On 2021-01-29, Grant Taylor <gtay...@gentoo.tnetconsulting.net> wrote:
> My understanding -- which may be wrong, and please correct me if you > think it is -- is that this special route (#2) is how the kernel sends > the entire 127/8 network to the lo adapter, even if the IP addresses > aren't bound to the adapter. I think that's probably right. I had never used the 'ip route' command like that and was unaware that route existed. > Now, as for things receiving the connections, I think it is highly > dependent on if the thing is listening to 0.0.0.0 or specific IP > addresses. Because if it's listening to 0.0.0.0, I think it will > happily serve connections to other addresses in 127/8. Yes, that's correct. [I just tested it] > If it's listening to explicitly 127.0.0.1, then it likely will not > serve connections to other addresses in 127/8. Also correct. -- Grant
