$addrPrefix
Check whether the address matches the prefix (IPv4 Only)
Syntax:
$addrPrefix( Prefix ) $addrPrefix( Prefix, IPcheck )
Parameters:
Prefix – the network prefix (e.g:172.16.0.0/12 )
IPcheck – the IP address which should be checked. If the IPcheck is omitted, the source IP address of SIP packet is used.
Returns:
true – if the address IPcheck is in the range
false – otherwise
Version Since:
3.4.2.1
Where the function can be used:
- Preliminary rules
- Regular rules
Example:
$addrPrefix("10.0.0.0/8") = true
Check if the SIP packet’s sender IP address is in the prefix 10.0.0.0/8.
It is same as the following definition.
$addrPrefix("10.0.0.0/8",$addr) = true