Re: question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-25 Thread Andrew Lunn
> Otherwise the host can't send IGMP leave message when it leaves the > group because the im->reporter is 0. Leave is optional for IGMP v2, so net sending it is fine. And only a querier is going to take any notice of it. What happens when you have a querier in your network and you are using IGMPv

Re: question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-25 Thread Dongpo Li
On 2016/10/25 15:39, Andrew Lunn wrote: > On Tue, Oct 25, 2016 at 09:13:54AM +0800, Dongpo Li wrote: >> Hi Andrew, >> >> On 2016/10/24 23:32, Andrew Lunn wrote: >>> On Mon, Oct 24, 2016 at 07:50:12PM +0800, Dongpo Li wrote: Hello We encountered a multicast problem when two set-top

Re: question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-25 Thread Andrew Lunn
On Tue, Oct 25, 2016 at 09:13:54AM +0800, Dongpo Li wrote: > Hi Andrew, > > On 2016/10/24 23:32, Andrew Lunn wrote: > > On Mon, Oct 24, 2016 at 07:50:12PM +0800, Dongpo Li wrote: > >> Hello > >> > >> We encountered a multicast problem when two set-top box(STB) join the same > >> multicast group a

Re: question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-24 Thread Dongpo Li
Hi Andrew, On 2016/10/24 23:32, Andrew Lunn wrote: > On Mon, Oct 24, 2016 at 07:50:12PM +0800, Dongpo Li wrote: >> Hello >> >> We encountered a multicast problem when two set-top box(STB) join the same >> multicast group and leave. >> The two boxes can join the same multicast group >> but only on

Re: question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-24 Thread Andrew Lunn
On Mon, Oct 24, 2016 at 07:50:12PM +0800, Dongpo Li wrote: > Hello > > We encountered a multicast problem when two set-top box(STB) join the same > multicast group and leave. > The two boxes can join the same multicast group > but only one box can send the IGMP leave group message when leave, > t

question about function igmp_stop_timer() in net/ipv4/igmp.c

2016-10-24 Thread Dongpo Li
Hello We encountered a multicast problem when two set-top box(STB) join the same multicast group and leave. The two boxes can join the same multicast group but only one box can send the IGMP leave group message when leave, the other box does not send the IGMP leave message. Our boxes use the IGMP