Hello,

I just started using SER. Using SER with the standard ser.cfg was easy, just configuring SER with rtpproxy isn't.

I'd like to force all clients to use the rtpproxy (clients: Cisco7960, Kphone 3.11 IPv6, and Kphone 4.0.5.).

The server is a Debian Sarge pc with ser 0.8.14 (debian-packages from iptel.org) with mysql4, php4, apache2 and the cvs-version of rtpproxy.

I found a good manual here: http://www.id.ethz.ch/people/allid_list/armin/SIP-IPv4-IPv6.pdf But the clients are still using P2P (if ipv4 <-> ipv4 or ipv6 <-> ipv6, ipv4 <-> ipv6 isn't possible).

Using ethereal I can see that ser is still sending the (calling-)client the ip-address of the (called-)client, instead of the ip-address of the proxy:

sip:phil@139.6.16.83;ftag=000d290ab5b300495ac945a4-569189e1;lr=on Message body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): username 0 0 IN IP4 139.6.16.73 Session Name (s): The Funky Flow Connection Information (c): IN IP4 139.6.16.73 Connection Network Type: IN Connection Address Type: IP4 Connection Address: 139.6.16.73 Time Description, active time (t): 0 0 Media Description, name and address (m): audio 32778 RTP/AVP 0 Media Attribute (a): rtpmap:0 PCMU/8000

What is wrong in my configuration?

I am starting the proxy with /usr/local/bin/rtpproxy -l /139.6.16.83 -6 3000:0:0:12::30 (we are using faked ipv6-adresses, we are not connected to the (ipv6-)internet)

My ser.cfg:

# # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $ # # simple quick-start config script #

# ----------- global configuration parameters ------------------------

#debug=3 # debug level (cmd line: -dddddddddd) #fork=yes #log_stderror=no # (cmd line: -E)

/* Uncomment these lines to enter debugging mode debug=7 fork=no log_stderror=yes */

check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) port=5060 children=2 fifo="/tmp/ser_fifo"

listen=139.6.16.83 listen=3000:0:0:12::30

# ------------------ module loading ----------------------------------

# Uncomment this if you want to use SQL database loadmodule "/usr/lib/ser/modules/mysql.so"

loadmodule "/usr/lib/ser/modules/sl.so" loadmodule "/usr/lib/ser/modules/tm.so" loadmodule "/usr/lib/ser/modules/rr.so" loadmodule "/usr/lib/ser/modules/maxfwd.so" loadmodule "/usr/lib/ser/modules/usrloc.so" loadmodule "/usr/lib/ser/modules/registrar.so"

# Uncomment this if you want digest authentication # mysql.so must be loaded ! loadmodule "/usr/lib/ser/modules/auth.so" loadmodule "/usr/lib/ser/modules/auth_db.so"

# NAT-Traversal usw loadmodule "/usr/lib/ser/modules/nathelper.so"

# ----------------- setting module-specific parameters ---------------

# -- usrloc params --

#modparam("usrloc", "db_mode", 0)

# Uncomment this if you want to use SQL database # for persistent storage and comment the previous line modparam("usrloc", "db_mode", 2)

# -- auth params -- # Uncomment if you are using auth module # modparam("auth_db", "calculate_ha1", yes) # # If you set "calculate_ha1" parameter to yes (which true in this config), # uncomment also the following parameter) # modparam("auth_db", "password_column", "password")

# -- rr params -- # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1)

# -------- Parameter des Nathelper - Moduls --------

modparam("nathelper", "rtpproxy_sock", "/var/run/rtpproxy.sock")

# ------------------------- request routing logic -------------------

# me, myself & I: alias="139.6.16.83" alias="3000:0:0:12::30" alias="ipv6sipserv.nt.fh-koeln.de" alias="ipv6sipserv.ipv6.fh-koeln.de" alias="ipv6sipserver.ipv6.fh-koeln.de" alias="sipserver.ipv6.fh-koeln.de" alias="sipserver" alias="ipv6sipserv"

# main routing logic

route { # initial sanity checks -- messages with # max_forwars == 0, or excessively long requests, # or those that don't addressed to us if (!mf_process_maxfwd_header("10")) { sl_send_reply("483", "Too Many Hops"); break; }; if (msg:len > max_len) { sl_send_reply("513", "Message too big"); break; };

# route invitation request to other domains if (!(uri == myself) && method == "INVITE") { record_route(); if (!t_relay()) sl_reply_error(); break; }; if (method == "REGISTER") { if (af == inet) { save("location_inet4"); } else if (af == inet6) { save("location_inet6"); } else { sl_send_reply("403", "Anmeldung fehlgeschlagen!"); }; break; };

if (method == "INVITE") { ################################ ### CASE: Anrufer nutzt IPv4 ### ################################ if (lookup("location_inet4")) {

# Comment out three lines below if you want # RTP for IPv4->IPv4 calls to go directly # between UAs

###### ### CASE: Beide nutzen IPv4 ###### if (af == inet) if (force_rtp_proxy("FAII")) t_on_reply("1");

# proxy session from a Internal IPv4 # phone to a External IPv6 address

###### ### CASE: Anrufer nutzt IPv4, Anzurufender IPv6 ###### if (af == inet6) if (force_rtp_proxy("FAIE")) t_on_reply("1"); }

################################ ### CASE: Anrufer nutzt IPv6 ### ################################ else if (lookup("location_inet6")) {

# proxy session from a External IPv6 # phone to a Internal IPv4 address

###### ### CASE: Anrufer nutzt IPv6, Anzurufender IPv4 ###### if (af == inet) if (force_rtp_proxy("FAEI")) t_on_reply("1");

# Comment out three lines below if you want # RTP for IPv6->IPv6 calls to go directly # between UAs

###### ### CASE: Beide nutzen IPv6 ###### if (af == inet6) if (force_rtp_proxy("FAEE")) t_on_reply("1"); }

else { sl_send_reply("403", "User nicht erreichbar oder unbekannt!"); break; }; };

if (method == "BYE" || method == "CANCEL") unforce_rtp_proxy();

# Do strict routing if pre-loaded route headers present if (loose_route()) { t_relay(); break; };

if (method == "INVITE") record_route();

if (!t_relay()) sl_reply_error(); }

onreply_route[1] { if (!(status=~"183" || status=~"200")) break; force_rtp_proxy("FA"); }

Sorry for my bad english. Thanks for your help!