Matching utilities with their functions
netstat: Displays TCP/IP interface information, interface statistics, and routing tables
arp: Sets and displays information binding host interfaces to IP addresses
ifconfig: Configures and displays interface parameters such as IP address and netmask
ping: Tests network connections and their quality by sending small test packets over the network
The netstat -r command provides the same output as the /sbin/route command.
Support for device Identification using WWIDs during installation
Fibre Channel and Serial Attached SCSI (SAS) devices can be now specified by a World Wide Name (WWN) or a World Wide Identifier (WWID) for unattended installations.
WWN is part of the IEEE standard which makes it easier to identify storage devices during installation for users utilizing Storage Area Networks (SAN) and other advanced network topologies.
When a storage device is attached to a server using multiple physical paths for redundancy or improved performance, WWN for any of these paths is sufficient to identify the device.
Initial RAM disk file
The initial RAM disk file on 64-bit PowerPC and 64-bit IBM POWER Series systems is now named initrd.img. In previous releases, it was named ramdisk.image.gz.
Static IPv6 address support for network installation In Red Hat Enterprise Linux 6.2, a static IPv6 address can be specified for the ipv6 boot option for network installations.