Dangi, Rajpal wrote:
What about the feature to host OpenSBC behind NAT/firewall?
I have tested OpenSBC in amazon EC2 cloud. OpenSBC is installed in a
virtual machine with a private IP address and Amazon exposes it through
a public interface with one to one port binding. I then set the
static media address parameter of OpenSBC to point to the public
interface. I was able to test this setup to be working. The
assumption here is that all traffic going to OpenSBC is coming from the
public side of the network. In this scenario, no feature request is
needed to fulfill it. It's already there.
The other scenario, which I think what you have in mind, is OpenSBC
acting as a bridge between a private network and a public network while
having itself bound by the same NAT firewall of the private network.
Given that your NAT/Firewall is also a one to one setup, calls coming
from the public space goinf to the public space would still work the way
it worked in the amazon EC2 setup. However the problem will arise if
the call is coming from the public side towards the private network.
OpenSBC would then need to determine when to rewrite the SDP using the
static media address and not. Given that we are able to do this,
OpenSBC should be able to bridge the NAT properly. This is always a
tricky setup because no two systems behave similarly in such cases.
There are also a lot of system specific behavior that are needed to be
addressed not to mention screwed up routing tables. Thus, this is into
feature that would be solved with a snap of a finger. I am sorry this
cannot make it to the final release of 1.1.5 or even promise that 1.1.6
will have this feature.
If you have this kind of setup... then go for an NAT devices with a
built-in ALG.
Joegen
Rajpal
-----Original Message-----
From: opensipstack-osbcdevel-bounces@lists.sourceforge.net
opensipstack-osbcdevel-bounces@lists.sourceforge.net On Behalf
Of Joegen E. Baclor
Sent: Tuesday, December 11, 2007 5:59 PM
To: opensipstack-devel@lists.sourceforge.net; listaopenSBC
Subject:
OpenSBC OpenSBC 1.1.6, Summary of Feature Requests and Bug
Reports
Hi Everyone,
I am intending to finalize 1.1.5 release before the year ends so we have
a clean slate for 1.1.6. If you have feature requests or bug fixes
which you think should be part of this release, please document them and
post them to the list ASAP. We are going to implement CVS branches
beginning 1.1.5 to allow bug fixes specific to a certain branch. There
will be some major architectural changes that will be implemented in
version 1.1.6 which might not be anymore compatible with the 1.1.5
branch. I will enumerate the pending feature requests I summarized
from previous post. Let me know if I missed smething
Pending Feature Requests:
1. Support for redirect in relay Routes - sammaladinna@velankani.com
2. Creation of folders (logs, registry, calea etc ) in places where
user has permission - H.Kropf
3. Rewriting of From URI - Warren Kreckler
4. Routing based on Packet Source - chris.veazey@gmail.com
5. Routing based on recipient NIC - Warren Kreckler
If I missed something feel free to reply inline.
Planned Features for 1.1.6
1. I have already announced the plan for a separate configuration
module on top of the current HTTP Admin.
2. We are also going to implement a separate media proxy application
to allow HA/Load Balancing of streams on top of the internal media proxy
implementation. This change would allow an SBC to use multiple
instances of external media proxies giving way to a higher volume
deployment.
3. We are also going to extract the Media Server Trunk and promote it
as a fully featured VXML Media Server allowing PBX developers to create
PBX applications using the OpenSIPStack Framework.
4. The plan to implement Diameter as the AAA implementation in OpenSBC.
5. Finally, the long awaited resurrection of the TCP and TLS
transports.
I have also Opened a new development effort in SourceForge called
Plugin++ (
http://sourceforge.net/projects/pluginpp ). This new
project will be the entry point of a planned Plugin Framework/API for
OpenSBC and other OpenSIPStack applications.
We are aiming for June 2008 as the ETC for the 1.1.6 release of
OpenSBC. We will come up with milestone releases for each
functionality.
-
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