Re: [Fed-Talk] OS X chatting with DNS server via port 5353
Re: [Fed-Talk] OS X chatting with DNS server via port 5353
- Subject: Re: [Fed-Talk] OS X chatting with DNS server via port 5353
- From: "Timothy J. Miller" <email@hidden>
- Date: Thu, 15 Mar 2007 15:00:36 -0500
Michael wrote:
Yes, I use another program but this issue I'm looking at is not straight
Bonjour, it's using port 5353 to send something to the DNS servers not
broadcast addresses.
Send me a pcap (be sure to set the snaplen to 1500 bytes) and I'll be
happy to take a look at it.
The services advertised only account for about half of the traffic, if I
have iTunes configured with sharing off why should it be broadcasting
Bonjour traffic, it does not have any services it's advertising and it's
not looking for any advertised services.
Bonjour broadcasts on a backoff & retry schedule in order to query
neighbors about new services. When a Bonjour-enabled service comes
online it similarly broadcasts its presence. Both are done because the
transport is not reliable.
-- Tim
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