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# $QuaggaId: $Format:%an, %ai, %h$ $
#
# The Linux Kernel MFC (Multicast Forwarding Cache)
#
# Check Linux kernel multicast interfaces:
cat /proc/net/dev_mcast
# Check that interface eth0 is forwarding multicast:
cat /proc/sys/net/ipv4/conf/eth0/mc_forwarding
# Check Linux kernel multicast VIFs:
cat /proc/net/ip_mr_vif
Interface BytesIn PktsIn BytesOut PktsOut Flags Local Remote
# Check Linux kernel MFC:
# Oifs format = vifi:TTL
cat /proc/net/ip_mr_cache
Group Origin Iif Pkts Bytes Wrong Oifs
# iproute2 can display the MFC:
ip mroute show
(2.2.2.2, 239.2.2.2) Iif: eth1 Oifs: eth0
# -- end-of-file --
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