Hello,
In terms of private/public IP addresses,in kamailio you would need to
"advertise" the public IP address, such that:
listen=udp:192.168.0.10:5060 ADVERTISE 123.123.123.123:5060
So kamailio, when sending out, utilises that public (advertise) IP address
as its own address.
I don't know of any mechanism that allows you to set two different public
IP addresses as advertised addresses.
You _can_ receive from multiple public IPs by setting multiple aliases,
like:
alias=123.123.123.123:5060
alias=213.213.213.213:5060
and kamailio would process them as its own IPs.
But when sending out, it will use the ADVERTISED address.
So the correct thing to do is to have multiple private address mapped
one-to-one to public ip address, i.e.:
listen=udp:192.168.0.10:5060 ADVERTISE 123.123.123.123:5060
listen=udp:192.168.0.20:5060 ADVERTISE 213.213.213.213:5060
This _would_ work properly.
Regards,
David Villasmil
email: david.villasmil.work(a)gmail.com
phone: +34669448337
On Wed, Apr 22, 2020 at 7:04 PM Leonid Fainshtein <
leonid.fainshtein(a)xorcom.com> wrote:
Can you elaborate a little? I didn't understand
you.
Best regards,
Leonid
On Wed, Apr 22, 2020 at 6:53 PM David Villasmil <
david.villasmil.work(a)gmail.com> wrote:
I think mapping IPs is a one-to-one relationship
On Wed, 22 Apr 2020 at 16:18, Leonid Fainshtein <
leonid.fainshtein(a)xorcom.com> wrote:
Hi,
My server has several external IP interfaces and one internal interface.
For some calls I would like to handle RTP via Ext1<->Int interfaces and for
other calls: via Ext2<->Int.
In order to achieve this, I don't define the '-l' rtpproxy parameter,
and depending on the call, I set the required IP address as a parameter of
rtpproxy_manage().
I didn't succeed to get the desired result.
On my testbed, I have the following interfaces:
Ext1: 192.168.0.31
Ext2: 192.168.0.32
Int: 10.159.65.1
When I try to create Ext2<->Int (192.168.0.32<-> 10.159.65.1), the
packets that accepted on the internal interface are sent out from the
Ext1(192.168.0.31) instead of Ext2 (192.168.0.32). It looks like the
decision about the source address is made based on the IP routing table
information (?).
Also, I would like to have an advertised address for at least one
external interface.
Is it achievable with just one instance of rtpproxy? Or, it is necessary
to run two rtpproxies in the bridged mode wit configured advertize
addresses?
Thank you in advance,
Leonid
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Regards,
David Villasmil
email: david.villasmil.work(a)gmail.com
phone: +34669448337
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