.
# Converted from /etc/iftab on upgrade
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:50:8d:ef:d1:72",
ATTR{type}=="1", NAME="eth0"
--
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