[ntp:questions] Question regarding broadcast client
j.zornig at uq.edu.au
Tue Oct 21 08:11:29 UTC 2008
Sorry for the confusion David.
I have two similarly configured situations. The one I posted the
detailed data from was the easiest to physically get to, but had a
slightly different network to what I had described in the original
email. The client machine is connected to a variety of different IP
subnets including the one with the NTP appliance. It is supporting Xen
virtual machines, so the networks are virtual in a way.
It has the following config.
NTP appliance ip: 10.10.9.1 netmask:255.255.0.0
Client ip:10.10.1.9 netmask 255.255.0.0
The broadcast is to 10.10.255.255.
The excerts from the log relating to the ntp appliance network are:
addto_syslog: Listening on interface eth0, 10.10.1.9#123 Enabled
bind() fd 21, family 2, port 123, addr 172.27.128.254, flags=25
Added addr 172.27.128.254 to list of addresses
flags for fd 21: 04002
interface 4: fd=20, bfd=-1, name=eth0, flags=0x19, scope=0
sin=10.10.1.9 bcast=10.10.255.255, mask=255.255.0.0
bind() fd 26, family 2, port 123, addr 10.10.255.255, flags=8
Added addr 10.10.255.255 to list of addresses
flags for fd 26: 04002
Broadcast enabled on socket 26 for address 10.10.1.9
Modifying addr 10.10.1.9 in list of addresses
addto_syslog: io_setbclient: Opened broadcast client on interface 4,
I will try running ntpd in a domU virtual machine rather than the dom0
host and see if this makes a difference.
On 21/10/2008, at 4:53 PM, David Woolley wrote:
> John Zornig wrote:
>> interface 7: fd=23, bfd=-1, name=eth1, flags=0x19, scope=0
>> sin=10.1.1.9 bcast=10.1.1.255, mask=255.255.255.0
> It's failed to find the interface on which you are listening. Why so
> many? Is the target interface real?
> I seem to remember there are some issues with virtual interfaces on
> questions mailing list
> questions at lists.ntp.org
Specialist Systems Analyst
Australian Access Federation
Strategic Technologies Group
Information Technology Services (ITS)
The University of Queensland
Brisbane Qld, 4072
Ph: +61 7 336 54288
Mob: +61 434 351 532
j.zornig at uq.edu.au
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