25 Sep
2003
25 Sep
'03
10:29 p.m.
My understanding is that loose_route() checks for a Route header field. The
standard cfg entry will then relay the SIP request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my proxy
with a header: Route: <sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
Thanks in advance.
Dovid
29 Sep
29 Sep
10:29 p.m.
Any comments? (Pleeease.)
Dovid
-----Original Message-----
From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org]On
Behalf Of Dovid
Sent: Thursday, September 25, 2003 3:30 PM
To: Serusers
Subject: [Serusers] loose_route
My understanding is that loose_route() checks for a Route header field. The
standard cfg entry will then relay the SIP request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my proxy
with a header: Route: <sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
Thanks in advance.
Dovid
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serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers
30 Sep
30 Sep
9:06 a.m.
Dovid writes:
My understanding is that loose_route() checks for a
Route header field. The
standard cfg entry will then relay the SIP request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my proxy
with a header: Route: <sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
i call loose_route() in the beginning of ser.cfg before the user is
authenticated and approved for pstn access.
-- juha
4:40 p.m.
What if someone were to send an INVITE to your proxy with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy forward it, and the gateway
then set up the call?
Normally the request is directed to the proxy. The proxy then authenticates
before forwarding to the PSTN gateway. In the above example, there was a
Route header. In which case doesn't it mean
if (loose_route()) { #Route header exists.
t_relay(); #Forward now. Don't authenticate.
break;
};
Is my understanding of loose_route() wrong?
Thanks.
Dovid
-----Original Message-----
From: Juha Heinanen [mailto:jh@tutpro.com]
Sent: Tuesday, September 30, 2003 2:06 AM
To: Dovid
Cc: Serusers
Subject: RE: [Serusers] loose_route
Dovid writes:
My understanding is that loose_route() checks for a
Route header field.
The
standard cfg entry will then relay the SIP request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my
proxy
with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
i call loose_route() in the beginning of ser.cfg before the user is
authenticated and approved for pstn access.
-- juha
1 Oct
1 Oct
8:01 a.m.
Dovid writes:
Normally the request is directed to the proxy. The
proxy then authenticates
before forwarding to the PSTN gateway. In the above example, there was a
Route header. In which case doesn't it mean
if (loose_route()) { #Route header exists.
t_relay(); #Forward now. Don't authenticate.
break;
};
if i ware you, i would authenticate the request AFTER calling loose
route.
-- juha
2:37 p.m.
Yes, the proxy will forward the request to the PSTN gateway. In case of
loose routing, Request-URI doesn't always contain URI where the message
will be sent. In that case loose_route will return 1 and the condition
will be true.
Simply challenge the messages before forwarding them.
Jan.
On 30-09 09:40, Dovid wrote:
What if someone were to send an INVITE to your proxy
with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy forward it, and the gateway
then set up the call?
Normally the request is directed to the proxy. The proxy then authenticates
before forwarding to the PSTN gateway. In the above example, there was a
Route header. In which case doesn't it mean
if (loose_route()) { #Route header exists.
t_relay(); #Forward now. Don't authenticate.
break;
};
Is my understanding of loose_route() wrong?
Thanks.
Dovid
-----Original Message-----
From: Juha Heinanen [mailto:jh@tutpro.com]
Sent: Tuesday, September 30, 2003 2:06 AM
To: Dovid
Cc: Serusers
Subject: RE: [Serusers] loose_route
Dovid writes:
My understanding is that loose_route() checks for
a Route header field.
The
standard cfg entry will then relay the SIP
request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my
proxy
with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
i call loose_route() in the beginning of ser.cfg before the user is
authenticated and approved for pstn access.
-- juha
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serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers 
2 Oct
2 Oct
11:55 p.m.
What I do at iptel is:
if (loose_route()) {
if (uri=~"sip:[+0-9]+@mygw\.iptel\.org") {
/* if gateway in my request-uri, proceed to route[3] which
includes all ACL checks
*/
route(3);
} else {
append_hf("P-hint: rr-enforced\r\n");
t_relay();
};
break;
};
-jiri
At 03:40 PM 9/30/2003, Dovid wrote:
What if someone were to send an INVITE to your proxy
with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy forward it, and the gateway
then set up the call?
Normally the request is directed to the proxy. The proxy then authenticates
before forwarding to the PSTN gateway. In the above example, there was a
Route header. In which case doesn't it mean
if (loose_route()) { #Route header exists.
t_relay(); #Forward now. Don't authenticate.
break;
};
Is my understanding of loose_route() wrong?
Thanks.
Dovid
-----Original Message-----
From: Juha Heinanen [mailto:jh@tutpro.com]
Sent: Tuesday, September 30, 2003 2:06 AM
To: Dovid
Cc: Serusers
Subject: RE: [Serusers] loose_route
Dovid writes:
--
Jiri Kuthan http://iptel.org/~jiri/
My understanding is that loose_route() checks for
a Route header field.
The
standard cfg entry will then relay the SIP
request.
Let's take the following scenario. I have a PSTN gateway which listens on
port 5060 and accepts to that port only from my SIP proxy. Normally the
proxy takes care of authentication and authorization and if approved,
forwards to the gateway. What if someone were to send an INVITE to my
proxy
with a header: Route:
<sip:phone-number@pstn-gateway>? Would the proxy
forward it, and the gateway then set up the call?
i call loose_route() in the beginning of ser.cfg before the user is
authenticated and approved for pstn access.
-- juha
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6 comments
4 participants
participants (4)
-
Dovid -
Jan Janak -
Jiri Kuthan -
Juha Heinanen