Remove current DHCP dynamic lease table (useful when changes static DHCP assignments):
rm /tmp/dhcp.leases
List packages which can be upgraded:
opkg update
opkg list-upgradable
opkg list-upgradable
Upgrade all upgradable packages:
opkg update
opkg list-upgradable | awk '{ print $1 }' | xargs opkg upgrade
opkg list-upgradable | awk '{ print $1 }' | xargs opkg upgrade