Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-13 Thread Ian Campbell
On Wed, 2014-02-12 at 14:05 -0800, Luis R. Rodriguez wrote: > > I meant the PV protocol extension which allows guests (netfront) to > > register to receive multicast frames across the PV ring -- i.e. for > > multicast to work from the guests PoV. > > Not quite sure I understand, ipv6 works on gues

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Luis R. Rodriguez
On Wed, Feb 12, 2014 at 8:27 PM, Luis R. Rodriguez wrote: > I have a test patch that now works that restricts xen-netback from > getting any IPv4 and IPv6 addresses, and disables multicast. With this > set in place the xen-frontend still gets IPv4 and IPv6 addresses and > Multicast still works. Th

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Luis R. Rodriguez
On Wed, Feb 12, 2014 at 2:05 PM, Luis R. Rodriguez wrote: > We have to be careful for sure, I'll try to test all cases including > kvm, but architecturally as I see it so far these things are simply > exchanging over data through their respective backend channels, I know > ipv6 interfaces are unus

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Luis R. Rodriguez
On Wed, Feb 12, 2014 at 3:15 AM, Ian Campbell wrote: > On Tue, 2014-02-11 at 13:53 -0800, Luis R. Rodriguez wrote: >> Cc'ing kvm folks as they may have a shared interest on the shared >> physical case with the bridge (non NAT). >> >> On Tue, Feb 11, 2014 at 12:43 AM, Ian Campbell >> wrote: >> >

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Luis R. Rodriguez
On Wed, Feb 12, 2014 at 9:17 AM, Bill Fink wrote: > On Wed, 12 Feb 2014, Ian Campbell wrote: >> IOW -- enabling/disabling multicast seems to me to be an odd proxy for >> disabling SLAAC or DAD and AIUI your patch fixes the opposite case, >> which is to avoid SLAAC and DAD on interfaces which don't

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Bill Fink
On Wed, 12 Feb 2014, Ian Campbell wrote: > On Tue, 2014-02-11 at 13:53 -0800, Luis R. Rodriguez wrote: > > Cc'ing kvm folks as they may have a shared interest on the shared > > physical case with the bridge (non NAT). > > > > On Tue, Feb 11, 2014 at 12:43 AM, Ian Campbell > > wrote: > > > On Mo

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Wei Liu
On Tue, Feb 11, 2014 at 01:53:26PM -0800, Luis R. Rodriguez wrote: > Cc'ing kvm folks as they may have a shared interest on the shared > physical case with the bridge (non NAT). > > On Tue, Feb 11, 2014 at 12:43 AM, Ian Campbell > wrote: > > On Mon, 2014-02-10 at 14:29 -0800, Luis R. Rodriguez w

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-12 Thread Ian Campbell
On Tue, 2014-02-11 at 13:53 -0800, Luis R. Rodriguez wrote: > Cc'ing kvm folks as they may have a shared interest on the shared > physical case with the bridge (non NAT). > > On Tue, Feb 11, 2014 at 12:43 AM, Ian Campbell > wrote: > > On Mon, 2014-02-10 at 14:29 -0800, Luis R. Rodriguez wrote: >

Re: [RFC 2/2] xen-netback: disable multicast and use a random hw MAC address

2014-02-11 Thread Luis R. Rodriguez
Cc'ing kvm folks as they may have a shared interest on the shared physical case with the bridge (non NAT). On Tue, Feb 11, 2014 at 12:43 AM, Ian Campbell wrote: > On Mon, 2014-02-10 at 14:29 -0800, Luis R. Rodriguez wrote: >> From: "Luis R. Rodriguez" >> >> Although the xen-netback interfaces do