select a.IP_Addr
, concat_ws(' ', a.Tool, b.Tool) as Tool
from table1 as a inner join
table2 as b on a.IP_Addr = b.IP_Addr
Or if you want 3 columns
select a.IP_Addr
, a.Tool as Tool1
, b.Tool as Tool2
from table1 as a inner join
table2 as b on a.IP_Addr = b.IP_Addr