8 Jul
2009
8 Jul
'09
11:58 a.m.
Thanks!
Just for clarification:
dns
This parameter controls if the SIP server will try doing a DNS lookup
on the address in the Via header of a received sip request to decide
if adding a received=<src_ip> parameter to the Via is necessary. Note
that Vias containing DNS names (instead of IPs) should have received=
added, so turning dns to yes is not recommended.
Default is no.
Does this mean that, if the Via header in the received message contains
a domain and:
dns=yes, a lookup is done, and if the domain resolves to the src_ip,
then the "received" parameter is not added, but only added when the
domain resolves to a different IP address?
dns=no: the "received" parameter is always added?
What about the behavior when the Via header contains an IP address (does
this parameter affects the behavior)? Is the "received" parameter always
added, or only if it Via-IP differs from source-IP? What about existing
"received" parameter - will they be deleted/overwritten.
I ask because some time ago we had problems in Kamailio.
regards
klaus
Andrei Pelinescu-Onciul schrieb:
On Jul 06, 2009 at 19:36, Klaus Darilion
<klaus.mailinglists(a)pernau.at> wrote:
Hi!
Can someone please review the documentation of the dns= and
rev_dns= parameter?
http://sip-router.org/wiki/cookbooks/core-cookbook/devel#dns
They are more or less the same, and the described behavior has IMO
nothing to do with the Via's received parameter.
Please also describe dns_cache_del_nonexp
Done, thanks!
Andrei