[Spce-user] Running CE behind an SBC

Daniel Grotti dgrotti at sipwise.com
Mon Jan 14 09:01:04 EST 2019


At a first sight looks like there is an issue in sems, not evaluating 
properly the headers.
I will open a DEV ticket to have a look at that.

Cheers,

-- 
Head of Customer Support                               Sipwise GmbH
e: dgrotti at sipwise.com                               Europaring F15
t: +43(0)130120332                          A-2345 Brunn Am Gebirge
w: www.sipwise.com          FN: 305595f      FG: LG Wiener Neustadt

On 1/14/19 1:37 PM, Daniel Grotti wrote:
> Hi,
> it says "404 Page not found"
>
> Cheers,
>
>
> -- 
> Head of Customer Support                               Sipwise GmbH
> e:dgrotti at sipwise.com                                Europaring F15
> t: +43(0)130120332                          A-2345 Brunn Am Gebirge
> w:www.sipwise.com           FN: 305595f      FG: LG Wiener Neustadt
> On 1/14/19 12:59 PM, Nerijus Barauskas wrote:
>> On Thu, 10 Jan 2019 at 16:50, Daniel Grotti <dgrotti at sipwise.com 
>> <mailto:dgrotti at sipwise.com>> wrote:
>>
>>     Hi Nerijus,
>>     it would be nice if you could share the full sip trace, in order
>>     to see
>>     also INVITE going from proxy->sems->lb->SBC
>>
>> Thank you Daniel, I have placed the pcap on https://file.io/6P7ssT
>>
>> Kind Regards,
>> Nerijus
>>
>>     Thanks,
>>
>>
>>     -- 
>>     Head of Customer Support  Sipwise GmbH
>>     e: dgrotti at sipwise.com <mailto:dgrotti at sipwise.com>              
>>              Europaring F15
>>     t: +43(0)130120332                          A-2345 Brunn Am Gebirge
>>     w: www.sipwise.com <http://www.sipwise.com>         FN: 305595f 
>>         FG: LG Wiener Neustadt
>>
>>     On 1/10/19 12:33 PM, Nerijus Barauskas wrote:
>>     > Hi,
>>     >
>>     > I have a CE mr6.5.2 running inside a private network. At the
>>     network
>>     > edge we have an SBC (IP YYY.YYY.YYY.YYY) which proxies the traffic
>>     > between the public network and the CE server.
>>     >
>>     > Phones (IP XXX.XXX.XXX.XXX) register via the SBC, which inserts
>>     a path
>>     > header and forwards to CE.
>>     >
>>     > Phones can make outound calls, but on inbound calls, CE ignores
>>     the
>>     > path and tries to send the call difrectly to the phone's IP
>>     > (XXX.XXX.XXX.XXX) present in the Contact.
>>     >
>>     > What appears to be happening is that the proxy is using the
>>     path to
>>     > send the request to the load balancer, but the rest of the path is
>>     > being ignored.
>>     >
>>     > Any hints appreciated.
>>     >
>>     > Below is the outbput of proxy ul show for the phone:
>>     >
>>     > # ngcp-kamctl proxy ul showphonetest at test.mydomain.com
>>     <mailto:showphonetest at test.mydomain.com>
>>     > {
>>     >   "AoR":"phonetest at test.mydomain.com
>>     <mailto:phonetest at test.mydomain.com>",
>>     >   "Contacts": [
>>     >     {
>>     >       "Contact": {
>>     >
>>     "Address":"sip:phonetest at XXX.XXX.XXX.XXX:7477;transport=UDP;rinstance=0478b7f3dd34e980",
>>     >         "Expires": 388,
>>     >         "Q": -1,
>>     >         "Call-ID": "GGGGdiKBxQABNklNSjpyiw..",
>>     >         "CSeq": 2,
>>     >         "User-Agent": "Zoiper rv2.9.2",
>>     >         "Received": "[not set]",
>>     >         "Path":
>>     > "<sip:lb at 127.0.0.1
>>     <mailto:sip%3Alb at 127.0.0.1>;lr;socket=sip:ZZZ.ZZZ.ZZZ.ZZZ:5060>,<sip:YYY.YYY.YYY.YYY;lr;received=sip:XXX.XXX.XXX.XXX:7477>",
>>     >         "State": "CS_SYNC",
>>     >         "Flags": 0,
>>     >         "CFlags": 0,
>>     >         "Socket": "udp:127.0.0.1:5062 <http://127.0.0.1:5062>",
>>     >         "Methods": 975,
>>     >         "Ruid": "uloc-5c35f1ac-1103-aa",
>>     >         "Instance": "[not set]",
>>     >         "Reg-Id": 0,
>>     >         "Server-Id": 0,
>>     >         "Tcpconn-Id": -1,
>>     >         "Keepalive": 0,
>>     >         "Last-Keepalive": 1547118521,
>>     >         "Last-Modified": 1547118521
>>     >       }
>>     >     }
>>     >   ]
>>     > }
>>     >
>>     >
>>     > Here is the REGISTER packet:
>>     >
>>     > 2019/01/10 11:08:41.546039 YYY.YYY.YYY.YYY:5060 ->
>>     ZZZ.ZZZ.ZZZ.ZZZ:5060
>>     > REGISTERsip:test.mydomain.com
>>     <http://test.mydomain.com>;transport=UDP SIP/2.0
>>     > Via: SIP/2.0/UDP
>>     >
>>     YYY.YYY.YYY.YYY;branch=z9hG4bKf8ec.1814ce53196f6e4039f3e2c7f94221dc.0
>>     > Via: SIP/2.0/UDP
>>     >
>>     100.115.92.2:41451;received=XXX.XXX.XXX.XXX;branch=z9hG4bK-524287-1---c067471c3487d2b7;rport=7477
>>     > Max-Forwards: 69
>>     >
>>     Contact:<sip:phonetest at XXX.XXX.XXX.XXX:7477;transport=UDP;rinstance=0478b7f3dd34e980>
>>
>>     >
>>     > To:<sip:phonetest at test.mydomain.com
>>     <mailto:sip%3Aphonetest at test.mydomain.com>;transport=UDP>
>>     > From:<sip:phonetest at test.mydomain.com
>>     <mailto:sip%3Aphonetest at test.mydomain.com>;transport=UDP>;tag=40d2244b
>>     > Call-ID: GGGGdiKBxQABNklNSjpyiw..
>>     > CSeq: 1 REGISTER
>>     > Expires: 60
>>     > Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS,
>>     > INFO, SUBSCRIBE
>>     > User-Agent: Zoiper rv2.9.2
>>     > Allow-Events: presence, kpml, talk
>>     > Content-Length: 0
>>     > Supported: path
>>     > Path:<sip:YYY.YYY.YYY.YYY;lr;received=sip:XXX.XXX.XXX.XXX:7477>
>>     >
>>     > Kind Regards,
>>     > Nerijus Barauskas
>>     >
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