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| yann |
 Posted: Tue May 29, 2012 5:19 am |
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Joined: 24 May 2012
Posts: 2
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Hi.
I used multicast(ipv4) by erlang, my code is below.
gen_udp:open(?MULTICAST_PORT, [binary, {reuseaddr, true}, {ip, ?MULTICAST_ADDR}, {add_membership, {?MULTICAST_ADDR, Address}}, multicast_ttl, ?MULTICAST_TTL}]).
?MULTICAST_ADDR and Address is both ipv4 address.
It is working good.
and now, I will use multicast by ipv6,
but above sentence is not work. (I changed the above address to ipv6 address)
this is the error code: {error,badarg}.
so, I saw the source, and follow the inet.erl -> prim_inet.erl.
and, I founded that the function prim_inet:is_sockopt_val() is not work. (error is caused "add_membership" option)
there is a code in prim_inet.erl:
type_value_2(ip,{A,B,C,D}) when ?ip(A,B,C,D) -> true;
but I think we need a code like this:
type_value_2(ip, {A,B,C,D,E,F,G,H}) when ?ip6(...) -> true;
Do you have any experience using ipv6 multicast?
How can I use erlang for this case?
Thank you for your reply. |
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