[Freeswitch-users] Problems with initial setup - basic nat

Brian West brian at freeswitch.org
Fri Apr 25 09:01:06 PDT 2008

You could have just turned auth-calls to false and context to default  
and accomplished the same thing  ;)


On Apr 25, 2008, at 10:55 AM, Jay Reeder wrote:

> Sorry to bug you guys.  I figured it out.
> In case anyone else is just learning to crawl with freeswitch….
> I enabled the following in the sip_profiles to get around the  
> authorization errors (for now):
>     <!--  comment the next line and uncomment one or both of the  
> other 2 lines for call authentication -->
>     <param name="accept-blind-reg" value="true"/>
>     <!-- accept any authentication without actually checking (not a  
> good feature for most people) -->
>     <param name="accept-blind-auth" value="true"/>
> Then I started receiving a 404 route not found so I modified the  
> public dialplan with the following:
>     <extension name="public_call">
>       <condition field="destination_number" expression="^(.*)$">
>         <action application="bridge" data="sofia/gateway/gafachi/$1"/>
>       </condition>
>     </extension>
> Then I wasn’t getting 2-way audio so I changed the sip profile for  
> nat (which I’m using internally) and set the ext-sip-ip and the ext- 
> rtp-ip to the same value as the rtp-ip and the sip-ip (since I’m  
> only using for internal nat through firewall to sip provider):
> <!--    <param name="ext-rtp-ip" value="$${external_rtp_ip}"/> -->
> <!--    <param name="ext-sip-ip" value="$${external_sip_ip}"/> -->
>     <param name="ext-rtp-ip" value="$${local_ip_v4}"/>
>     <param name="ext-sip-ip" value="$${local_ip_v4}"/>
> And now I have calls routed by sipx to freeswitch and through the  
> firewall to our internet sip provider.  Obviously the current  
> configuration isn’t secure but it’s enough to get things going.
> From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org 
> ] On Behalf Of Jay Reeder
> Sent: Thursday, April 24, 2008 4:40 PM
> To: freeswitch-users at lists.freeswitch.org
> Subject: [Freeswitch-users] Problems with initial setup - basic nat
> We’re setting up a SipXecs server in-house to manage about 20-30  
> polycom sip phones.  We have an Audiocodes Mediant 2000 to use as a  
> gateway but for testing I was also trying to setup sip in/out  
> dialing through the firewall.  I’ve wanted a reason to start playing  
> with freeswitch so I thought this would be an excellent opportunity  
> to use freeswitch for the Nat traversal.
> I’ve been through the wiki and reviewed list archives but I’m  
> missing something.
> I have RC3 on Centos (initially a trixswitch load but then upgraded  
> to the new RC3) with the standard config files.  I did remove the  
> older ones and re-installed the samples.
> This is a pretty basic install with a gafachi gateway setup for the  
> outbound sip profile, and the firewall’s external ip setup for the  
> external_rtp and external_sip values (in vars.xml), and the firewall  
> port forwards all recommended ports(from wiki getting started page)  
> into freeswitch.
> This is where I’m stuck.  I have sipx attempting to send calls to  
> Freeswitch on port 5070 (for nat) but Freeswitch won’t accept the  
> call and is logging:
> 2008-04-24 16:20:26 [DEBUG] sofia.c:219 sofia_event_callback() event  
> [nua_i_state] status [407][Proxy Authentication Required] session: n/a
> The nat sip_profile is setup per default to answer port 5070 and  
> authentication (per default) is disabled.
> I’m sure it’s something obvious but what am I missing?
> Thanks,
> Jay
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Brian West
sip:brian at freeswitch.org

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