Bruce Dubbs wrote:
Bruce Dubbs wrote:
Tim Tassonis wrote:
Hi all
I would like to create an alias interface in the form of eth0:0 to set a
a second ip address on the interface. I tried the (obvious):
cat > /etc/sysconfig/ifconfig.eth0:0 << EOF
ONBOOT="yes"
IFACE="eth0:0"
SERVICE="ipv4-static"
IP="192.168.219.221"
GATEWAY="192.168.219.1"
PREFIX="24"
EOF
I'll post a revised script that you can use tomorrow.
It was too easy. Try the included script. It goes in /lib/lsb/
Use:
cat > /etc/sysconfig/ifconfig.eth0:0 << EOF
ONBOOT=yes
IFACE=eth0
LABEL=eth0:0
SERVICE=ipv4-static
IP=192.168.219.221
PREFIX=24
BROADCAST=192.168.219.255
EOF
Note1: No GATEWAY, but you can set up a static route if you desire.
Note2: Quotes are optional around the values. The only time they would
be needed is if there is a space needed like in:
DHCP_START="-b -q"
I need to update BLFS to be consistent.
-- Bruce
#!/bin/sh
########################################################################
# Begin /lib/services/ipv4-static
#
# Description : IPV4 Static Boot Script
#
# Authors : Nathan Coulson - [email protected]
# Kevin P. Fleming - [email protected]
# Update : Bruce Dubbs - [email protected]
#
# Version : LFS 7.0
#
########################################################################
. /lib/lsb/init-functions
. ${IFCONFIG}
if [ -z "${IP}" ]; then
log_failure_msg "\nIP variable missing from ${IFCONFIG}, cannot continue."
exit 1
fi
if [ -z "${PREFIX}" -a -z "${PEER}" ]; then
log_warning_msg "\nPREFIX variable missing from ${IFCONFIG}, assuming 24."
PREFIX=24
args="${args} ${IP}/${PREFIX}"
elif [ -n "${PREFIX}" -a -n "${PEER}" ]; then
log_failure_msg "\nPREFIX and PEER both specified in ${IFCONFIG}, cannot
continue."
exit 1
elif [ -n "${PREFIX}" ]; then
args="${args} ${IP}/${PREFIX}"
elif [ -n "${PEER}" ]; then
args="${args} ${IP} peer ${PEER}"
fi
if [ -n "${LABEL}" ]; then
args="${args} label ${LABEL}"
fi
if [ -n "${BROADCAST}" ]; then
args="${args} broadcast ${BROADCAST}"
fi
case "${2}" in
up)
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" == "" ]; then
# Cosmetic output not needed for multiple services
if ! $(echo ${SERVICE} | grep -q " "); then
log_info_msg2 "\n" # Terminate the previous message
fi
log_info_msg "Adding IPv4 address ${IP} to the ${1} interface..."
ip addr add ${args} dev ${1}
evaluate_retval
else
log_warning_msg "Cannot add IPv4 address ${IP} to ${1}. Already
present."
fi
;;
down)
if [ "$(ip addr show ${1} 2>/dev/null | grep ${IP}/)" != "" ]; then
log_info_msg "Removing IPv4 address ${IP} from the ${1} interface..."
ip addr del ${args} dev ${1}
evaluate_retval
fi
if [ -n "${GATEWAY}" ]; then
# Only remove the gateway if ther are no remaining ipv4 addresses
if [ "$(ip addr show ${1} 2>/dev/null | grep 'inet ')" != "" ]; then
log_info_msg "Removing default gateway..."
ip route del default
evaluate_retval
fi
fi
;;
*)
echo "Usage: ${0} [interface] {up|down}"
exit 1
;;
esac
# End /lib/services/ipv4-static
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