How to hide Via and Record-Route header to external network and restore them to internal network?
1 Sep
2022
1 Sep
'22
1:58 p.m.
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
1 Sep
1 Sep
2:01 p.m.
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users(a)lists.kamailio.org
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
2:08 p.m.
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw(a)gilawa.com>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Cc : Anthony Blandin <anthony.blandin(a)airnity.com>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de hw(a)gilawa.com. Découvrez pourquoi
cela est important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users(a)lists.kamailio.org
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
2:16 p.m.
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
2:42 p.m.
Thanks Henning.
I will try it.
How topoh determines that it is a SIP message to be sent outside my network or not?
Anthony
________________________________
De : Henning Westerholt <hw(a)gilawa.com>
Envoyé : jeudi 1 septembre 2022 11:16
À : Anthony Blandin <anthony.blandin(a)airnity.com>om>; Kamailio (SER) - Users Mailing
List <sr-users(a)lists.kamailio.org>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de hw(a)gilawa.com. Découvrez pourquoi
cela est important<https://aka.ms/LearnAboutSenderIdentification>
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
3:14 p.m.
Hello,
the topology hiding is applied to both sides, so the modules not care. You can control
execution with parameters and also some event route, depending on the module and Kamailio
version.
Just note if you want the headers to really removed from the message, consider using topos
with a SQL DB or redis.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 11:42 AM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Thanks Henning.
I will try it.
How topoh determines that it is a SIP message to be sent outside my network or not?
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:16
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
6:26 p.m.
Hello,
I tried topoh and topology hiding is working well towards the external network but it does
not restore the Via and Record-Route on the replies.
Maybe I miss something in the configuration, I attached a pcap file if you can help me.
What I want is to restore all the Via and Record-Route headers from the incoming INVITE to
the Session Progress returned back to the previous node.
Thanks
Anthony
________________________________
De : Henning Westerholt <hw(a)gilawa.com>
Envoyé : jeudi 1 septembre 2022 12:14
À : Anthony Blandin <anthony.blandin(a)airnity.com>om>; Kamailio (SER) - Users Mailing
List <sr-users(a)lists.kamailio.org>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
the topology hiding is applied to both sides, so the modules not care. You can control
execution with parameters and also some event route, depending on the module and Kamailio
version.
Just note if you want the headers to really removed from the message, consider using topos
with a SQL DB or redis.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 11:42 AM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Thanks Henning.
I will try it.
How topoh determines that it is a SIP message to be sent outside my network or not?
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:16
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
2 Sep
2 Sep
12:44 p.m.
Hello,
as mentioned, this is not the way the module works. I will just not differ between
internal and external.
Why you need the topology information on the inside?
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 3:26 PM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
I tried topoh and topology hiding is working well towards the external network but it does
not restore the Via and Record-Route on the replies.
Maybe I miss something in the configuration, I attached a pcap file if you can help me.
What I want is to restore all the Via and Record-Route headers from the incoming INVITE to
the Session Progress returned back to the previous node.
Thanks
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 12:14
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
the topology hiding is applied to both sides, so the modules not care. You can control
execution with parameters and also some event route, depending on the module and Kamailio
version.
Just note if you want the headers to really removed from the message, consider using topos
with a SQL DB or redis.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:42 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Thanks Henning.
I will try it.
How topoh determines that it is a SIP message to be sent outside my network or not?
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:16
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
1:02 p.m.
Hello,
As you can see in the trace, SIP request from uac pass through several nodes before
reaching the SBC.
So when the SBC send back the reply inside my network, there is no more Via and
route-record headers and the adjacent node is not able to route the SIP reply to the uac.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw(a)gilawa.com>
Envoyé : vendredi 2 septembre 2022 09:44
À : Anthony Blandin <anthony.blandin(a)airnity.com>om>; Kamailio (SER) - Users Mailing
List <sr-users(a)lists.kamailio.org>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
as mentioned, this is not the way the module works. I will just not differ between
internal and external.
Why you need the topology information on the inside?
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin <anthony.blandin(a)airnity.com>
Sent: Thursday, September 1, 2022 3:26 PM
To: Henning Westerholt <hw(a)gilawa.com>om>; Kamailio (SER) - Users Mailing List
<sr-users(a)lists.kamailio.org>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
I tried topoh and topology hiding is working well towards the external network but it does
not restore the Via and Record-Route on the replies.
Maybe I miss something in the configuration, I attached a pcap file if you can help me.
What I want is to restore all the Via and Record-Route headers from the incoming INVITE to
the Session Progress returned back to the previous node.
Thanks
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 12:14
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hello,
the topology hiding is applied to both sides, so the modules not care. You can control
execution with parameters and also some event route, depending on the module and Kamailio
version.
Just note if you want the headers to really removed from the message, consider using topos
with a SQL DB or redis.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:42 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Thanks Henning.
I will try it.
How topoh determines that it is a SIP message to be sent outside my network or not?
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:16
À : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>; Kamailio
(SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hi Anthony,
the restore happens internally and in the configuration you are able to access the
headers, this is transparent for you.
Just give it a try in your lab, you can easily see it on the network.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Sent: Thursday, September 1, 2022 11:08 AM
To: Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>; Kamailio (SER) -
Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Subject: RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Hi Henning,
Yes, I looked to topoh to hide topology but I didn't find a way to restore back the
Via and Record-Route headers when I get replies from the external network.
Regards,
Anthony
________________________________
De : Henning Westerholt <hw@gilawa.com<mailto:hw@gilawa.com>>
Envoyé : jeudi 1 septembre 2022 11:01
À : Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>>
Cc : Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>>
Objet : RE: How to hide Via and Record-Route header to external network and restore them
to internal network?
Vous ne recevez pas souvent de courriers de la part de
hw@gilawa.com<mailto:hw@gilawa.com>. Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello,
already investigated the topology hiding modules (topos, topoh)? They might be not doing
exactly what you are describing, but usually are used for this kind of scenarios.
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users
<sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>>
On Behalf Of Anthony Blandin
Sent: Thursday, September 1, 2022 10:58 AM
To: sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Subject: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
1 Sep
1 Sep
2:01 p.m.
Hi Anthony,
Fairly sure the topos module will do that automagically for you.
Load, ensure you've got the DB for it. As long as your config is
solid, then you should be fine.
On Thu, 1 Sept 2022 at 18:58, Anthony Blandin
<anthony.blandin(a)airnity.com> wrote:
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my
network to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
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2:05 p.m.
Hello Anthony,
Topos module is what you need
It saves the informations in a db (I suggest using redis for performance)
and uses the contact header as a key for restoring datas.
Paolo
Il giorno gio 1 set 2022 alle 11:00 Anthony Blandin <
anthony.blandin(a)airnity.com> ha scritto:
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call
from my network to external network.
When I send SIP messages to external network, I want to hide Via and
Record-Route headers but when I receive replies from the external network I
want to restore these Via and Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users(a)lists.kamailio.org
Important: keep the mailing list in the recipients, do not reply only to
the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Paolo Visintin
*evoseed s.r.l.*
phone: +39 346 09 86 641
mail: paolo.visintin(a)evoseed.io
site: evoseed.io
address: Via Lucrezio 13, Trieste Italy
2 Sep
2 Sep
6:51 p.m.
Hello,
Thank you very much! It's working with topos.
I thought that topoh and topos was working in the same manner except using database but
it's definitevely not the case.
Thanks for your support.
Anthony
________________________________
De : sr-users <sr-users-bounces(a)lists.kamailio.org> de la part de Paolo Visintin
<paolo.visintin(a)evoseed.io>
Envoyé : jeudi 1 septembre 2022 11:05
À : Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Objet : Re: [SR-Users] How to hide Via and Record-Route header to external network and
restore them to internal network?
Vous ne recevez pas souvent de courriers de la part de paolo.visintin(a)evoseed.io.
Découvrez pourquoi cela est
important<https://aka.ms/LearnAboutSenderIdentification>
Hello Anthony,
Topos module is what you need
It saves the informations in a db (I suggest using redis for performance) and uses the
contact header as a key for restoring datas.
Paolo
Il giorno gio 1 set 2022 alle 11:00 Anthony Blandin
<anthony.blandin@airnity.com<mailto:anthony.blandin@airnity.com>> ha scritto:
Hi Community,
I have set up a SBC with Kamailio.
I am testing voice call from external network to my network and voice call from my network
to external network.
When I send SIP messages to external network, I want to hide Via and Record-Route headers
but when I receive replies from the external network I want to restore these Via and
Record-Route headers to my network.
How to store and restore these headers in Kamailio configuration ?
Could you help on this?
Thanks
Anthony Blandin
__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
* sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>
Important: keep the mailing list in the recipients, do not reply only to the sender!
Edit mailing list options or unsubscribe:
* https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
[https://cdn.bulksignature.com/photo/761_101444293184792194488.jpg?v=2]
Paolo Visintin
evoseed s.r.l.
phone: +39 346 09 86 641
mail: paolo.visintin@evoseed.io<mailto:paolo.visintin@evoseed.io>
site: evoseed.io<http://evoseed.io/>
address: Via Lucrezio 13, Trieste Italy
603
days inactive
604
days old
11 comments
4 participants
participants (4)
-
Anthony Blandin -
Henning Westerholt -
Paolo Visintin -
Richard Edmands