fi
N_ITEMS=$((CLONE_SEQ_END - CLONE_SEQ_BEGIN + 1))
+[ "$N_ITEMS" -lt 1 ] && _exit "Initial sequence ($CLONE_SEQ_BEGIN) provided must be under final sequence value ($CLONE_SEQ_END) !!"
+[ "$CLONE_SEQ_END" -gt "99999999" ] && echo "Warning: some sequence value in range provided overflows __SEQ8__ and derived variables (__IPV4__ and __IPV4HEX__). Be care about using them ..."
+
if [ -z "$N_GROUPS" ]
then
N_GROUPS=$((N_ITEMS/25))