Hi, Could anyone give me some specifics why i am seeing a lot of these kind of attack attemps on my asterisk log and what kind of attack this is? Should i be worried? -- end of packet. [2015-10-01 02:27:53] ERROR[2562] pjsip: sip_transport. Error processing 429 bytes packet from UDP 146.0.73.14:57944 : PJSIP syntax error exception when parsing 'Co ntact' header on line 4 col 11: REGISTER sip:xxx.xxx.xxx.xxx:5060 SIP/2.0 Via: SIP/2.0/UDP 146.0.73.14:57944;branch=z9hG4bK610f49168c4f609be09b7cdba3060815eb0bb516e23d1a0d3165409d761b78 Call-id: 206dbbcc476ab1413b663659b5e63d00 Contact: *C*# <sip:*C*#@146.0.73.14:57944> Cseq: 1 REGISTER Expires: 1800 From: *C*# <sip:*C*#@xxx.xxx.xxx.xxx:5060>;tag=52545f9b5db4f92d6eb52d4217d92bce Max-forwards: 70 To: *C*# <sip:*C*#@xxx.xxx.xxx.xxx:5060> Content-length: 0 -Markus Kovanen
