[asterisk-users] oneway audio with asterisk behind cisco pix 506

Wendell Hamilton routerguy at rightsolve.com
Sat Feb 9 01:24:46 CST 2008


Note also that if you point to the DNS name rather than the IP address of the asterisk server on the phones trying to register, you can set NAT=NO on the asterisk side and the sip FIXUP command on the PIX will handle everything correctly making this workaround unnecessary 


----- Original Message ----- 
From: "Ravichandran Rajagopal" <ravichandran.rajagopal at gmail.com> 
To: asterisk-users at lists.digium.com 
Sent: Friday, February 8, 2008 8:54:23 PM (GMT-0800) America/Los_Angeles 
Subject: [asterisk-users] oneway audio with asterisk behind cisco pix 506 





Hi, 



I have the Cisco PIX 506 firewall right in front of the asterisk and I am getting a one-way audio. I need your help/guidance to resolve this problem. I have the “fixups” disabled for SIP in the Cisco PIX 506. Any help rendered by you in this subject is greatly appreciated. I have been breaking my head trying to resolve this problem for more than one month. I have included the sip.conf and the extensions.conf below. 



[SIP.conf] 

; SIP Configuration example for Asterisk 

[general] 

context=incoming 

allowoverlap=no 

bindport=5060 

bindaddr=0.0.0.0 

localnet=192.168.5.0/255.255.255.0 

externip=a.b.ccc.dd 

srvlookup=yes 

allow=ulaw 

allow=alaw 



[incoming] 

type=peer 

nat=no 

canreinvite=no 

host=xx.y.z.aaa 

qualify=yes 

dtmfmode=rfc2833 

context=default 



[extensions.conf] 

[general] 

static=yes 

writeprotect=yes 

clearglobalvars=no 



[default] 

include => customer 

exten => h,1,Hangup 

exten => i,1,Congestion 

exten => i,2,Hangup 



[agnosco] 

include => local-extensions 

include => customer_ivr 

include => incoming 



[customer_ivr] 

include => local-extensions 

exten => s,1,Answer 

exten => s,n,Background(agnosco_intro) 

exten => s,n,WaitExten 



;Dial said extensions 

exten => 5,1,Dial(SIP/4028805362 at incoming,30) 



[incoming] 

exten => 4025901000,1,Goto(1000,1) 

exten => 1000,1,Goto(customer_ivr,s,1) 



Thanks 

sunMoonstar.
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