This is linux local route table:

#ip route show table local
broadcast 127.0.0.0 dev lo proto kernel scope link src 127.0.0.1 
local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1 
local 127.0.0.1 dev lo proto kernel scope host src 127.0.0.1 
broadcast 127.255.255.255 dev lo proto kernel scope link src 127.0.0.1 
broadcast 192.168.50.0 dev wlp4s0 proto kernel scope link src 192.168.50.136 
local 192.168.50.136 dev wlp4s0 proto kernel scope host src 192.168.50.136 

route table can be used to find the packet output interface, but what’s the function of local route table.

If I can know the address of 127.x.x.x from the first three lines use the lo port to transmit. what’s the meaning of

local 192.168.50.136 dev wlp4s0 proto kernel scope host src
192.168.50.136

Thanks.