Scenario:
private IP address range : Internet
10.0.0.x : (public IP address range)
:
: foo.bar.org
+-------------+ +--------------+
! !.10 .1 ! masquerading ! publicIP
! SIP UA !---------------! NAT router !------------>>
! BT-100 ! ! ! !
+-------------+ ! +--------------+
! eth0 : ppp0
! :
! :
eth0 !.2
+-------------+
! siproxd !
! !
+-------------+ Siproxd is running on 10.0.0.2. The masquerading NAT router (e.g. a ADSL NAT router that cannot run any user applications).
siproxd.conf:
if_inbound = eth0 if_outbound = eth0 host_outbound = foo.bar.org hosts_allow_reg = 10.0.0.0/24 sip_listen_port = 5060 daemonize = 1 silence_log = 1 user = siproxd registration_file = /var/lib/siproxd_registrations pid_file = /var/run/siproxd/siproxd.pid rtp_proxy_enable = 1 rtp_port_low = 7070 rtp_port_high = 7089 rtp_timeout = 300 default_expires = 600 debug_level = 0 debug_port = 0
NAT router configuration:
forward all incoming traffic on 5060/udp to 10.0.0.2 forward all incoming traffic from 7070/udp - 7089/udp to 10.0.0.2
Phone configuration:
IP Address: 10.0.0.10 Subnet Mask: 255.255.255.0 Default Router: 10.0.0.1 DNS Server 1: <DNS Server of your Internet provider> SIP Server: proxy01.sipphone.com Outbound Proxy: 10.0.0.2 SIP User ID: 1747669xxxx Authenticate ID: 1747660xxxx Authenticate Passwd: ********* Name: Your Name Here Use DNS SRV: no User ID is phone #: no Sip Registration: yes Unregister on reboot:no Register expiration: 60 Early Dial: no local SIP port: 5060 local RTP port: 5004 Use random port: yes NAT traversal: no Use NAT IP: <empty> Subscribe for MWI: No Send DTMF: via RTP (RFC2833)