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Re: What is the point of a host-reachability test that doesn't test the reachability of the host?
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Re: What is the point of a host-reachability test that doesn't test the reachability of the host?


  • Subject: Re: What is the point of a host-reachability test that doesn't test the reachability of the host?
  • From: John Joyce <email@hidden>
  • Date: Wed, 01 Jun 2011 19:36:53 -0500

> Thanks for the response, Greg.
>
>> There are circumstances where a subset of the Internet's hosts may be reachable. For example, you may be able to reach link-local names without a broader Internet connection. Or you may be able to reach a host behind a VPN only when the VPN is active. (I don't know what Reachability actually does in these cases, but it's the sort of thing that the API was designed to handle.)
>
> But since this test doesn't actually check the routes to these hosts,
> how would it be able to provide meaningful results even in these
> cases?
>
> I figured the specific-host test pinged the host.
> _______________________________________________

The docs say that it does not ping the host.
However, if you pass the host to the method, if you get a "maybe, try now" you can try the host in one shot in that method.

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References: 
 >What is the point of a host-reachability test that doesn't test the reachability of the host? (From: G S <email@hidden>)
 >Re: What is the point of a host-reachability test that doesn't test the reachability of the host? (From: Greg Parker <email@hidden>)
 >Re: What is the point of a host-reachability test that doesn't test the reachability of the host? (From: G S <email@hidden>)

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