CC'ing SLIRP and net maintainer. On Sun, 25 Jun 2023 22:58:36 -0700 Felix Wu <f...@google.com> wrote:
> Hi all, > > TL,DR: I am working on QEMU ipv6 guestfwd feature and finished coding, and > would like to learn the best practice to test it. > Context: in slirp side this task is tracking by [1]. > Currently, I have done following: > i. made char parse + guestfwd functions happy with ipv6 address. > ii. enabled debug print and made sure the ip and port are inserted into the > forward list in libslirp. > To sufficiently verify it's working, I do have three questions: > 1. I want to forward a port in the guest (OS in QEMU) to a port 22 on the > host OS, and ssh from guest back to host, > does this sound reasonable? If this is not a good idea, what method is > recommended? > 2. I want to understand what ip I should use. Currently I have following > formats for the QEMU invocation in ipv6: > ``` > guestfwd=tcp:[::1]:1234-tcp:[my:host:ip:from:ifconfig]:22 > ``` > I know the general form is `guestfwd=tcp:server:port-dev`, where > server:port is for guest, dev is for host. > Adding [] in my implementation will let QEMU know it's ipv6. > Is the aforementioned invocation correct? Or in this case [::1] is the > local host address and I should put qemu address > for it instead? > 3. Is there a default ipv6 address for QEMU instance? I think I need it in > the invocation. > > Thanks in advance! Felix > > [1]. https://gitlab.freedesktop.org/slirp/libslirp/-/issues/67
pgp7peayMUmmF.pgp
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