[erlang-questions] : Broken ipv6 behavior?

Matthew Dempsky <>
Wed Apr 9 20:23:46 CEST 2008


On Wed, Apr 9, 2008 at 3:41 AM, Matthew Dempsky <> wrote:
>  Testing at home with OS X (IPv6 link-local access only), I get
>  {error,notfound} with or without {inet6, true}.
>
>  ipv6.google.com's AAAA records still resolve fine with dig/host/etc.

I see the same behavior with a globally routable local IPv6 address.

:~$ erl
Erlang (BEAM) emulator version 5.6.1 [source] [smp:2]
[async-threads:0] [kernel-poll:false]

Eshell V5.6.1  (abort with ^G)
1> inet_gethost_native:control({debug_level,4}).
ok
2> inet_gethost[68255] (DEBUG):debug_level = 4
inet_gethost_native:gethostbyname("ipv6.google.com", inet6).
inet_gethost[68255] (DEBUG):Saved domainname .google.com.
inet_gethost[68255] (DEBUG):Created worker[68256] with fd 3
inet_gethost[68255] (DEBUG):Saved domainname .google.com.
inet_gethost[68256] (DEBUG):Worker got request, op = 1, proto = 2,
data = ipv6.google.com.
{error,notfound}
3> ets:tab2list(inet_db).
[{socks5_noproxy,[]},
 {res_recurse,1},
 {res_id,0},
 {hostname,"pollux"},
 {res_alt_ns,[]},
 {cache_refresh_interval,3600000},
 {res_inet6,false},
 {socks5_port,1080},
 {socks5_methods,[none]},
 {res_timeout,2000},
 {cache_size,100},
 {res_domain,"local"},
 {res_retry,3},
 {res_ns,[]},
 {res_lookup,[native,file]},
 {sctp_module,inet_sctp},
 {udp_module,inet_udp},
 {tcp_module,inet_tcp},
 {socks5_server,[]},
 {res_search,["local"]},
 {res_usevc,false}]
4> ets:tab2list(inet_hosts).
[{{10,0,1,195},inet,["pollux.local","pollux"]}]



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