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Date:      Mon, 24 Feb 2003 12:28:36 +1100
From:      Gregory Bond <gnb@itga.com.au>
To:        stable@freebsd.org
Subject:   ntp broadcast mode
Message-ID:  <200302240128.MAA29457@lightning.itga.com.au>

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Has anyone got NTP broadcast mode working?

My server has "broadcast x.y.z.255 ttl 4" line. I see the packets at the client
machine with tcpdump. 

12:28:12.348089 melfw.itga.com.au.ntp > 192.168.71.255.ntp:  v4 bcast strat 2 poll 6 prec -28 [tos 0x10] 

I run ntp with "ntp -dddd -n -b -p <pidfile> -f <driftfile>"  (with no ntp.conf
file) and I see in the ntp debug that it is reading the broadcast NTP packet.
	input_handler: if=1 fd=7 length 48 from c0a847ef 192.168.71.239
	receive: at 241 192.168.71.163<-192.168.71.239 restrict 00
	receive: at 241 192.168.71.163<-192.168.71.239 mode 5 code 5
But the client never associates with the server.

"What we have here is a failure to associate!"

[Both machines are recent 4-Stable, sometime after 4.7R, tho I also fail to 
associate with a Solaris client.]

Any clues?




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