A few points.

 

Firstly, If you are going to run 2 different instances on the same server, they should have different ports (e.g. 5060 for the 1st instance and 5062 for 2nd).
 

Secondly, if you are trying to resolve 2 different Local IPs to the same server (in your case 192.168.1.112 and 192.168.1.113), one of any of these should happen:

1. you should either have 2 network card interfaces in your server, or

2. Linux does this thing where it is able to split a single (physical) NIC interface into seperate virtual interfaces (e.g. for a single interface eth0 splits it into eth0: 0 for the 1st virtual interface and eth0:1 for the 2nd, etc). The process is called IP aliasing. You should then allocate the 2 local IPs to the 2 virtual interfaces like so:

 eth0:0 -> 192.168.1.112, and

 eth0:1 -> 192.168.1.113

 

commands are something like this:

 

    ifconfig eth0   XXX.XXX.XXX.XXX netmask 255.255.255.0 broadcast XXX.XXX.XXX.255
    ifconfig eth0:0 192.168.1.112   netmask 255.255.255.0 broadcast 192.168.1.255
    ifconfig eth0:1 192.168.1.113   netmask 255.255.255.0 broadcast 192.168.1.255

    route add -host XXX.XXX.XXX.XXX dev eth0
    route add -host 192.168.1.112 dev eth0
    route add -host 192.168.1.113  dev eth0
    route add default gw <Gateway IP>

 

where XXX.XXX.XXX.XXX in the 1st instance refers to another local IP e.g. 192.168.1.3.

(I am no Linux guru so maybe the gurus here could pipe in). :)

 

Method 1 is probably the simpler and more straight-forward, but if you can't afford 2 NICs I don't think Method 2 will be too difficult either.

 

 

Simply putting the entries in etc/hosts is not enough as the server needs to be able to identify them as 2 separate instances. This is why you are getting that error - it's because only one interface was identified and that has already been "bound" to the first Local IP ( 192.168.1.112).

 

Also, if I understand your ifconfig output correctly, then this is not setup correctly. You seem to be mixing private and public IP addresses. If you are going through a router or NATed environement you don't need to assign the external interfaces to the NIC(s), nor do you specifically need to define them in your openser.cfgs (i.e. listen=external IP). You only need this if you are in a non-NATed environment, so it's a case of either or.

 

Hope that made sense.

 

 

On 05/01/07, Gerardo Amaya <openser@gerardoamaya.com> wrote:

Hello All. I'm trying to install 2 Instances of openser on the same
machine with the following interfaces:

Instance #1 -----> 172.16.18.2 and 192.168.1.112
Instance #2 -----> 172.16.1.2 and 192.168.1.113

I made one installation on the default OpenSER folders and one in the
/usr/loca/openser_1/

The configuration went quite smooth. The first instance of the server is
running with no problem at all, but when I try to start the second
instance I got an error that it was unable to resolve the IP addresses I
add the following lines to the /etc/hosts file:

### OpenSER 1st interface configuration ####
192.168.1.112    openser1_internal
172.16.18.2     openser1_external
### OpenSER 1st Interface configuration ####

### OpenSER 2nd Interface configuration ####
192.168.1.113   openser1_internal
172.16.1.2     openser1_external
### OpenSER 2nd Interface configuration ####


After that Now I have the following error:

Jan  5 17:26:30 atel-router ./openser[17772]: ERROR: tcp_init: bind(7,
0x813e194, 16) on 192.168.1.112:5060 : Address already in use


Any Help will be appreciated, of better is there a How-to on OpenSER
multiple instances please let me know.

Thanks in advance

Gerardo Amaya

Here is the configuration file for each instance:

OpenSER.cfg Instance #1

#
# $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei Exp $
#
# simple quick-start config script
#

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

debug=5        # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=no # (cmd line: -E)

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

check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
listen= 192.168.1.112
listen=172.16.18.2
port=5060
mhomed=1
children=4
fifo="/tmp/ser_fifo"

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

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

loadmodule "/usr/local/lib/openser/modules/sl.so"
loadmodule "/usr/local/lib/openser/modules/tm.so"
loadmodule "/usr/local/lib/openser/modules/rr.so"
loadmodule "/usr/local/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/lib/openser/modules/registrar.so"
loadmodule "/usr/local/lib/openser/modules/textops.so"
loadmodule "/usr/local/lib/openser/modules/uri.so"
loadmodule "/usr/local/lib/openser/modules/uri_db.so"
loadmodule "/usr/local/lib/openser/modules/domain.so"
loadmodule "/usr/local/lib/openser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/openser/modules/nathelper.so"

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

# -- nathelper and mediaproxy params --
modparam("nathelper", "natping_interval", 30)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpproxy.sock")
# -- End of nathelper and mediaproxy params --

# -- auth_db database params for domain.so module to work properly --

modparam("auth_db|domain|uri_db|usrloc","db_url","mysql://root:codevoz@localhost/openser")
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")
# -- End of database params --


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

# main routing logic

route{

       # initial sanity checks -- messages with
       # max_forwards==0, or excessively long requests
       if (!mf_process_maxfwd_header("10")) {
               sl_send_reply("483","Too Many Hops");
               return;
       };
       if (msg:len >=  2048 ) {
               sl_send_reply("513", "Message too big");
               return;
       };


       if (method == "REGISTER" || ! search("^Record-Route:")) {

         fix_nated_contact(); # Rewrite contact with source IP of
signalling
         #if (method == "INVITE") {
         #  fix_nated_sdp("1"); # Add direction=active to SDP
         #};

         force_rport(); # Add rport parameter to topmost Via

       }


       if (method == "INVITE") {
           if (dst_ip == 192.168.1.112){
               if (force_rtp_proxy("FAII"))
               t_on_reply("1");
           } else if (dst_ip == 172.16.18.2){
               if (force_rtp_proxy("FAEI"))
               t_on_reply("1");
           } else if (dst_ip == 192.168.1.112){
               if (force_rtp_proxy("FAIE"))
               t_on_reply("1");
           } else if (dst_ip == 172.16.18.2){
               if (force_rtp_proxy("FAEE"))
               t_on_reply("1");
           }
       };
       # Record-route all messages -- to make sure that
       # subsequent messages will go through our proxy; that's
       # particularly good if upstream and downstream entities
       # use different transport protocol

       # This is the Call Tear Down Section
       if (method=="BYE" || method=="CANCEL") {
          unforce_rtp_proxy();
       };

       route(1);
}

route[1] {

       t_on_reply("1");

       #force_rtp_proxy();
       t_relay("udp:192.168.1.2:5060");


}

onreply_route[1] {

       if (!search("^Content-Length:[ ]*0")) {
               force_rtp_proxy();
       };

       if (nat_uac_test("1")) {
               fix_nated_contact();
       };
}


OpenSER.cfg Instance #2
#
# $Id: ser.cfg,v 1.25.2.1 2005/02/18 14:30:44 andrei Exp $
#
# simple quick-start config script
#

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

debug=5        # debug level (cmd line: -dddddddddd)
fork=yes
log_stderror=no # (cmd line: -E)

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

check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
listen=udp:192.168.1.113:5060
listen=udp:172.16.1.2:5060
#port=5060
mhomed=1
children=4
fifo="/tmp/ser_fifo2"

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

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

loadmodule "/usr/local/openser_1/lib/openser/modules/sl.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/tm.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/rr.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/maxfwd.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/usrloc.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/registrar.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/textops.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/uri.so"loadmodule
"/usr/local/openser_1/lib/openser/modules/nathelper.so"

# Uncomment this if you want digest authentication
# mysql.so must be loaded !
loadmodule "/usr/local/openser_1/lib/openser/modules/auth.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/auth_db.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)

# -- nathelper and mediaproxy params --
modparam("nathelper", "natping_interval", 30)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "rtpproxy_sock", "unix:/var/run/rtpproxy_1.sock")
# -- End of nathelper and mediaproxy params --

# -- auth_db database params for domain.so module to work properly --

modparam("auth_db|domain|uri_db|usrloc","db_url","mysql://root:codevoz@localhost/openser")
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")
# -- End of database params --


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

# main routing logic

route{

       # initial sanity checks -- messages with
       # max_forwards==0, or excessively long requests
       if (!mf_process_maxfwd_header("10")) {
               sl_send_reply("483","Too Many Hops");
               return;
       };
       if (msg:len >=  2048 ) {
               sl_send_reply("513", "Message too big");
               return;
       };


       if (method == "REGISTER" || ! search("^Record-Route:")) {

         fix_nated_contact(); # Rewrite contact with source IP of
signalling
         #if (method == "INVITE") {
         #  fix_nated_sdp("1"); # Add direction=active to SDP
         #};

         force_rport(); # Add rport parameter to topmost Via

       }


       if (method == "INVITE") {
           if (dst_ip == 192.168.1.113){
               if (force_rtp_proxy("FAII"))
               t_on_reply("1");
           } else if (dst_ip == 172.16.1.2){
               if (force_rtp_proxy("FAEI"))
               t_on_reply("1");
           } else if (dst_ip == 192.168.1.113){
               if (force_rtp_proxy("FAIE"))
               t_on_reply("1");
               t_on_reply("1");
           } else if (dst_ip == 192.168.1.113){
               if (force_rtp_proxy("FAIE"))
               t_on_reply("1");
           } else if (dst_ip == 172.16.1.2){
               if (force_rtp_proxy("FAEE"))
               t_on_reply("1");
           }
       };
       # Record-route all messages -- to make sure that
       # subsequent messages will go through our proxy; that's
       # particularly good if upstream and downstream entities
       # use different transport protocol

       # This is the Call Tear Down Section
       if (method=="BYE" || method=="CANCEL") {
          unforce_rtp_proxy();
       };

       route(1);
}

route[1] {

       t_on_reply("1");

       #force_rtp_proxy();
       t_relay("udp:192.168.1.2:5060");


}

onreply_route[1] {

       if (!search("^Content-Length:[ ]*0")) {
               force_rtp_proxy();
       };

       if (nat_uac_test("1")) {
               fix_nated_contact();
       };
}

loadmodule "/usr/local/openser_1/lib/openser/modules/uri_db.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/domain.so"
loadmodule "/usr/local/openser_1/lib/openser/modules/mediaproxy.so"





ifconfig output

eth0      Link encap:Ethernet  HWaddr 00:0E:2E:0A:61:68
         inet addr: 172.16.18.2  Bcast:172.16.18.255  Mask:255.255.255.0
         inet6 addr: fe80::20e:2eff:fe0a:6168/64 Scope:Link
         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:216465 errors:0 dropped:0 overruns:0 frame:0
         TX packets:323925 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:18190685 (17.3 MiB)  TX bytes:118579358 ( 113.0 MiB)
         Interrupt:185 Base address:0xaf00

eth1      Link encap:Ethernet  HWaddr 00:0E:2E:06:EC:17
         inet addr:172.16.1.2  Bcast: 172.16.1.255  Mask:255.255.255.0
         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
         Interrupt:209 Base address:0xce00

eth2      Link encap:Ethernet  HWaddr 00:0C:76:BE:E5:87
         inet addr: 192.168.1.112  Bcast:192.168.1.255  Mask:255.255.255.0
         inet6 addr: fe80::20c:76ff:febe:e587/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1155321 errors:0 dropped:0 overruns:0 frame:0
         TX packets:664343 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:187622098 (178.9 MiB)  TX bytes:125573054 (119.7 MiB)
         Interrupt:217 Base address:0xed00

eth2:0    Link encap:Ethernet  HWaddr 00:0C:76:BE:E5:87
         inet addr: 192.168.1.113  Bcast:192.168.1.255  Mask:255.255.255.0
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         Interrupt:217 Base address:0xed00



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