[Spce-user] Critical error in proxy

[Henk]

I'm on SPCE 5.5.2 and see critical errors in the (anonymized) proxy log:

Feb  3 01:09:28 spce proxy[3409]: NOTICE: <script>: New request on proxy 
- M=ACK R=sip:ngcp-lb at 192.168.1.50:5160;ngcpct=736970xxxxx 
F=sip:nnnnnnnnnn at spce.vdx.nl:5160 T=sip:nnnnnnnnnn at spce.vdx.nl 
IP=n.n.n.n:5160 (127.0.0.1:5060) 
ID=4a8b73466811fda022da8fdb3fdc5206 at spce.vdx.nl UA='FPBX-14.0.1.20(13.18.3)'
Feb  3 01:09:28 spce proxy[3409]: ERROR: <core> [udp_server.c:548]: 
udp_send(): sendto(sock,0x7f3abc665438,1117,0,192.168.1.50:5160,16): 
Invalid argument(22)
Feb  3 01:09:28 spce proxy[3409]: CRITICAL: <core> [udp_server.c:553]: 
udp_send(): invalid sendtoparameters#012one possible reason is the 
server is bound to localhost and#012attempts to send to the net
Feb  3 01:09:28 spce proxy[3409]: ERROR: <core> [forward.h:201]: 
msg_send_buffer(): udp_send failed
Feb  3 01:09:28 spce proxy[3409]: ERROR: sl [sl_funcs.c:363]: 
sl_reply_error(): ERROR: sl_reply_error used: Unfortunately error on 
sending to next hop occurred (477/SL)
Feb  3 01:09:28 spce proxy[3409]: NOTICE: <script>: [dialog:failed] 
decreased redis counters 
lua_dlg_callid:[4a8b73466811fda022da8fdb3fdc5206 at spce.vdx.nl] - 
R=sip:ngcp-lb at 192.168.1.50:5160;ngcpct=736970xxxxxxxx 
ID=4a8b73466811fda022da8fdb3fdc5206 at spce.vdx.nl UA='FPBX-14.0.1.20(13.18.3)'

The source of the problem seems to be, that the client sends a CANCEL 
with a VIA header containing a local address:

Via: SIP/2.0/UDP 192.168.1.50:5160;branch=z9hG4bK639a0a76;rport

As a result, the call is not canceled on the provider side, but billing 
stops!

Hope someone can help me,

Henk Plessius

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