I've this error with openser;

 

[root@asterisk11 ~]# openser
 0(3176) WARNING: fix_socket_list: could not rev. resolve 192.168.251.11
 0(3176) WARNING: fix_socket_list: could not rev. resolve 192.168.251.11
Listening on
             udp: 127.0.0.1 [127.0.0.1]:5060
             udp: 192.168.251.11 [ 192.168.251.11]:5060
             tcp: 127.0.0.1 [127.0.0.1]:5060
             tcp: 192.168.251.11 [ 192.168.251.11]:5060
Aliases:
             tcp: asterisk11.local:5060
             udp: asterisk11.local:5060

stateless - initializing
[root@asterisk11 ~]#  0(0) Maxfwd module- initializing
 0(0) AUTH module - initializing
 0(0) AUTH_DB module - initializing
 0(0) INFO: udp_init: SO_RCVBUF is initially 110592
 0(0) INFO: udp_init: SO_RCVBUF is finally 221184
 0(0) INFO: udp_init: SO_RCVBUF is initially 110592
 0(0) INFO: udp_init: SO_RCVBUF is finally 221184
 0(0) ERROR: tcp_init: bind(6, 0x811b0a4, 16) on 127.0.0.1:5060 : Address already in use

 

and this is my openser.cfg;

# SCRIPT PER COPIARE LO STATO DELLE REGISTRAZIONI DEI SIP DAL .11 al .12

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

debug=3          # debug level (cmd line: -dddddddddd)
fork=no
log_stderror=no # (cmd line: -E)
listen=192.168.251.12
listen=192.168.251.11
listen=192.1668.251.200
port=5060
children=5
dns=no
rev_dns=no
# ------------------ module loading ----------------------------------

loadmodule "modules/mysql/mysql.so"
loadmodule "modules/sl/sl.so"
loadmodule "modules/tm/tm.so"
loadmodule "modules/maxfwd/maxfwd.so"
loadmodule "modules/usrloc/usrloc.so"
loadmodule "modules/registrar/registrar.so"
loadmodule "modules/auth/auth.so"
loadmodule "modules/auth_db/auth_db.so"

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

# digest generation secret; use the same in backup server;
# also, make sure that the backup server has sync'ed time
modparam("auth", "secret", "alsdkhglaksdhfkloiwr")

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

# main routing logic

route{

 # initial sanity checks -- messages with
 # max_forwars==0, or excessively long requests
 if (!mf_process_maxfwd_header("10")) {
  sl_send_reply("483","Too Many Hops");
  return;
 };
 if (len_gt( max_len )) {
  sl_send_reply("513", "Message too big");
  return;
 };

 # if the request is for other domain use UsrLoc
 # (in case, it does not work, use the following command
 # with proper names and addresses in it)
 if (uri==myself) {

  if (method=="REGISTER") {

   # verify credentials
   if (!www_authorize("", "subscriber")) {
    www_challenge("", "0");
    return;
   };

   # if ok, update contacts and ...
   save("location");
   # ... if this REGISTER is not a replica from our
   # peer server, replicate to the peer server
   if (!src_ip== 192.168.251.12) {
    t_replicate("192.168.251.12", "5060");
   };
   return;
  };
  # do whatever else appropriate for your domain
  log("non-REGISTER\n");
 };
}

I'm using openser on asteriskAtHome, I've changed the port on asterisk like 5065...but I've this problems....I've also make this:

export SIP_DOMAIN="192.168.251.12" and the others...with and without the " "

 I've warmings and 1 error....the IP are all up and works...so what could be?

0(0) ERROR: tcp_init: bind(6, 0x811b0a4, 16) on 127.0.0.1:5060 : Address already in use

100000000000000000000000000000000000000000000000000000000000 thanks