[OpenSIPS-Users] OpenSIPS resolving DNS SRV records

Duane Larson duane.larson at gmail.com
Fri May 22 21:48:17 CEST 2015


All,

Eric pointed out that this is related to there being onoUDP SRV records and
only TCP TLS records.

On Fri, May 22, 2015 at 2:34 PM, Eric Tamme <eric at uphreak.com> wrote:

>  OpenSIPS follows RFC3263, see sip_resolvehost() in resolve.c for more
> details.  If you send a a request that is not a sips uri, to a plain domain
> with no transport parameter or port, opensips will do a udp SRV lookup on
> the domain.
>
> Can you provide the actual domain please? If you cant - do a srv lookup on
> it to verify it actually has an SRV.
>
> dig _sip._udp.blabla.webex.com SRV
>
>
>
> On 05/22/2015 01:27 PM, Duane Larson wrote:
>
> OpenSIPS does not appear to be resolving the SIP address of a domain that
> is provided by WebEx.com.  When I dial dlarson at BlahBLah.webex.com the
> call gets forwarded to the IP address of the webserver but it really should
> be going to the IP address from an SRV record.  I believe the OpenSIPS
> default is to resolve DNS and also SRV records correct?  I wasn't sure if
> the issue might be because the domain is BlahBlah.webex.com but I don't
> have any compare since all the test domains I call (200901 at login.zipdx.com
> , telephreak at voip.telephreak.org) have the same IP for the web as it does
> for the sip.
>
>
>
>
>  debug=3
> log_stderror=no
> log_facility=LOG_LOCAL0
>
>  fork=yes
> children=4
>
>  /* uncomment the following lines to enable debugging */
> #debug=6
> #fork=no
> #log_stderror=yes
>
>  /* uncomment the next line to enable the auto temporary blacklisting of
>    not available destinations (default disabled) */
> #disable_dns_blacklist=no
>
>  /* uncomment the next line to enable IPv6 lookup after IPv4 dns
>    lookup failures (default disabled) */
> #dns_try_ipv6=yes
>
>  /* comment the next line to enable the auto discovery of local aliases
>    based on revers DNS on IPs */
> auto_aliases=no
>
>
>  listen=udp:eth0:5060   # CUSTOMIZE ME
>
>
>  disable_tcp=yes
>
>  #disable_tls=yes
>
>
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>
>
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