Scott,

 

First, you need to get the most recent os for the pix, otherwise you will have a lot of problems with udp packets and translations (including bad checksum on your udp packets). I am running both pix515 and pix501 without a problem with sip and h323. you don’t need to open any ports on the pix, because the firewall is an ALG( Application layer gateway). If you have fixup sip enabled on the firewall (there by default), all packets entering port 5060 is examined and rtp ports are open dynamically as needed. The same is true for trusted calls (from inside interface) and untrusted calls (from outside, dmz interfaces). You will need to perform “conduit permit” commands on the public ip address of Asterisk to allow traffic from untrusted outside interface to come to trusted inside interface on port 5060 with both tcp and udp(all traffic is disabled by default). Please check on the exact syntax of “conduit” permit with cisco docs.  I don’t believe you will need to perform this for each RTP port, that should be done automatically by pix ALG.

 

Hope this helps

 

Alex

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott Wolfe
Sent: Saturday, April 02, 2005 7:03 PM
To: Asterisk-Users@lists.digium.com
Subject: [Asterisk-Users] xlite regestration fails but calls to thru

 

While on my network I can register ok with xlite but outside my firewall my Xlite says that regestraion has failed but I am still able to make calls through it. I have opened ports: 5060 udp/tcp and 10000-20000 udp/tcp  is there another port Xlite needs for proper regestration? Is is this a network configuation error on Astrisks part? My Asterisk server is running a IP of 10.0.1.x and my Cisco firewall is passing the public IP address to it from the outside.

 

Thanks for any advice.

 -Scott

 

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