igmp version force to vlan tagged interface not taking effect

Issue

• We are setting up igmp version = 2 for vlan tagged interfaces and the kernel seems to be setting v1 for the igmp version.

  net.ipv4.conf.eth4/401.force_igmp_version = 2
  net.ipv4.conf.eth5/501.force_igmp_version = 2
  
  
  
  
  [root@example ~]# cat /proc/net/igmp
  Idx     Device    : Count Querier       Group    Users Timer    Reporter
  1       lo        :     1      V2
                                  010000E0     1 0:00000000               0
  .......
  20      eth4.401  :     1      V1
                                  010000E0     1 0:00000000               0
  21      eth5.501  :     1      V1
                                  010000E0     1 0:00000000               0