Re: [PATCH net-next v2 0/3] Allow more than 255 IPv4 multicast interfaces

2020-09-10 Thread David Miller
From: Paul Davey Date: Tue, 8 Sep 2020 10:04:05 +1200 > Currently it is not possible to use more than 255 multicast interfaces > for IPv4 due to the format of the igmpmsg header which only has 8 bits > available for the VIF ID. There is space available in the igmpmsg > header to store the full

[PATCH net-next v2 0/3] Allow more than 255 IPv4 multicast interfaces

2020-09-07 Thread Paul Davey
Currently it is not possible to use more than 255 multicast interfaces for IPv4 due to the format of the igmpmsg header which only has 8 bits available for the VIF ID. There is space available in the igmpmsg header to store the full VIF ID in the form of an unused byte following the VIF ID field.