[Asterisk-Users] SPA 2000 and 404 not found

[Steve Rodgers]

I have a Sipura SPA2000 2 line SIP FXS box with line 1 on port 5060 and line 2 
on 5061. The SPA2000 is on IP address 192.168.17.6, and the asterisk box is 
on 102.168.17.2. Both SPA2000 ports(5060 and 5061) share the same IP address. 
Every minute I repeatedly get the following output:


SIP Debugging Enabled
10 headers, 0 lines
Reliably Transmitting:
OPTIONS sip:192.168.17.6 SIP/2.0
Via: SIP/2.0/UDP 192.168.17.2:5060;branch=z9hG4bK60fe7596
From: "asterisk" <sip:asterisk at 192.168.17.2>;tag=as1cf7898d
To: <sip:192.168.17.6>
Contact: <sip:asterisk at 192.168.17.2>
Call-ID: 21b130083154c5857b62f0386128fe01 at 192.168.17.2
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Content-Length: 0
                                                                                               
 (no NAT) to 192.168.17.6:5060
10 headers, 0 lines
Reliably Transmitting:
OPTIONS sip:192.168.17.6:5061 SIP/2.0
Via: SIP/2.0/UDP 192.168.17.2:5060;branch=z9hG4bK0178ca1c
From: "asterisk" <sip:asterisk at 192.168.17.2>;tag=as6a42fcc6
To: <sip:192.168.17.6:5061>
Contact: <sip:asterisk at 192.168.17.2>
Call-ID: 0e03dbf26416538d39ff24477a86d0fd at 192.168.17.2
CSeq: 102 OPTIONS
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
Content-Length: 0
                                                                                               
 (no NAT) to 192.168.17.6:5061
Sip read:
SIP/2.0 404 Not Found
To: <sip:192.168.17.6>
From: "asterisk" <sip:asterisk at 192.168.17.2>;tag=as1cf7898d
Call-ID: 21b130083154c5857b62f0386128fe01 at 192.168.17.2
CSeq: 102 OPTIONS
Via: SIP/2.0/UDP 192.168.17.2:5060;branch=z9hG4bK60fe7596
Server: Sipura/SPA2000-1.0.9
Content-Length: 0
                                                                                           

8 headers, 0 lines
Sip read:
SIP/2.0 404 Not Found
To: <sip:192.168.17.6:5061>
From: "asterisk" <sip:asterisk at 192.168.17.2>;tag=as6a42fcc6
Call-ID: 0e03dbf26416538d39ff24477a86d0fd at 192.168.17.2
CSeq: 102 OPTIONS
Via: SIP/2.0/UDP 192.168.17.2:5060;branch=z9hG4bK0178ca1c
Server: Sipura/SPA2000-1.0.9
Content-Length: 0
                                                                                               
                                                                                               
8 headers, 0 lines
                                                                                               
*CLI> sip no debug
SIP Debugging Disabled


Here's what's in sip.conf:

[general]
port=5060
bindaddr=192.168.17.2
tos=lowdelay
disallow=all
allow=ulaw
context=default
;
                                                                                
; SIP Entry for sipura line 1
; This phone is allowed to dial extensions and local phone numbers
;
[101]
type=friend
host=dynamic
context=house-toll
reinvite=no
canreinvite=no
qualify=300
secret=xxxxxx
callerid="Sipura Line 1" <101>
username=101
mailbox=101

; Sample for sipura line 2
; This phone is allowed to dial extensions and local phone numbers
;
[102]
type=friend
host=dynamic
context=house-toll
reinvite=no
canreinvite=no
qualify=300
secret=yyyyyy
callerid="Sipura Line 2" <102>
username=102
mailbox=102
nat=0


Note that 192.168.17.6:5061 seems to have a problem with "404 not found",
wheras 192.168.17.6:5060 does not.

Could Asterisk be getting confused about a device with two ports sharing the 
same IP address? I don't seem to be seeing any traffic being logged from the 
SPA2000 to Asterisk; it all seems to be going from 192.168.17.2 to 
192.168.17.6. If anyone could shed some light on what is going on here it 
would be sincerely appreciated.

Steve Rodgers
San Diego, CA