Is it possible to configure an IPv6 multicast address to a NIC?

Asked Oct 16 '18 at 21:30

Active Oct 17 '18 at 15:39

Viewed 506 times

Is it possible to configure an address from ff00::/8 address block to a NIC? Looks like it is not possible:

# ip a add ff99::1/8 dev p2p1
RTNETLINK answers: Cannot assign requested address
# 
# ip maddr add ff99::1/8 dev p2p1
"ff99" is invalid lladdr.
Error: "ff99" is not a legal ll address.
#

edited Oct 17 '18 at 15:39

kasperd

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asked Oct 16 '18 at 21:30

Martin

1

IPv6 multicast doesn't work that way. What are you actually trying to do? – Michael Hampton Oct 16 '18 at 22:04
http://ipv6friday.org/blog/2011/12/ipv6-multicast/ – Broco Oct 17 '18 at 15:42
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`ff99::1` is not even a real IPv6 multicast address. The scope (`9`) in that address is unassigned, and a reserved flag is set. – Ron Maupin Oct 17 '18 at 15:47
`ip maddress add` only understands IPv4 multicast addresses anyway, from a quick look at the [source code](https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/tree/ip/ipmaddr.c). – Michael Hampton Oct 17 '18 at 16:15

Is it possible to configure an IPv6 multicast address to a NIC?

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