zasedena IP številka v ClarkConnect gatewayu ?

no tako, ker ni nikjer na internetu rešitve sem se spustil v iskanje sporočila po linux fajlih in ga našel v:
ifup

tam je (med ostalim):
-----------------------------------------------------------------------------------------
# end dynamic device configuration
else
if [ -z "${IPADDR}" ]; then
# enable device without IP, useful for e.g. PPPoE
ip link set ${REALDEVICE} up
if [ "${NETWORKING_IPV6}" = "yes" ]; then
/etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}
fi
exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}
fi

expand_config

[ -n "${ARP}" ] && \
ip link set ${REALDEVICE} $(toggle_value arp $ARP)

if ! ip link set ${REALDEVICE} up ; then
echo $"Failed to bring up ${DEVICE}."
exit 1
fi

if ! arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${IPADDR} ; then
echo $"Error, some other host already uses address ${IPADDR}."
exit 1
fi

if [ "${DEVICE}" = "lo" ]; then
SCOPE="scope host"
else
-----------------------------------------------------------------------------------------

in tisto vrstico samo # spredaj postavim in posnamem - to je to, deluje