$ cat /etc/sysconfig/network-scripts/ifcfg-eth0-range0
IPADDR_START=10.77.23.65
IPADDR_END=10.77.23.68
NETMASK=255.255.255.0
BROADCAST=10.77.23.255
NO_ALIASROUTING=yes
CLONENUM_START=0
# ifup ifcfg-eth0-range0
# ifconfig -a
...
eth0:0 Link encap:Ethernet HWaddr 00:0C:29:1C:51:8A
inet addr:10.77.23.65 Bcast:10.77.23.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:185 Base address:0x2000
eth0:1 Link encap:Ethernet HWaddr 00:0C:29:1C:51:8A
inet addr:10.77.23.66 Bcast:10.77.23.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:185 Base address:0x2000
eth0:2 Link encap:Ethernet HWaddr 00:0C:29:1C:51:8A
inet addr:10.77.23.67 Bcast:10.77.23.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:185 Base address:0x2000
eth0:3 Link encap:Ethernet HWaddr 00:0C:29:1C:51:8A
inet addr:10.77.23.68 Bcast:10.77.23.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:185 Base address:0x2000
...