Is IMS supposed to work with NAT? AFAIK it uses IPsec and I wonder how it should work with NAT?
regards
Klaus
Am 09.06.2014 00:06, schrieb Carsten Bock:
Absolutely! The current implementation does not work with NAT... :-(
From Syslog:
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_usrloc_pcscf [usrloc.c:114]: get_aor_hash(): using host in lookup
[192.168.178.23]
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_usrloc_pcscf [udomain.c:473]: get_pcontact(): Searching for
contact in P-CSCF usrloc
[sip:4989200011250@192.168.178.23:1024;alias=92.225.199.53~1024~1;line=nnh95z41]
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_usrloc_pcscf [udomain.c:481]: get_pcontact(): Searching for
[sip:4989200011250@192.168.178.23:1024;alias=92.225.199.53~1024~1;line=nnh95z41]
and comparing to
[sip:4989200011250@192.168.178.23:1024;alias=92.225.215.38~1024~1;line=nnh95z41]
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_registrar_pcscf [service_routes.c:154]: getContactP(): Received
host len 13 (search 13)
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_registrar_pcscf [service_routes.c:159]: getContactP(): Received
host 92.225.215.38 (search 92.225.199.53)
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: WARNING:
ims_registrar_pcscf [service_routes.c:176]: getContactP(): Contact not
found based on Contact-header, trying IP/Port/Proto
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_usrloc_pcscf [usrloc.c:114]: get_aor_hash(): using host in lookup
[92.225.199.53]
Jun 9 00:02:48 voiceblue-2 /usr/sbin/kamailio[73629]: DEBUG:
ims_registrar_pcscf [service_routes.c:180]: getContactP(): No entry in
usrloc for 92.225.199.53:1024 (Proto 1) found!
I have to find a better way, to deal with NAT. I will continue working
on this on tuesday...
Thanks,
Carsten
2014-06-08 21:30 GMT+02:00 Jason Penton <jason.penton@gmail.com>:
You battling with nat?
On 6 Jun 2014 19:10, "Carsten Bock" <carsten@ng-voice.com> wrote:
Module: sip-router
Branch: master
Commit: a9155e4c73d533d0837bfd480ff7d838d18dc995
URL:
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=a9155e4c73d533d0837bfd480ff7d838d18dc995
Author: Carsten Bock <carsten@ng-voice.com>
Committer: Carsten Bock <carsten@ng-voice.com>
Date: Fri Jun 6 19:09:55 2014 +0200
ims_usrloc_pcscf: Add option, to disable the "received check" upon lookup.
---
.../doc/ims_usrloc_pcscf_admin.xml | 27
++++++++++++++++++++
modules/ims_usrloc_pcscf/udomain.c | 3 +-
modules/ims_usrloc_pcscf/ul_mod.c | 4 +++
3 files changed, 33 insertions(+), 1 deletions(-)
diff --git a/modules/ims_usrloc_pcscf/doc/ims_usrloc_pcscf_admin.xml
b/modules/ims_usrloc_pcscf/doc/ims_usrloc_pcscf_admin.xml
index 43c91f8..2bdb7c1 100644
--- a/modules/ims_usrloc_pcscf/doc/ims_usrloc_pcscf_admin.xml
+++ b/modules/ims_usrloc_pcscf/doc/ims_usrloc_pcscf_admin.xml
@@ -204,6 +204,33 @@ modparam("ims_usrloc_pcscf", "hashing_type", 1)
</programlisting>
</example>
</section>
+ <section>
+ <title>lookup_check_received (int)</title>
+
+ <para>If set to 1 (default), the Host in the contact will be
checked
+ against the Host, from which the request was received.</para>
+
+ <itemizedlist>
+ <listitem>
+ <para>0 - Upon lookup, do not check the host against
received.</para>
+ </listitem>
+
+ <listitem>
+ <para>1 - Compare the host in the contact against the received
info.</para>
+ </listitem>
+ </itemizedlist>
+
+ <para><emphasis>Default value is 1.</emphasis></para>
+
+ <example>
+ <title>Set lookup_check_received parameter</title>
+
+ <programlisting format="linespecific">...
+modparam("ims_usrloc_pcscf", "lookup_check_received", 0)
+...
+</programlisting>
+ </example>
+ </section>
</section>
<section>
diff --git a/modules/ims_usrloc_pcscf/udomain.c
b/modules/ims_usrloc_pcscf/udomain.c
index d655dea..e19b0f4 100644
--- a/modules/ims_usrloc_pcscf/udomain.c
+++ b/modules/ims_usrloc_pcscf/udomain.c
@@ -63,6 +63,7 @@
extern int db_mode;
extern unsigned int hashing_type;
+extern int lookup_check_received;
#ifdef STATISTICS
static char *build_stat_name( str* domain, char *var_name)
@@ -471,7 +472,7 @@ int get_pcontact(udomain_t* _d, str* _contact, struct
pcontact** _c) {
_contact->len,
_contact->s);
- if ((c->aorhash == aorhash) && (c->aor.len ==
_contact->len)
+ if (lookup_check_received && (c->aorhash == aorhash) &&
(c->aor.len == _contact->len)
&& !memcmp(c->aor.s, _contact->s,
_contact->len)) {
*_c = c;
return 0;
diff --git a/modules/ims_usrloc_pcscf/ul_mod.c
b/modules/ims_usrloc_pcscf/ul_mod.c
index 998d4bc..d9e2b08 100644
--- a/modules/ims_usrloc_pcscf/ul_mod.c
+++ b/modules/ims_usrloc_pcscf/ul_mod.c
@@ -85,6 +85,8 @@ int db_mode = 0;
/*!< Database sync scheme: 0-no db, 1-write throug
int ul_fetch_rows = 2000;
int hashing_type = 0;
/*!< has type for storing P-CSCF contacts - 0 - use full contact AOR, 1 -
use IP:PORT only */
+int lookup_check_received = 1;
/*!< Should we check received on lookup?
+
db1_con_t* ul_dbh = 0;
db_func_t ul_dbf;
@@ -109,6 +111,8 @@ static param_export_t params[] = {
{"timer_interval", INT_PARAM, &timer_interval },
{"db_mode", INT_PARAM, &db_mode },
{"hashing_type", INT_PARAM, &hashing_type },
+ {"lookup_check_received", INT_PARAM,
&lookup_check_received },
+
{0, 0, 0}
};
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