em1 network

   On Linux Fedora 15, the eth0 now replace with em1for built-in network card on the system.  The configuration file of these em1still inside the  /etc/sysconfig/network-scripts/ directory.  To view or edit the em1 network card configuration(ifcfg-em1), use the NetworkManager tool nm-connection-editor command, or edit these ifcfg-em1 directly (not recommend)

em1 network configuration file

The example of em1 network configuration file.

[root@fedora ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE="em1"
ONBOOT="no"
NM_CONTROLLED="yes"
TYPE=Ethernet
BOOTPROTO=none
IPADDR0=172.16.165.5
PREFIX0=24
GATEWAY0=172.16.165.9
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System em1"
UUID=1dad842d-1912-ef5a-a43a-bc238fb267e7
DNS1=172.16.165.9
HWADDR=00:1E:90:E5:83:3D
[root@fedora ~]#