Yup.. I use Endian EFW (Community), in my case, also installed under VMware.    
Have been using 2.2 since May and just upgraded to 2.3 yesterday.   Works 
great.   I use OpenVPN to connect remote phones so the firewall doesn't really 
play a role for that.  I don't do too much with SipxBridge, but do have a  
gateway configured to connect to Acanac, a small ITSP out of Mississauga.  I 
use them primarily for testing configurations. 

 

By default, Endian will have the outbound firewall enabled.  Don't enable the 
SIP proxy in Endian.  All I need to do with Endian to connect to Acanac was to 
open up the outbound firewall (all ports, TCP/UDP) to the IP addresses Acanac 
provided me.  When Sipx registers with Acanac,  Endian automatically uses the 
allow established rules and creates the necessary NAT translations as ports are 
requested...  That was it for me..     

 

Dave B.

   

 

 

 

 

From: [email protected] 
[mailto:[email protected]] On Behalf Of Tony Graziano
Sent: October 29, 2009 6:09 AM
To: Picher, Michael
Cc: sipx-users
Subject: Re: [sipx-users] sipxecs behind endian firewall

 

Just to save you some trouble, Endian does not do symmetric nat at all. 

 

Symmetric NAT

§  Each request from the same internal IP address and port to a specific 
destination IP address and port is mapped to a unique external source IP 
address and port.

§  If the same internal host sends a packet even with the same source address 
and port but to a different destination, a different mapping is used.

§  Only an external host that receives a packet from an internal host can send 
a packet back.

 

It can do SNAT, nut this is not souce based NAT, it is softwires nat, which is 
used for encapsulation. Replacing it would be your best option. It it matter, 
pfsense has a vmware loadable image you can use, and is very easy on system 
resources.

 

 

 

On Thu, Oct 29, 2009 at 4:08 AM, Picher, Michael <[email protected]> 
wrote:

I have not tested that firewall personally.

As a general rule however, you would want to make sure and disable the
sip proxy in endian.

Mike


-----Original Message-----
From: [email protected]

[mailto:[email protected]] On Behalf Of Francis
Tinio
Sent: Thursday, October 29, 2009 3:00 AM
To: sipx-users
Subject: [sipx-users] sipxecs behind endian firewall

Hi.

>From a previous topic I wa having, it seems that endian might be a
cuplrit with sipx working behind an endian firewall.  unfortunately for
me, I'm in no position to replce the firewall right now as it will be
more work to change.

has anyone been able to get sipx to work behind endian firewall?  any
pointers?  did you enable sip proxy in endian fw?

thanks in advance.

francis
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