pimd/LINUX_KERNEL_MROUTE_MFC

   1 #
   2 # The Linux Kernel MFC (Multicast Forwarding Cache)
   3 #
   4
   5 # Check Linux kernel multicast interfaces:
   6 cat /proc/net/dev_mcast
   7
   8 # Check that interface eth0 is forwarding multicast:
   9 cat /proc/sys/net/ipv4/conf/eth0/mc_forwarding
  10
  11 # Check Linux kernel multicast VIFs:
  12 cat /proc/net/ip_mr_vif
  13 Interface      BytesIn  PktsIn  BytesOut PktsOut Flags Local    Remote
  14
  15 # Check Linux kernel MFC:
  16 # Oifs format = vifi:TTL
  17 cat /proc/net/ip_mr_cache
  18 Group    Origin   Iif     Pkts    Bytes    Wrong Oifs
  19
  20 # iproute2 can display the MFC:
  21 ip mroute show
  22 (2.2.2.2, 239.2.2.2)             Iif: eth1       Oifs: eth0
  23
  24 # -- end-of-file --