howto/IPv6-Multicast.md
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# IPv6 Multicast
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-The following guide illustrates how to set up an IPv6 multicast router using [PIM-SM](https://en.wikipedia.org/wiki/Protocol_Independent_Multicast#Sparse_mode) (Protocol Independent Multicast in Sparse Mode) with your own personal multicast prefix.
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+The following guide illustrates how to set up an IPv6 multicast router using [PIM-SM](https://en.wikipedia.org/wiki/Protocol_Independent_Multicast#Sparse_mode) (Protocol Independent Multicast in Sparse Mode) with your own personal multicast prefix, using pim6sd.
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-[RFC8815](https://datatracker.ietf.org/doc/html/rfc8815) deprecated PIM-SM, please take a look at [the new multicast page about PIM-SSM](/howto/multicast).
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+Some people on dn42 also experimented with using FRR's PIM-SM implementation for **SSM** (source specific multicast) here: [multicast page about PIM-SSM](/howto/multicast). PIM-SSM is recommended by [RFC8815](https://datatracker.ietf.org/doc/html/rfc8815) for interdomain multicast, RFC8815 also deprecated interdomain PIM-ASM (any source multicast) (though PIM-ASM using [Embedded-RP](https://www.rfc-editor.org/rfc/rfc3956) for IPv6 multicast could maybe be a viable option on dn42?).
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## Quickstart
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