environment :windows
work cases.
socket bind nic1 => get external ip => work => confirm ! I got the external ip for nic1.
socket bind nic2 => get external ip => work => confirm ! I got the external ip for nic2.
both nic(s) have default route, and nic2 has lower metric.
how ever, when I run tun.
tun was configure has lowest metric and also has default route. socket bind nic1 => get external ip => not work！ socket bind nic2 => get external ip => not work!
I readed more informations and all says the source ip can not chooose ougoing network nic, but why it works without tun.
I am confusing , thank advance for any help.
