[6bone] IPv6 NTP testing

[Pim van Pelt]

On Wed, Aug 20, 2003 at 10:28:59AM -0400, Kimmo Suominen wrote:
| Let's see if I understood this correctly way back...
| 
| ntpd needs to send responses back using the same IP address that it
| received the original request on.  To track the addresses, it uses
| separate file descriptors.
I understand this, thanks for the explanation. It sounds like a good
approach, but I do not really want ntpd to bind (and service requests)
from just any IP address. Looking at my list:

| | udp4       0      0  127.0.0.1.123          *.*
| | udp6       0      0  ::1.123                *.*
localhost is not needed.
| | udp6       0      0  fe80:4::1.123          *.*
| | udp6       0      0  fe80:1::202:b3ff.123   *.*
linklocal is not needed.
| | udp6       0      0  2001:7b8:3:2c::5.123   *.*
This is actually 2001:7b8:3:2c::53 , an authoritative nameserver
| | udp6       0      0  2001:7b8:3:2c::1.123   *.*
This is actually 2001:7b8:3:2c::123 (ntp1.bit.nl), the one I'd like ntpd to use
| | udp6       0      0  2001:7b8:3:2c:20.123   *.*
This is the EUI64 address of the machine.
| | udp4       0      0  213.136.12.53.123      *.*
This is the IPv4 address for ntp1.bit.nl.
| | udp4       0      0  213.136.12.52.123      *.*
Caching nameserver .. no ntpd here!
| | udp4       0      0  213.136.12.51.123      *.*
Authoritative nameserver, .. no ntpd here!
| |
| | AND on the UDP unspecified address in both protocol families:
| | udp6       0      0  *.123                  *.*
| | udp4       0      0  *.123                  *.*
What good do these do if we already listen to specific IPs ?

What I'd like is some syntax on the command prompt to force binding of
IPs, such as ntpd -B [2001:7b8:3:2c::123] -B 213.136.12.53, making
the daemon keep its hands off of  IPs it should not be touching.

Anyone care to look into this .. ?
-- 
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Pim van Pelt                 Email: pim@ipng.nl
http://www.ipng.nl/             IPv6 Deployment
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