Hey all,

Joel, it’s failing saying the destination is unresolvable and Ben, I’m setting it like

Listen=tls:1.2.3.4:5061 advertise mydomain.com:5061

My domain.com srv is like

_sips._tcp.domain.com resolving to sip.domain.com (among others like udp, etc)

I would expect Kamailio to resolve its own srv, or have an option NOT to attempt to resolve and just the set host in the record-route, but maybe that’s just not how it works. Yes, setting sip.domain.com:5061 works but the the record-route would have that (sip.domain.com) exact same host and the client might disconnect and reconnect to that dns instead of the actual SRV.

Regards,

David Villasmil email: david.villasmil.work@gmail.com

On Mon, 1 Jul 2024 at 15:46, Ben Kaufman bkaufman@bcmone.com wrote:

Are you using a hostname that should resolve as srv , for example, sip.domain.com, or are you using the underscore, scheme, underscore transport protocol, hostname type like _sip._udp.domain.com ?

Regards,

Kaufman

*From:* David Villasmil via sr-users sr-users@lists.kamailio.org *Sent:* Sunday, June 30, 2024 6:02 PM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Cc:* David Villasmil david.villasmil.work@gmail.com *Subject:* [SR-Users] SRV in advertise?

*CAUTION:* This email originated from outside the organization. *Do not click links or open attachments* unless you recognize the sender and know the content is safe.

Hello guys,

I'm trying to use an SRV as an advertised address but kamailio fails to start. Is this not possible?

Thanks,

David Villasmil

email: david.villasmil.work@gmail.com

Hello,

indeed, as mentioned, the presence of a port in a SIP address makes it to skip SRV lookup.

Anyhow, I am jumping in to see what is the Kamailio version used in this scenario? I don't recall exactly, but a while ago there was a related commit, at least it looked like when I did some backports today for next planned release in 5.6.x series.

Cheers, Daniel

On 01.07.24 19:16, Ben Kaufman via sr-users wrote:

While I don’t know if it will or won’t cause the failure, you shouldn’t have a port number in something you’re intending to use as a SRV record.

• Kaufman

*From:*David Villasmil david.villasmil.work@gmail.com *Sent:* Monday, July 1, 2024 9:19 AM *To:* Ben Kaufman bkaufman@bcmone.com *Cc:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] SRV in advertise?

*CAUTION:*This email originated from outside the organization. _Do not click links or open attachments_ unless you recognize the sender and know the content is safe.

Hey all,

Joel, it’s failing saying the destination is unresolvable and Ben, I’m setting it like

Listen=tls:1.2.3.4:5061 http://1.2.3.4:5061/ advertise mydomain.com:5061 http://mydomain.com:5061/

My domain.com http://domain.com/ srv is like

_sips._tcp.domain.com http://tcp.domain.com/ resolving to sip.domain.com http://sip.domain.com/ (among others like udp, etc)

I would expect Kamailio to resolve its own srv, or have an option NOT to attempt to resolve and just the set host in the record-route, but maybe that’s just not how it works. Yes, setting sip.domain.com:5061 http://sip.domain.com:5061/ works but the the record-route would have that (sip.domain.com http://sip.domain.com/) exact same host and the client might disconnect and reconnect to that dns instead of the actual SRV.

Regards,

David Villasmil

email: david.villasmil.work@gmail.com

On Mon, 1 Jul 2024 at 15:46, Ben Kaufman bkaufman@bcmone.com wrote:

Are you using a hostname that should resolve as srv , for example,
sip.domain.com <http://sip.domain.com/>, or are you using the
underscore, scheme, underscore transport protocol, hostname type
like _sip._udp.domain.com <http://udp.domain.com/>?

 

Regards,

Kaufman

 

*From:*David Villasmil via sr-users <sr-users@lists.kamailio.org>
*Sent:* Sunday, June 30, 2024 6:02 PM
*To:* Kamailio (SER) - Users Mailing List
<sr-users@lists.kamailio.org>
*Cc:* David Villasmil <david.villasmil.work@gmail.com>
*Subject:* [SR-Users] SRV in advertise?

 


	

*CAUTION:*This email originated from outside the organization. _Do
not click links or open attachments_ unless you recognize the
sender and know the content is safe.

 

Hello guys,

 

I'm trying to use an SRV as an advertised address but kamailio
fails to start. Is this not possible?

 

Thanks,

 

David Villasmil

email: david.villasmil.work@gmail.com

 

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hello all,

using only the srv did not work either:

listen=tls:1.2.3.4:443 advertise mydomain.com

logs:

0(139992) ERROR: <core> [core/socket_info.c:350]: new_sock_info(): unable to resolve advertised name mydomain.com 0(139992) ERROR: <core> [core/socket_info.c:357]: new_sock_info(): could not allocate private memory from pkg pool 0(139992) ERROR: <core> [core/socket_info.c:784]: new_sock2list(): new_sock_info failed 0(139992) ERROR: <core> [core/socket_info.c:876]: add_listen_advertise_iface(): new_sock2list failed 0(139992) CRITICAL: <core> [core/cfg.y:1474]: yyparse(): cfg. parser: failed to add listen address

Thanks & Regards,

David Villasmil email: david.villasmil.work@gmail.com

On Mon, Jul 1, 2024 at 11:38 PM David Villasmil < david.villasmil.work@gmail.com> wrote:

Thanks all, I’m using 5.3.9, I’ll also need to upgrade

Regards,

David Villasmil email: david.villasmil.work@gmail.com

On Mon, 1 Jul 2024 at 20:47, Daniel-Constantin Mierla via sr-users < sr-users@lists.kamailio.org> wrote:

...

Hello,

indeed, as mentioned, the presence of a port in a SIP address makes it to skip SRV lookup.

Anyhow, I am jumping in to see what is the Kamailio version used in this scenario? I don't recall exactly, but a while ago there was a related commit, at least it looked like when I did some backports today for next planned release in 5.6.x series.

Cheers, Daniel On 01.07.24 19:16, Ben Kaufman via sr-users wrote:

While I don’t know if it will or won’t cause the failure, you shouldn’t have a port number in something you’re intending to use as a SRV record.

• Kaufman

*From:* David Villasmil david.villasmil.work@gmail.com david.villasmil.work@gmail.com *Sent:* Monday, July 1, 2024 9:19 AM *To:* Ben Kaufman bkaufman@bcmone.com bkaufman@bcmone.com *Cc:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] SRV in advertise?

*CAUTION:* This email originated from outside the organization. *Do not click links or open attachments* unless you recognize the sender and know the content is safe.

Hey all,

Joel, it’s failing saying the destination is unresolvable and Ben, I’m setting it like

Listen=tls:1.2.3.4:5061 advertise mydomain.com:5061

My domain.com srv is like

_sips._tcp.domain.com resolving to sip.domain.com (among others like udp, etc)

I would expect Kamailio to resolve its own srv, or have an option NOT to attempt to resolve and just the set host in the record-route, but maybe that’s just not how it works. Yes, setting sip.domain.com:5061 works but the the record-route would have that (sip.domain.com) exact same host and the client might disconnect and reconnect to that dns instead of the actual SRV.

Regards,

David Villasmil

email: david.villasmil.work@gmail.com

On Mon, 1 Jul 2024 at 15:46, Ben Kaufman bkaufman@bcmone.com wrote:

Are you using a hostname that should resolve as srv , for example, sip.domain.com, or are you using the underscore, scheme, underscore transport protocol, hostname type like _sip._udp.domain.com ?

Regards,

Kaufman

*From:* David Villasmil via sr-users sr-users@lists.kamailio.org *Sent:* Sunday, June 30, 2024 6:02 PM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Cc:* David Villasmil david.villasmil.work@gmail.com *Subject:* [SR-Users] SRV in advertise?

*CAUTION:* This email originated from outside the organization. *Do not click links or open attachments* unless you recognize the sender and know the content is safe.

Hello guys,

I'm trying to use an SRV as an advertised address but kamailio fails to start. Is this not possible?

Thanks,

David Villasmil

email: david.villasmil.work@gmail.com

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-- Daniel-Constantin Mierla (@ asipto.com)twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com

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