You can create new IP-based target portal groups in which to add and remove existing IP addresses.
-f forces the new group to be created, even if that terminates an existing session using one of the IP addresses being added to the group.
-t sets the target portal group tag to the specified value. In general, you should accept the default tag value.
tpgroup_name is the target portal group name.
IP_address is the list of IP addresses to include in the group, separated by spaces.