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Re: Proposed Update to Netconf Charter



Tom Petch wrote:

<inline>
Tom Petch

----- Original Message -----
From: "Faye Ly" <fayely@juniper.net>
To: "Andy Bierman" <ietf@andybierman.com>; "Sharon Chisholm"
<schishol@nortel.com>
Cc: <netconf@ops.ietf.org>
Sent: Wednesday, July 06, 2005 8:14 PM
Subject: RE: Proposed Update to Netconf Charter


Andy,

I agree with 'defining common authentication scheme for access control'
and also would like to see 'define a way to multiplex channels over a
single secured connection between manager and agent'.  The latter is
needed to support multiple management channels like notification,
syslog, image/file management and/or regular netconf.

This is to help lower the cost of configuring many secured connections
between manager and agent.

-faye

Common authentication implies that you are authenticating the same thing. SNMP,
because the operators wanted it, authenticates a 'principal' which may or may
not correspond to a human user, but is distinct from the platform which is
providing the other end of the connection. I think it easy, and at times too
simplistic, to think in terms of setting up a secure channel with, and
authenticating, a 'client' (or server) without realising that one should be
authenticating at a finer level of detail. The 'principals' for syslog, netconf
etc may be different even though they share a secure channel and platform.



Good points. I'll raise an even stronger concern...

SNMP has its own security model, which (IMO) is bloated and over-engineered.
I am strongly opposed to any integration between SNMP and NETCONF security
models because NETCONF is new and we should try not to ruin it so soon.
NETCONF is not SNMPv4 and never will be if I can help it, and its security
mechanisms should not be compromised to work well for SNMP (or SYSLOG or
anything else, other than NETCONF).


Andy


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