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

From:
Lewis Bloch <lewisbloch@google.com>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 17 Jun 2011 06:27:32 -0700 (PDT)
Message-ID:
<7ae996e5-64a1-460a-963b-7659dadd90e2@d26g2000prn.googlegroups.com>
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:106=

2)

        at java.net.InetAddress.getAllByName(InetAddress.java:100=

9)

        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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