SIP Protection & why it's IMPORTANT
SIP Protection & why it's IMPORTANT
Embedded Files
Cloud Kinnekt's SIP Protect Module provides protection from SIP attacks.
Brute-force break-in attempts and Denial of Service attacks are quite frequent and an unpredictable threat.
Unprotected CloudPBX systems are very sensitive to these kind of attacks.
The most common consequences of this kind of network attack are system downtime, call quality issues due to an overloaded network, direct financial loss due to network instability and unauthorised calls being made on your account to high call rate overseas countries.
Our SIP Protection Module's main purpose is to prevent those attacks.
Auto Provisioning Attack Detection
Auto-provisioning service is generally considered one of the most vulnerable spots of a CloudPBX system.
SIP Protect covers this segment as well through the integrated TFTP Brute Force attack detection. An active attacker can redirect profile provisioning request and change the configuration parameters. Then the attacker can redirect phone calls through a malicious server, change passwords, turn the phone into a bug, and exfiltrate system logs (including those numbers dialed by a user).
Advanced Threat Detection
Unlike other similar solutions, SIP Protect works with LIVE SIP traffic, constantly monitoring SIP packets being received.
Potential attacks are instantly detected and SIP Protect updates the firewall rules and blocks IP addresses from which the attack is coming for a specific amount of time, these are then listed in the table to the right and updated regularly.
To detect SIP attacks, SIP Protect uses the following advanced detection techniques: Pattern recognition, SIP Scanners protection (immediately blocking known SIP scanners), TFTP brute force protection, and SIP protocol anomaly detection.
Dynamic Blocking and Unblocking
SIP Protect features a fully automated attack protection system which blocks attacks more efficiently than most other solutions.
In the case of an attack, it updates the firewall rules and blocks IP addresses from which the attack is coming for a specific amount of time.
If attacks stop in a certain period of time, SIP Protect unblocks compromised IP addresses automatically.
Updated: 20/03/2026 0945 AEDT
Updated: 20/03/2026 0945 AEDT
SYD Cluster
SYD Cluster
IP Address
Country
Type
Device
Unblock In
BNE Cluster
BNE Cluster
IP Address
Country
Type
Device
Unblock In
58.84.136.28
Australia
REGISTER
17h 51m 32s
159.196.14.138
Australia
REGISTER
16h 42s
58.84.137.184
Australia
REGISTER
13h 46m 21s
146.88.22.30
Australia
REGISTER
12h 49m 2s
180.233.124.33
Australia
REGISTER
TP-Link SIP Stack V1.0.0
11h 13m 28s
203.56.146.124
Australia
REGISTER
TP-Link SIP Stack V1.0.0
10h 17m 42s
159.196.132.22
Australia
REGISTER
7h 51m 6s
60.240.160.226
Australia
REGISTER
SIP Dual Relay Controller/v20.1.
7h 41m 23s
58.84.136.114
Australia
REGISTER
Yealink SIP-T41S 66.86.0.15
7h 37m 50s
150.242.34.88
Australia
REGISTER
TP-Link SIP Stack V1.0.0
56m 5s
203.121.198.12
Australia
REGISTER
TP-Link SIP Stack V1.0.0
48m 10s
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