sip.linphone.org and UDP no longer working?

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sip.linphone.org and UDP no longer working?

Greg Troxel
(I am helping someone debug a SIP setup.)

I am seeing that a user account on linphone.org that used to work fine
is no longer registering.  A VOIP phone is sending register messages via
UDP to port 5060 (to sip.linphone.org, which inverse dns says is
sip1.linphone.org), and I am seeing port unreachables coming back.

I know it's lame for a phone to use UDP/5060 instead of TLS.  but, I
have not seen any announcements that linphone.org is no longer
supporting regular UDP sip.

Is anyone else seeing this?

Greg


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Re: sip.linphone.org and UDP no longer working?

Greg Troxel
Greg Troxel <[hidden email]> writes:

> (I am helping someone debug a SIP setup.)
>
> I am seeing that a user account on linphone.org that used to work fine
> is no longer registering.  A VOIP phone is sending register messages via
> UDP to port 5060 (to sip.linphone.org, which inverse dns says is
> sip1.linphone.org), and I am seeing port unreachables coming back.
>
> I know it's lame for a phone to use UDP/5060 instead of TLS.  but, I
> have not seen any announcements that linphone.org is no longer
> supporting regular UDP sip.

This morning, I tried TCP to both sip and sip-tls, and got connection
refused (from 2 hosts on 2 different networks).

So it looks like the entire sip service is broken or gone.

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Re: sip.linphone.org and UDP no longer working?

Russell Treleaven
I registered with sip.linphone.org at 6:05 p.m GMT

On Sun, Nov 25, 2018 at 10:31 AM Greg Troxel <[hidden email]> wrote:
Greg Troxel <[hidden email]> writes:

> (I am helping someone debug a SIP setup.)
>
> I am seeing that a user account on linphone.org that used to work fine
> is no longer registering.  A VOIP phone is sending register messages via
> UDP to port 5060 (to sip.linphone.org, which inverse dns says is
> sip1.linphone.org), and I am seeing port unreachables coming back.
>
> I know it's lame for a phone to use UDP/5060 instead of TLS.  but, I
> have not seen any announcements that linphone.org is no longer
> supporting regular UDP sip.

This morning, I tried TCP to both sip and sip-tls, and got connection
refused (from 2 hosts on 2 different networks).

So it looks like the entire sip service is broken or gone.

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--
Sincerely,

Russell Treleaven
[hidden email];transport=tcp


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Re: sip.linphone.org and UDP no longer working?

Greg Troxel
Russell Treleaven <[hidden email]> writes:

> I registered with sip.linphone.org at 6:05 p.m GMT

More information on my issue:

  An android device running linphone can register.

  jitsi cannot register, and I see the ICMP unreachables

What client are you using, and what is the registration method?  Does
linphone implement some private protocol?


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Re: sip.linphone.org and UDP no longer working?

Greg Troxel
Greg Troxel <[hidden email]> writes:

> Russell Treleaven <[hidden email]> writes:
>
>> I registered with sip.linphone.org at 6:05 p.m GMT
>
> More information on my issue:
>
>   An android device running linphone can register.
>
>   jitsi cannot register, and I see the ICMP unreachables
>
> What client are you using, and what is the registration method?  Does
> linphone implement some private protocol?

The plot thickens.  This may be confusion on my part, but I thought the
URIs were "[hidden email]".  That has a srv record, but points to a
server/port that is not functioning.  But "[hidden email]" points
to both a nonworking server (with priority 10) and a working server.
Plus, the ports on the working server are unusual (not 5060 and 5061).

_sip._udp.linphone.org. 10800 IN SRV 0 0 5060 sip.linphone.org. (BAD)
_sip._tcp.linphone.org. 10800 IN SRV 0 0 5060 sip.linphone.org. (BAD)
_sips._tcp.linphone.org. 10800 IN SRV 0 0 5061 sip.linphone.org. (BAD)

_sip._udp.sip.linphone.org. 3600 IN SRV 10 100 5060 sip1.linphone.org. (BAD)
_sip._udp.sip.linphone.org. 3600 IN SRV 0 100 5060 sip6.linphone.org. (OK?)

_sip._tcp.sip.linphone.org. 3600 IN SRV 0 100 5228 sip6.linphone.org. (OK)
_sip._tcp.sip.linphone.org. 3600 IN SRV 10 100 5228 sip1.linphone.org. (BAD)

_sips._tcp.sip.linphone.org. 3600 IN SRV 0 100 5223 sip6.linphone.org. (OK)
_sips._tcp.sip.linphone.org. 3600 IN SRV 20 100 443 sip6.linphone.org. (OK)
_sips._tcp.sip.linphone.org. 3600 IN SRV 10 100 5223 sip1.linphone.org. (BAD)

So, it's quite possible that my problems are a combination of

  bugs in clients not following SRV correctly

  one of the SRV records pointing to something that does not work

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Re: sip.linphone.org and UDP no longer working?

Greg Troxel
Greg Troxel <[hidden email]> writes:

> The plot thickens.  This may be confusion on my part, but I thought the
> URIs were "[hidden email]".  That has a srv record, but points to a
> server/port that is not functioning.  But "[hidden email]" points
> to both a nonworking server (with priority 10) and a working server.
> Plus, the ports on the working server are unusual (not 5060 and 5061).

I did not receive any response to my posting about this trouble, other
than some helpful debugging advice from Russell Treleaven.

(First, I realize now that URIs are [hidden email].  That
confusion turned out not to be important.)

I wrote earlier about SRV records.

Now, one can register with the standard UDP port at the address returned
in an A record from sip.linphone.org.  That didn't use to work.

The SRV records still point to unusual ports for tcp and tls; I don't
know if that's about firewall issues.  

Both hosts pointed to by SRV are up, and in addition answer TCP
connections on 5060 and 5061.

sip.linphone.org. 10800 IN A 91.121.209.194

_sip._udp.sip.linphone.org. 3600 IN SRV 0 100 5060 sip6.linphone.org.
_sip._udp.sip.linphone.org. 3600 IN SRV 10 100 5060 sip1.linphone.org.

_sip._tcp.sip.linphone.org. 3600 IN SRV 10 100 5228 sip1.linphone.org.
_sip._tcp.sip.linphone.org. 3600 IN SRV 0 100 5228 sip6.linphone.org.

_sips._tcp.sip.linphone.org. 3600 IN SRV 20 100 443 sip6.linphone.org.
_sips._tcp.sip.linphone.org. 3600 IN SRV 10 100 5223 sip1.linphone.org.
_sips._tcp.sip.linphone.org. 3600 IN SRV 0 100 5223 sip6.linphone.org.

sip1.linphone.org. 10800 IN A 91.121.209.194
sip6.linphone.org. 10800 IN A 54.37.202.229
sip6.linphone.org. 10789 IN AAAA 2001:41d0:700:789::2020


So now the person I am helping is having their VOIP phone register with linphone.org.


I conclude that it appears that somebody at linphone.org addressed the
issue of one server not responding, ports, SRV records.   But apparently
they are not reading this list :-)

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