[Asterisk-Users] SIP + NAT = horrible mess

David Boyd dboyd at fullmoonsoft.com
Thu Jan 27 15:28:55 MST 2005


On Thu, 2005-01-27 at 17:25, Kim Lux wrote:
> On Thu, 2005-01-27 at 16:57 -0500, David Boyd wrote:
> > Will you Please share your configuration, I was ready to give  up,
> > thinking no one had been successful.
> 
> I am not using Asterisk, so I can only give you the Grandstream part of
> things.  Maybe some of the Grandstream parameters will twig an idea for
> an asterisk setting.   
> 
> If I were in your shoes, I'd get my SIP devices working with a simple
> NATing router and SIP provider before putting asterisk in the mix. 
> 
> Our setup is:
> 
> Broadband->LinkSys WRT56G->Grandstreams and computers.
> 
> When operating in this configuration, the Grandstreams are configured
> with DHCP and as follows:
> 
> Admin Password: (purposely not displayed for security protection) 
> 
> SIP Server: sip.babytel.ca  
> 
> Outbound Proxy: nat.babytel.ca:5065  		
> 
> SIP User ID: (the user part of an SIP address) 
> 
> Authenticate ID: same as above 
>   
> Authenticate Password:  (purposely not displayed for security
> protection) 
> 
> Name: (optional, e.g., John Doe) 
> 
> 
> Advanced Options: 
>  
> G723 rate: 6.3kbps encoding rate     
> 
> iLBC frame size: 30ms 
> 
> iLBC payload type: 99
> 
> Silence Suppression: No
> 
> Voice Frames per TX: 2
> 
> Layer 3 QoS: 48
> 
> Layer 2 QoS: 802.1Q/VLAN Tag  0    
> 802.1p priority value 0
> 
> Use DNS SRV: Yes 
> 
> User ID is phone number: No       
> 
> SIP Registration: Yes
> 
> Unregister On Reboot: Yes
> 
> Register Expiration: 60 minutes
>    
> Early Dial: No 
> 
> Dial Plan Prefix: <nothing>
> 
> No Key Entry Timeout: 4
> 
> Use # as Dial Key: No
> 
> local SIP port: 5060
> 
> local RTP port: 5004
> 
> Use random port: Yes 
> 
> NAT Traversal: No   (Don't set up a STUN server.) 
>     
> keep-alive interval: 20 seconds
> 
> Use NAT IP <nothing>
> 
> Proxy-Require: <nothing> 
> 
> <snip> 
> 
> Send DTMF: in-audio
> 
> 
> 
> When double NATing, the setup is:
> 
> broadband->WRT54G wireless router-> air ->laptop wifi->laptop Ethernet
> port->Grandstream
> 
> In this config the Grandstream is set up the same, except that I set the
> laptop Ethernet port to a static IP and the Grandstream to one too. 
> 
> When I am using a static IP, I give it 2 DNS servers so that it can
> resolve the sip urls. 
> 
> I hope this helps.
> 
> I've also taken the laptop to other offices and hooked into their
> wireless networks with no problems. 
> 
> 
> 
> 
> 
> 

Awesome, I will play with things and let the list know if successful in
integrating * in the mix.

Thanks for the info.

db




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