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