Re: [Qemu-devel] IPv6 support for -net user?
On Wed, Aug 29, 2012 at 04:43:18PM +0700, Ivan Shmakov wrote: I'm writing an iPXE mini-HOWTO (in Russian), using QEMU and -net user in examples (so that they're runnable by unprivileged users.) However, the QEMU documentation [1] seems to suggest that only IPv4 is implemented for -net user, which made me curious on whether the IPv6 support is planned to be added anytime soon? Personally, I'm interested mostly in QEMU sending router (prefix) advertisements to the “guest”, and forwarding TCP and UDP traffic, although support for recursive DNS discovery and DHCPv6 may also be nice to have. Jan Kiszka is the -net user maintainer, I have CCed him. I'm not aware of work to add IPv6 support to slirp. Someone would have to step up and submit patches :). You can still do unprivileged IPv6 networking with external DHCPv6, etc software: $ qemu -netdev socket,id=socket0,listen=127.0.0.1:1234 \ -device virtio-net-pci,netdev=socket0 The socket netdev tunnels traffic over a TCP or UDP socket. For TCP it prefixes each packet with the big-endian uint32_t length. For UDP no length header is necessary because packet boundaries are preserved. You could write your own code or find something that can speak with QEMU's -netdev socket. Stefan
Re: [Qemu-devel] IPv6 support for -net user?
On 2012-08-30 09:23, Stefan Hajnoczi wrote: On Wed, Aug 29, 2012 at 04:43:18PM +0700, Ivan Shmakov wrote: I'm writing an iPXE mini-HOWTO (in Russian), using QEMU and -net user in examples (so that they're runnable by unprivileged users.) However, the QEMU documentation [1] seems to suggest that only IPv4 is implemented for -net user, which made me curious on whether the IPv6 support is planned to be added anytime soon? Personally, I'm interested mostly in QEMU sending router (prefix) advertisements to the “guest”, and forwarding TCP and UDP traffic, although support for recursive DNS discovery and DHCPv6 may also be nice to have. Jan Kiszka is the -net user maintainer, I have CCed him. I'm not aware of work to add IPv6 support to slirp. Someone would have to step up and submit patches :). Yep, I'm also not aware of plans or even activities in this direction. Some refactoring will likely be required to make the IPv4-oriented stack ready for this. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux
[Qemu-devel] IPv6 support for -net user?
I'm writing an iPXE mini-HOWTO (in Russian), using QEMU and -net user in examples (so that they're runnable by unprivileged users.) However, the QEMU documentation [1] seems to suggest that only IPv4 is implemented for -net user, which made me curious on whether the IPv6 support is planned to be added anytime soon? Personally, I'm interested mostly in QEMU sending router (prefix) advertisements to the “guest”, and forwarding TCP and UDP traffic, although support for recursive DNS discovery and DHCPv6 may also be nice to have. TIA. PS. I hope to announce the mini-HOWTO itself later this week, in both the iPXE [2] and planning-ru@ [3] mailing lists. [1] http://qemu.weilnetz.de/qemu-doc.html [2] http://dir.gmane.org/gmane.network.ipxe.devel/ [3] http://dir.gmane.org/gmane.user-groups.foss.sfd.planning.ru/ -- FSF associate member #7257 http://sf-day.org/
