[Serusers] Server Error

Urvish Khandwalla Urvish.Khandwalla at colorado.edu
Thu Nov 27 08:46:23 CET 2003


Well, I activated the max forward check and also added the 'alias=
192.168.1.240' to the global config section of the ser.cfg. But I am still
getting "483 too many hops" I have disabled register for the time being. But
then i should be getting 404 and not 483 as you suggested.If its a problem of
local memory being overrun, how do i resolve this issue? 
Have attached the ser.cfg file for ref. Any comments? 
Regards and TIA,
Urvish



On Wednesday 26 November 2003 , Nils Olheimer wrote:
Simply Ser does not recognize, that 192.168.1.240 is its local name (probably 
because that IP is not resolvable via DNS). And, for whatever reason, you 
deactivated the maximum forward check. Thus the INVITE is forward in an 
endless loop to Ser itself (you can probably see that if you sniff on the 
loopback interface). Finaly the request is probably getting so big, that Ser 
is getting out of (local) memory.
1. activate the maximxum forward check in the begining of your route section. 
Then you should receive "483 Too Many Hops" instead of the 500.
2. add 'alias = 192.168.1.240' to your global config section, then Ser should 
recognize that the request is for the local proxy (and you will probably 
receive 404, because your phone is not regeistered)

Greets
  Nils

On Wednesday 26 November 2003 17:22, Urvish Khandwalla wrote:
> i have  a 6 line SIP phone. Its IP address is 192.168.1.159. Im placing a
> call to 5555 ( another line on the same phone). I have set the proxy for
> both the lines to my SERs IP address (192.168.1.240).I havent enabled
> register with proxy on the phone but i tried that before and that gave me
> the same server error as the one mentioned below.
>
> These are the packets that i have captured while making the call. Now the
> problem is that I am unable to understand the kind of internal
> error it is giving.
>
>
>     18 6.670873    192.168.1.159         192.168.1.240         SIP/SDP
> Request:
> INVITE sip:5555 at 192.168.1.240, with session description
>
>      19 6.671179    192.168.1.240         192.168.1.159         SIP
> Status:
> 100 trying -- your call is important to us
>
>      20 6.732622    192.168.1.240         192.168.1.159         SIP
> Status:
> 500 I'm terribly sorry, server error occured (2/TM)
>
>      21 6.801520    192.168.1.159         192.168.1.240         SIP
> Request: ACK sip:5555 at 192.168.1.240
>
>
> Also the SIP message header of Packet 20 , as shown below, talks about
> warning 392. Does anyone know what warning it is?
>
> FRAME 20:
> Session Initiation Protocol
>     Status line: SIP/2.0 500 I'm terribly sorry, server error occured
> (2/TM) Message Header
>         Via: SIP/2.0/UDP 192.168.1.159:5060
>         From: "in2"
> <sip:in2 at 192.168.1.240>;tag=00036b3c33b500071afb6b0a-38f8c47a
>         To:
> <sip:5555 at 192.168.1.240>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-188d
Call-ID:
> 00036b3c-33b50007-2047443d-0967cdd3 at 192.168.1.159 CSeq: 101 INVITE
>         Server: Sip EXpress router (0.8.11 (i386/linux))
>         Content-Length: 0
>         Warning: 392 192.168.1.240:5060 "Noisy feedback tells:  pid=925
> req_src_ip=192.168.1.240 req_src_port=5060 in_uri=sip:5555 at 192.168.1.240
> out_uri=sip:5555 at 192.168.1.240 via_cnt==112"
>
>
> I have attached my ser.sfg for your reference.
> TIA,
> Urvish Khandwalla




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