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Re: CIDR - Router Efficiency improved 13 Years Ago by orwell84 Without CIDR, routers have to maintain a routing table … has the same path, this is inefficient. With CIDR, a router can summarize multiple entries that use the…the relationship between a customer and an ISP, and CIDR doesn't have to be used for default routes….0.0/0 is called). To sum up, CIDR is used to shorten routing tables when possible and… CIDR - Router Efficiency improved 13 Years Ago by rustysynate Hi, I searched the net about this question and could figure out exactly the answer to this. They say that CIDR will probably increase the efficiency of the router. If someone could enlighten me on this, it would be a great help to me. Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Dani Have you tried using explode()? function cidrToRange($cidr) { $range = array(); $cidr = explode('/', $cidr); $range[0] = long2ip((ip2long($cidr[0])) & ((-1 << (32 …1] = long2ip((ip2long($range[0])) + pow(2, (32 - (int)$cidr[1])) - 1); return $range; } var_dump(cidrToRange("73.35.143… Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by matei_ … <= $rangeEnd; $i ++) { $range[] = long2ip($i); } return $range; } else { return $cidr; } } $IPs = cidrToRange($pluginData -> ipAddresses); foreach($IPs as $IP) { echo… Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty …[] = long2ip($i); } return $range; } else { return $cidr; } } $ip_arr = array(); foreach($cidrs as $cidr) { array_merge(cidrToRange($cidr),$ip_arr); } echo '<ul>'; foreach($ip_arr… How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by matei_ …: I have a text area that is filled with IP/CIDR's and I want to know how I can retrieve… using $pluginData -> ipAddresses) I have, is filled with IP/CIDR that are separated by comma, such as: "32.89… Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty …(" ","",$cidrs)); foreach($cidrs as $cidr) { $begin_end = explode("/",$cidr); $ip_exp = explode(".",$begin_end[0]); $range[] = $begin_end… Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty …(" ","",$cidrs)); foreach($cidrs as $cidr) { $begin_end = explode("/",$cidr); $ip_exp = explode(".",$begin_end[0]); $range[0… Given a CIDR notation, print the range of the possible IP addresses. 12 Years Ago by andrewll2 This snippet converts a CIDR notated IP address to a range of IP addresses in decimal, dotted notation. Eg.: 192.168.1.255/31 => 192.168.1.254 - 192.168.1.255 Re: CIDR - Router Efficiency improved 13 Years Ago by jingda It is the easier allocations of IP address thus it is easier to find and access Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by pzuurveen Why not use [explode](https://www.php.net/manual/en/function.explode.php) Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty If theres discrepencies with spaces etc. I'd consider $ips = explode(",",str_replace(" ","",$field)); // Gives IP's foreach($ips as $key => $ip) { $range = explode("/",$ip); $ips[$key] = $range; } which will strip spaces out and then create an array of ip addresses… Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by ishu_1 <?php $lines = explode("\n", $instruction_textarea); if ( !empty($lines) ) echo '<ul>'; foreach ( $lines as $line ) echo '<li>'. trim( $line ) .'</li>'; echo '</ul>'; ?> Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty $cidrs is not defined yet. This would be for instance explode(",",$my_form_field) passing an array of ranges Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty Give me an 20 mins and I'll write something for you. Just got to finish what I'm on and push to live Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty What does `$pluginData` hold? if you pass a list of comma separated range values to the function it will return an array of ip addresses from all of the ranges Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty So if you var_dump the text field and it's an empty array it implies it has nothing in the textfield. I need to see more of how it's implemented Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty OH I see. That won't work then. Let me look up the calculations for the range Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty Got meetings for the next couple of hours. I'll post something as soon as I get chance Re: How to get IP from text area that contains multiple IPs and their CIDR? 2 Years Ago by Josh Connerty Glad to hear it :) Re: Given a CIDR notation, print the range of the possible IP addresses. 5 Years Ago by Dale_7 Hello, I have use of your code in a project. I want to know what license you prefer for this code. I'd like to put it in a library on GitHub. Would you prefer to do this? I'll help. Re: Given a CIDR notation, print the range of the possible IP addresses. 5 Years Ago by JamesCherrill Dani owns the copyright to everything on DaniWeb, but I'm sure she will be happy to permit you what you want for this piece of code. Use DaniWeb messaging to contact her directly. JC Critiques for my subnet calculator 14 Years Ago by schwarznavy ….%d.%d.%d/%d", $broadcast1,$broadcast2,$broadcast3,$broadcast4-1,$cidr); print "\n\tBroadcast address: \t\t\t$broadcast1.$…broadcast2.$broadcast3.$broadcast4/$cidr\n"; print "\n--------------------------------------------------------------------------\n"; print "\nHit… Reading and Understanding IP Ranges from RIR records 9 Years Ago by ademmeda …? 3) How do I convert the IP range info into CIDR notation? For example, there are two records: A) apnic|AU… following: A) 256 = 2^8 32-8 = 24 so the CIDR range is 1.0.0.0/24 B) 16384 = 2…^14 32-14 = 18 so the CIDR range is 1.0.64.0/18 Is that correct… Re: Reading and Understanding IP Ranges from RIR records 9 Years Ago by rch1231 …: [http://doc.m0n0.ch/quickstartpc/intro-CIDR.html](http://doc.m0n0.ch/quickstartpc/intro-CIDR.html) About the assigned vs allocated based… Prefilling text field in IE with VBA Excel 5 Years Ago by Start4me … on [this](https://www.ipaddressguide.com/cidr) website, under IP Range To CIDR. But my code won't enter …IE .Visible = True url = "https://www.ipaddressguide.com/cidr" .navigate (url) While IE.Busy DoEvents Wend Dim … Custom error checking 18 Years Ago by Killer_Typo ….Add( "192.168.1." + dblNET4); } /*end itteration*/ /*Show CIDR notation and #of Subnets*/ decimal decCIDR = 24 + decBitsToBorrow; txtCIDR.Text…}", decCIDR); txtSubNetShown.Text = Convert.ToString(lstNetAdd.Items.Count); /*end CIDR and subnets*/ }//endif [/code] on the top section where it… Sygate Firewall Help Please 18 Years Ago by phidelt649 …: US NetRange: 192.168.0.0 - 192.168.255.255 CIDR: 192.168.0.0/16 NetName: IANA-CBLK1 NetHandle: NET… 62.214.197.166 wants to send email through java 18 Years Ago by nizzy1115 …:43 NetRange: 62.0.0.0 - 62.255.255.255 CIDR: 62.0.0.0/8 NetName: RIPE-C3 NetHandle: NET… hosting reverse dns for partial IP block 15 Years Ago by crussell19 … dns query is failing. Anyone have the syntax for a CIDR partial block reverse zone? Thanks, Craig