[SR-Users] Kamailio s-cscf SRV <Root> query

[Flavio Battimo]

I attach a Wireshark dump


2013/12/13 Flavio Battimo <flaviobattimo at gmail.com>:
> Hello,
>
> working on Kamailio SCSCF module, when I receive an INVITE the serving
> module should find the corresponding ICSCF to forward the INVITE. In
> order to do this it should perform a NAPTR query, followed by a DNS
> SRV query and a DNS A query.
>
> In our case the serving has the following behavior:
> 1) it CORRECTLY make NAPTR query
> 2) it send an SRV query to resolve ICSCF service port having invalid
> response 4 times.
>
> After 4 times, so 20 seconds, it sends INVITE message to ICSCF at
> default port 5060.
> SRV query contains a null name, shown as <Root> in Wireshark. Current
> DNS application (MyDNS) answer with a not implemented response.
>
> I expect that the serving CSCF try to resolve the ICSCF making an SRV
> query and an A query to discover the service port and ip address using
> the domain returned by NAPTR query.
>
> I have two questions:
> It seems that SRV query is not valid, because it's not based on SIP
> domain, do you think it's correct?
>
> At least, is it possible to configure s-cscf to force an INVITE to be
> sent always to the same interrogating?
>
> --
> Flavio Battimo
> flavio.battimo at gmail.com
> fbattimo at meetecho.com
> skype: flaviobattimo



-- 
Flavio Battimo
flavio.battimo at gmail.com
fbattimo at meetecho.com
skype: flaviobattimo
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