1 Oct
2021
1 Oct
'21
9:03 a.m.
Dear
Thanks for your quick reply and sorry for spamming your mailbox.
I am very confused about the setup of kamailio.cfg and rtpproxy.
I have an existing kamailio 4.4 - rtpproxy running and I get the config
files from both and setup the new vm.
Just private connection works but the idea is to have connection from
outside too.
I am sure there is a mismatch with public ip, natting and/or setup of the
vm hosts file.
- architecture:
*- 1x virtualbox*
+ 1x vm with bridge mode for network (get private ip address from the
router). I suppose this is the PRIVATE_IP
*+ 1x desktop (windows)* hosting a sipphone here Microsip (
https://www.microsip.org/)
*- 1x modem/router* from the telecom provider - bbox-3V+ from PROXIMUS
+ forced in DMZ host the Kamailio server PRIVATE_IP
[image: 211001 - kamailio architecture and settings.png]
- the hosts file from Kamailio + rtpproxy is ( Maybe something is wrong
or missing)
/etc/hosts
127.0.0.1 localhost
127.0.1.1 sipsecure.by-systems.be sipsecure
192.168.1.19 sipsecure.by-systems.be sipsecure
xxx.XXX.xxx.XXX sipsecure.by-systems.be sipsecure
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
*/etc/kamailio/kamailio.cfg*
kamailio.config
#!define PUBLIC_IP "xxx.xxx.xxx.xxx"
#!define PRIVATE_IP "192.168.1.19"
#!define PRIVATE_NET "192.168.1.0/24“
#!ifdef WITH_NAT
# ----- rtpproxy params -----
modparam("rtpproxy", "rtpproxy_sock",
"udp:PRIVATE_IP:7722")
# ----- nathelper params -----
modparam("nathelper", "natping_interval", 30)
modparam("nathelper", "ping_nated_only", 1)
modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
modparam("nathelper", "sipping_from",
"sip:pinger@kamailio.org")
*Etc/default/rtpproxy*
PRIVATE_IP=192.168.1.19
PUBLIC_IP=xxx.xxx.xxx.xxx
rtpport_min= 10000
rtpport_max=20000
syslog=DBUG:LOG_LOCAL5
#Defaults for rtpproxy
#The control socket.
#CONTROL_SOCK="unix:/var/run/rtpproxy/rtpproxy.sock"
#To listen on an UDP socket, uncomment this line:
#CONTROL_SOCK=udp:127.0.0.1:7722
#Additional options that are passed to the daemon.
EXTRA_OPTS="-l $PRIVATE_IP/$PUBLIC_IP ="-s $PRIVATE_IP:7222 -m $
rtpport_min -M $rtpport_max -d $syslog"`
- *Misconfiguring the VM*
That means do I need to use setup 1 or 2 or another
1. 2x NIC interfaces (one with private ip, second from dmz ip + NAT1:1
public ip)
2. 1x NIC interface (one private ip and natted 1:1 with public address)
- *test*
1. *use case 1 : *connect two (2x) sipphone from private network
(included kamailio) = OK
2. *use case 2 :* connect one (1x) codec from private ip and one (1x)
codec from public network (like mobile) = = issue - disconnect after 30 s
(register expires) start a conversation with audio but the caller or the
callee continues to send and INVITE message.
3. *use case 3 :* connect two (2x) sipphone from public network = issue
- disconnect after 30 s (register expires) start a conversation with audio
but the caller or the callee continue to send an INVITE message.
Best Regards,
Youssef BOUJRAF
