> Hmm, RFC3376 says:
>
> 4.2.13. IP Source Addresses for Reports
>
>An IGMP report is sent with a valid IP source address for the
>destination subnet. The 0.0.0.0 source address may be used by a
>system that has not yet acquired an IP address. Note that the
>0.0.0.0 source addre
On Sat, Dec 9, 2017 at 8:01 AM, Andrew Lunn wrote:
> The choice of IP address for IGMP in Linux is 'interesting'. Try with
> multiple IP addresses on the interfaces, addresses with different
> scopes, etc. I've seen it reply to the querier using an address from
> a different subnet to the incomi
On Fri, Dec 08, 2017 at 09:25:58PM -0800, Kevin Cernekee wrote:
> Closing a multicast socket after the final IPv4 address is deleted
> from an interface will generate a membership report that uses the
> source IP from a different interface. The following test script, run
> from an isolated netns,
Closing a multicast socket after the final IPv4 address is deleted
from an interface will generate a membership report that uses the
source IP from a different interface. The following test script, run
from an isolated netns, reproduces the issue:
#!/bin/bash
ip link add dummy0 type dumm
