[OpenSIPS-Users] OpenSIPS resolving DNS SRV records

[Eric Tamme]

Follow up to the group:   the domain he is trying to reach only has SRV 
records for TLS and TCP, so he has to append ;transport=tcp to his 
request URI to force a TCP SRV lookup in opensips.

On 05/22/2015 01:34 PM, Eric Tamme 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 <mailto: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 <http://BlahBlah.webex.com> but I don't have any 
>> compare since all the test domains I call (200901 at login.zipdx.com 
>> <mailto:200901 at login.zipdx.com>, telephreak at voip.telephreak.org 
>> <mailto: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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