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Re: LinkLocal Address ( InetAddress.getByName throws UnknownHost Exception )

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From	Lewis Bloch <lewisbloch@google.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: LinkLocal Address ( InetAddress.getByName throws UnknownHost Exception )
Date	Fri, 17 Jun 2011 06:27:32 -0700 (PDT)
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On Jun 14, 11:15 pm, saggar <sunil.sag...@gmail.com> wrote:
> Hi,
>
> I used the following code to create a InetAddress from lilnklocal
> address ( returned by getifaddrs function).
>    try{
>         InetAddress add =
> InetAddress.getByName("fe80::216:3eff:fe38:74e8%eth0");
>      }
>      catch(UnknownHostException uhe){
>         System.out.println("Caught unknownhost exception ");
>         System.out.println("Message: "+uhe.getMessage());
>         uhe.printStackTrace();
>     }
>
> But it fails with the following message.
>
> java.net.UnknownHostException: no scope_id found
>         at java.net.Inet6Address.deriveNumericScope(Inet6Address.java:
> 358)
>         at java.net.Inet6Address.initif(Inet6Address.java:321)
>         at java.net.Inet6Address.initstr(Inet6Address.java:306)
>         at java.net.Inet6Address.<init>(Inet6Address.java:232)
>         at java.net.InetAddress.getAllByName(InetAddress.java:1062)
>         at java.net.InetAddress.getAllByName(InetAddress.java:1009)
>         at java.net.InetAddress.getByName(InetAddress.java:959)
>
> What could be the possible reasons for it ?  Is it specific to JDK
> version ?
>

The error message is quite clear - the DNS does not recognize the host
name.  What you passed to the call really doesn't look like a host
name, so that seems unsurprising.

--
Lew

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Thread

LinkLocal Address ( InetAddress.getByName throws UnknownHost Exception ) saggar <sunil.saggar@gmail.com> - 2011-06-14 23:15 -0700
  Re: LinkLocal Address ( InetAddress.getByName throws UnknownHost Exception ) Lewis Bloch <lewisbloch@google.com> - 2011-06-17 06:27 -0700
    Re: LinkLocal Address ( InetAddress.getByName throws UnknownHost Exception ) lewbloch <lewbloch@gmail.com> - 2011-06-17 06:33 -0700

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