cidr

Is there a way (or function/class) to get the list of IP addresses from a CIDR notation? For example, I have 73.35.143.32/27 CIDR and want to get the list of all IP's in this notation. Any suggestions? Thank you. jonavon I'll edit the aforementioned class to contain a method for that. Here is the code I came up with that might help you until then. function cidrToRange($cidr) { $range = array(); $cidr = explode('/', $cidr); $range[0] = long2ip((ip2long($cidr[0])) & ((-1 << (32 - (int)$cidr[1])))); $range[1] = long2ip((ip2long($range[0])) + pow(2, (32 - (int)$cidr[1])) - 1); return $range; } var

Something like SELECT COUNT(*) AS c FROM BANS WHERE typeid=6 AND (SELECT ipaddr,cidr FROM BANS) MATCH AGAINST 'this_ip'; So you don't first fetch all records from DB and then match them one-by one. If c > 0 then were matched. BANS table: id int auto incr PK typeid TINYINT (1=hostname, 4=ipv4, 6=ipv6) ipaddr BINARY(128) cidr INT host VARCHAR(255) DB: MySQL 5 IP and IPv type (4 or 6) is known when querying. IP is for example ::1 in binary format BANNED IP is for example ::1/64 Remember that IPs are not a textual address, but a numeric ID. I have a similar situation (we're doing geo-ip lookups),

I'm searching for a php algorithm that efficiently test if one cidr notated network overlaps another. Basically I have the following situation: Array of cidr adresses: $cidrNetworks = array( '192.168.10.0/24', '10.10.0.30/20', etc. ); I have a method that adds networks to the array, but this method should throw an exception when a network is added that overlaps with a network allready in the array. So ie. if 192.168.10.0/25 is added an exception should be thrown. Does anyone have/know/"can think of" an method to test this efficiently? Here is an updated version of the class previously

I am able to do this with IPv4 using code snippets from various online sources. I was wondering if there was a way to do it with IPv6. Basically I just need a form that I can enter an IPv6 address and prefix (ex: address/68) and it calculates the network address, first useable address, last useable address, and broadcast address. Then just prints to screen. Not looking to store it in a database or anything yet. How would I go about doing this? Thanks to everyone in advance! First of all: IPv6 doesn't have network and broadcast addresses. You can use all addresses in a prefix. Second: On a LAN

I am looking for an authoritative list of IP space Facebook uses. I need this to support a locked down developer environment that has very tight restrictions on outbound connectivity. Today I found api and graph.facebook.com started resolving to 69.171.224.0/19 which was not previously in my filters. I've updated it but I'd like to know what other IP space I'm missing allow rules for. Here's what I have currently. Any additional IP blocks you can list out would be great. Thanks everyone. 69.63.176.0/20 69.171.224.0/19 66.220.144.0/20 204.15.20.0/22 Igy The list from 2016-06-27 is: 31.13.24.0