[OpenSIPS-Users] Nathelper - will not send SIP OPTIONS pings

[Adrian Fretwell]

Hi Bogdan,

Thankyou, SIPPING_ENABLE bflag was olny being set where nat_uac_test was 
returning true.

When I set SIPPING_ENABLE bflag irrespective of nat_uac_test, I see the 
SIP OPTIONS pings.

I did not realise that even with modparam("nathelper", 
"ping_nated_only", 0) set, the bflag was still required for the OPTIONS 
ping.

Thank you again.


Kind regards,

Adrian Fretwell

Sibthorpe
Nottinghamshire
UK.


On 23/06/2020 14:33, Bogdan-Andrei Iancu wrote:
> Hi Adrian,
>
> Do you set the SIPPING_ENABLE bflag before saving the contact ?
>
> Regards,
> Bogdan-Andrei Iancu
>
> OpenSIPS Founder and Developer
>    https://www.opensips-solutions.com
>
> On 6/23/20 1:35 PM, Adrian Fretwell wrote:
>>
>> Hello All,
>>
>> Opensips v3.0.
>>
>> I have a simple routing script that implements a mid-registrar.  All 
>> of the endpoints are behind NAT so I need the proxy to send keep 
>> alive pings.
>>
>> I have the nathelper module loaded with the following configuration:
>>
>> /* --- Module NATHELPER ---------------
>>
>>  NAT traversal helper module
>>  ------------------------------------*/
>> loadmodule "nathelper.so"
>> modparam("nathelper", "natping_interval", 30)
>> modparam("nathelper", "ping_nated_only", 0)
>> modparam("nathelper", "sipping_method", "OPTIONS")
>> modparam("nathelper", "sipping_bflag", "SIPPING_ENABLE")
>> modparam("nathelper", "sipping_from", "sip:pinger at mrp1.xxxx.uk")
>> modparam("nathelper", "received_avp", "$avp(received_nh)")
>> modparam("nathelper", "ping_threshold", 5)
>> modparam("nathelper", "max_pings_lost", 3)
>> modparam("nathelper", "natping_partitions", 4)
>> modparam("nathelper", "remove_on_timeout_bflag", "SIPPING_RTO")
>> modparam("nathelper", "natping_tcp", 1)
>>
>> The nathelper module is sending the 4 byte UDP packets (verified by 
>> packet capture), but I cannot get it to send SIP OPTIONS pings.
>>
>> According to paragraph 1.2 (NAT pinging types), there are two types, 
>> UDP package and SIP request.  I cannot work out how to make it use 
>> SIP request.
>>
>> I assume that I do need SIP OPTIONS pings for the removal_on_timeout 
>> to work.
>>
>> Can anyone point me in the right direction please?
>>
>>
>>
>> Kind regards,
>>
>> Adrian Fretwell
>> Sibthorpe
>> Nottinghamshire
>>
>> UK.
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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