It provides a defense mechanism to help separate traffic that is trusted, and traffic that is not trusted. The 3CX anti-hacking Blacklist / Whitelist mechanism does not replace a firewall. All traffic coming from this IP address range will be checked, anti hacking algorithms will come into effect and completely drop and ignore all packets from these IPs. Click on “ OK ” to create a Deny entry in the IP Blacklist.Enter a Description for this entry to help you remember why you added this entry, for example “Distributed attack coming from 41.202.x.x”.The range of IP addresses contained in this mask will be displayed below. Since we want to block all IP addresses that start with 41.202, we will select a Subnet Mask of 255.255.0.0.For this example we will enter 41.202.0.0. Enter the “ Network address ” which is the first address of the network range you want to block.From the drop down menu select “ Add a range of IP Addresses “.all the IP addresses that start with 41.202. You would, however, want to blacklist all the range, since you are sure that you will never get any traffic from these IP addresses. These two IP addresses have already been blacklisted by 3CX Phone System’s anti-hacking auto-detection mechanisms. Assume that there is a distributed attack coming from the following IP addresses – 41.202.160.2 and 41.202.191.5. All traffic originating from this IP address will be unchecked and the anti-hacking algorithms will not come into effect.īlocking an IP Address or a Range of IP Addresses Click on “ OK ” to create an Allow entry in the IP Blacklist for the whitelisted IP address.Add a description for the IP address, e.g.123.123.123.123 (you can also select to add a range of IP addresses using a subnet mask). From the dropdown menu select “ Add single IP Address ” and enter the IP address that you want to allow, e.g.Go to “Dashboard” > “IP Blacklist” in the 3CX Management Console.To add a whitelist for this IP address, you’ll need to do the following: Your remote office has a public IP address of 123.123.123.123. Let’s assume that you have a remote office connected to your 3CX Phone System. Adding a Whitelist Entry to 3CX Phone System
This article describes how to configure new whitelist and blacklist entries in 3CX Phone System. All traffic originating from blacklisted IP addresses will be dropped immediately. All traffic originating from whitelisted IP addresses will be allowed through unchecked by the anti-hacking features. Blocking an IP Address or a Range of IP AddressesģCX Phone System allows you to whitelist and blacklist IP addresses.
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