Re: Bonjour Via Peer-Peer WIFI - Reachability Issue
Re: Bonjour Via Peer-Peer WIFI - Reachability Issue
- Subject: Re: Bonjour Via Peer-Peer WIFI - Reachability Issue
- From: "Justin C. Walker" <email@hidden>
- Date: Tue, 11 Nov 2014 15:18:13 -0800
On Nov 11, 2014, at 13:54 , Jens Alfke wrote:
>
>> On Nov 11, 2014, at 9:59 AM, Quinn The Eskimo! <email@hidden> wrote:
>>
>> o reachability saying "no" doesn't guarantee that the connection will fail
>
> Can you elaborate on that? It's the part I don't understand. As I said above, I thought that a "no" meant the IP routing tables were telling me "you can't get there from here." In what cases would there be a false negative?
"Reachability" is at best a hint. You can't tell whether a remote site is reachable without actually trying to reach it. The routing table only gives you the address of the next hop (and rarely does it "know" that the next hop is working correctly). It doesn't tell you about the hop after that or the one after that.
HTH
Justin
--
Justin C. Walker, Curmudgeon at Large
Institute for the Absorption of Federal Funds
-----------
I'm beginning to like the cut of his jibberish.
-----------
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden