[asterisk-users] GXP2000, Linksys RV082 Firewall / NAT, Registrations

[Mark Coccimiglio]

Do you have STUN Enabled?   I had similar when I had STUN turned on.  I 
found it better to turn off stun and place in sip.conf   "nat=route".  
Also use "NAT Keep-Alive" on the ATA that is < "NAT Timeout" on the Router.

Good Luck,
Mark Coccimiglio
IS Director
Payroll Services Hawaii, Inc.
http://www.psh-inc.com

lists at infoway.net wrote:

>Hello,
>
>We have several clients with GXP2000 in their network and behind NAT. We
>have one particular client that has several GXP2000 behind a Linksys RV082
>VPN Firewall/Router which is doing NAT services. According to SIP packet
>inspection, it detects it's a symmetric NAT.
>
>The problem we have is that even though we have configured Asterisk AND
>the GXP2000 to register every 60 minutes, they keep unregistering and
>re-registering every few couple of minutes (between 4 and 10 minutes).
>
>We have checked the client's Internet connection and it's not bouncing as
>well as their local network is working stable.
>
>So, the only thing we can think of why these phones are re-registering so
>often is their firewall device since it's the only "difference" between
>this client and our other clients that use the GXP2000.
>
>Does anyone have any idea why this is happening or how this can be resolved?
>
>Thanks,
>Daniel
>
>
>
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