Hi list,

I have a customer with Astlinux 0.6.4 on a net5501, who was (not 
successfully) tested by a SIP-hacker:
----------------------------
Apr 12 14:49:40 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1345"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
Apr 12 14:49:40 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1346"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
Apr 12 14:49:40 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1347"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
Apr 12 14:49:40 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1348"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
Apr 12 14:49:41 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1349"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
Apr 12 14:49:41 asterisk local0.notice asterisk[1832]: NOTICE[1832]: 
chan_sip.c:15839 in handle_request_register: Registration from 
'"1350"<sip:1...@xxx.xxx.xxx.xxx>' failed for '92.243.9.47' - No 
matching peer found
----------------------------
And so on. There are about 65 SIP-checks per second (nice script).

I there anything one could do against this, except secure passwords 
and the blocked-hosts file in Astlinux?
I know there is a brute-force firewall-plugin for SSH in the 0.6 
branch, but I found nothing for SIP.
I saw a ids-protection plugin in trunk.

Michael

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