feat(tun): route all on linux #2273

Job	Run time
x86_64-unknown-linux-gnu	13m 10s
i686-unknown-linux-gnu	13m 25s
x86_64-unknown-linux-gnu-static-crt	12m 36s
x86_64-unknown-linux-musl	12m 41s
i686-unknown-linux-gnu-static-crt	13m 36s
aarch64-unknown-linux-gnu	14m 5s
armv7-unknown-linux-gnueabi	13m 43s
armv7-unknown-linux-gnueabihf	14m 10s
aarch64-unknown-linux-gnu-static-crt	14m 1s
aarch64-unknown-linux-musl	13m 39s
armv7-unknown-linux-gnueabi-static-crt	13m 58s
armv7-unknown-linux-musleabihf	14m 39s
x86_64-pc-windows-msvc	24m 29s
i686-pc-windows-msvc	20m 13s
x86_64-pc-windows-msvc-static-crt	21m 37s
i686-pc-windows-msvc-static-crt	23m 35s
x86_64-apple-darwin	23m 18s
aarch64-apple-darwin	8m 22s
x86_64-apple-darwin-static-crt	29m 37s
aarch64-apple-darwin-static-crt	14m 35s
Docker Image	0s
Release	0s
	5h 29m 29s

Provide feedback