No matching endpoint found for OPTIONS request

[driverast]

What endpoint should I create to stop receiving such notice messages?

[Feb 19 10:32:26] DEBUG[1602] res_pjsip/pjsip_distributor.c: Calculated serializer pjsip/distributor-000002ab to use for Request msg OPTIONS/cseq=37085 (rdata0x7f20d806e348)
[Feb 19 10:32:26] DEBUG[15464] netsock2.c: Splitting '10.11.21.4' into...
[Feb 19 10:32:26] DEBUG[15464] netsock2.c: ...host '10.11.21.4' and port ''.
[Feb 19 10:32:26] DEBUG[15464] res_pjsip_endpoint_identifier_ip.c: No identify sections to match against
[Feb 19 10:32:26] DEBUG[15464] res_pjsip_endpoint_identifier_user.c: Attempting identify by From username '' domain '10.11.21.4'
[Feb 19 10:32:26] DEBUG[15464] res_pjsip_endpoint_identifier_user.c: Endpoint not found for From username '' domain '10.11.21.4'
[Feb 19 10:32:26] DEBUG[15464] res_pjsip_endpoint_identifier_ip.c: No identify sections to match against
[Feb 19 10:32:26] NOTICE[15464] res_pjsip/pjsip_distributor.c: Request 'OPTIONS' from '"sbc" <sip:10.11.21.4>' failed for '10.11.21.4:5060' (callid: 5b23bbc4-1-0-0@10.11.21.4) - No matching endpoint found```

[jcolp]

What is the endpoint in question? The easiest option would be an “identify” type to match based on source IP address, and then use a basic endpoint.

[driverast]

It turned out that my SIP provider is sending OPTION requests across the entire local subnet.
Notifications stopped appearing after creating anonymous endpoint:

[anonymous]
type=endpoint
disallow=all