Red Hat ENTERPRISE LINUX 5 - DEPLOYMENT Deployment Manual page 181

parameters are identical to those used for bonding devices in /sys/class/net/<bonding
device>/bonding, and the module parameters for the bonding driver as described in bonding
Module Directives.
This configuration method is used so that multiple bonding devices can have different
configurations. If you use BONDING_OPTS in ifcfg-<name>, do not use /etc/modprobe.conf
to specify options for the bonding device.
BOOTPROTO=<protocol>
where <protocol> is one of the following:
• none — No boot-time protocol should be used.
• bootp — The BOOTP protocol should be used.
• dhcp — The DHCP protocol should be used.
BROADCAST=<address>
where <address> is the broadcast address. This directive is deprecated, as the value is
calculated automatically with ifcalc.
DEVICE=<name>
where <name> is the name of the physical device (except for dynamically-allocated PPP devices
where it is the logical name).
DHCP_HOSTNAME
Use this option only if the DHCP server requires the client to specify a hostname before receiving
an IP address.
DNS{1,2}=<address>
where <address> is a name server address to be placed in /etc/resolv.conf if the PEERDNS
directive is set to yes.
ETHTOOL_OPTS=<options>
where <options> are any device-specific options supported by ethtool. For example, if you
wanted to force 100Mb, full duplex:
ETHTOOL_OPTS="autoneg off speed 100 duplex full"
Instead of a custom initscript, use ETHTOOL_OPTS to set the interface speed and duplex settings.
Custom initscripts run outside of the network init script lead to unpredictable results during a post-
boot network service restart.
Note
Changing speed or duplex settings almost always requires disabling autonegotiation
with the autoneg off option. This needs to be stated first, as the option entries are
order-dependent.
GATEWAY=<address>
where <address> is the IP address of the network router or gateway device (if any).
Ethernet Interfaces
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