[SR-Users] topos xavu_field_contact_host kamailio 5.5

[Jonathan Hunter]

HI Henning,

Yes sorry late night 😊 and thank you for reply.

Yes I conditionally want to set it, I have tried this but not sure it has worked to this point hence why I am wondering if I am missing something.

Say for example I have request coming in from carrier on 10.10.10.10 interface and want to route to subscriber who is registered, so flow is simple its just;

Carrier--->kamailio-->subscriber

On branch route out I have set the contact_host to a particular IP address, however on_reply I want to change it again to another IP address, can I do that using the $xavu ?

So branch sees contact host as one IP address, and onreply I change it to another IP.

As currently if I set the Host it stays the same on both sides.

Does that make sense?

Jon

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows

From: Henning Westerholt<mailto:hw at gilawa.com>
Sent: 03 December 2021 08:08
To: Kamailio (SER) - Users Mailing List<mailto:sr-users at lists.kamailio.org>
Cc: Jonathan Hunter<mailto:hunterj91 at hotmail.com>
Subject: RE: topos xavu_field_contact_host kamailio 5.5

Hello,

There might be a spelling error below, you probably mean:

“$xavu(_tps_=>contact_host) = "2.2.2.2";
And this works fine but obviously sets the contact_host to 2.2.2.2 across both interfaces, I ideally want it to change between 10.10.10.10 and 2.2.2.2.”

Not sure if I understand your question correctly. You could just conditionally set the contact host to the different values, depending on your configuration logic.

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fskalatan.de%2Fblog%2F&data=04%7C01%7C%7C9e49a0c54f4b421b298c08d9b63407ce%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637741156850497697%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=PyHmeQ57OikxzbdWyDIb2vlko7ySRvsIxHZdER%2BgIjI%3D&reserved=0>
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From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Jonathan Hunter
Sent: Friday, December 3, 2021 8:57 AM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: [SR-Users] topos xavu_field_contact_host kamailio 5.5

Hi All,

I was wondering if anyone can help, and advise me if I am missing something when using topos in an environment where I have more than one interface for kamailio.

Essentially I would like to set the contact_host to 2 different values depending on the flow of the SIP requests, as we have a private LAN interconnect for example 10.10.10.10, and a public interconnect using 2.2.2.2 (for example).

I notice there is xavu for A-side contact and B-side contact, but what about just the contact host?

As I have set for example;

modparam("topos", "xavu_cfg", "_tps_")
modparam("topos", "xavu_field_contact_host", "contact_host")
...
    $xavu(_tps_=>contact_host) = "2.2.2.2";

And this works fine but obviously sets the contact_host to 8.8.8.8 across both interfaces, I ideally want it to change between 10.10.10.10 and 2.2.2.2.

How can I set more than one contact_host $xavu that topos can use? As my understanding is you can only set $xavu once, so is there another way to manipulate the contact_host on requests coming in and out on different interfaces?  I assume I am missing something? :)

Thanks in advance

Jon

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