'; Calculate Subnet Network breakout CIDR Notation . } var x = readCookie('scrollx'); The app is provided as a trial version that can be activated by purchasing a full license during the trial period or after the trial expires. for(i=0;i<64;i++){ } return null; function change_BM_select(version,network_message,selected_index){ CIDR Support. IP subnet calculator IPv4 & IPng (IPv6) transform into : IP: netmask: subnet: broadcast : host from: to: #hosts: #IPs : Info. if (days) --> IPv6 CIDR and Subnet Calculator. IPv6 Subnet Calculator. 1. document.subnet_calculator_form.BM.options[i].text=values_v4[i] IPV4 is 32 bits and IPV6 is 128 bits. else if ( i == 16 ) --> var element=document.getElementById('selected_index' + i); } var values_v4=new Array("128.0.0.0 - 2.147.483.648 hosts","192.0.0.0 - 1.073.741.824 hosts","224.0.0.0 - 536.870.912 hosts","240.0.0.0 - 268.435.456 hosts","248.0.0.0 - 134.217.728 hosts","252.0.0.0 - 67.108.864 hosts","254.0.0.0 - 33.554.432 hosts","CLASS A","255.0.0.0 - 16.777.214 hosts","255.128.0.0 - 8.388.606 hosts","255.192.0.0 - 4.194.302 hosts","255.224.0.0 - 2.097.150 hosts","255.240.0.0 - 1.048.574 hosts","255.248.0.0 - 524.286 hosts","255.252.0.0 - 262.142 hosts","255.254.0.0 - 131.070 hosts","CLASS B","255.255.0.0 - 65.534 hosts","255.255.128.0 - 32766 hosts","255.255.192.0 - 16.382 hosts","255.255.224.0 - 8.190 hosts","255.255.240.0 - 4.094 hosts","255.255.248.0 - 2.046 hosts","255.255.252.0 - 1.022 hosts","255.255.254.0 - 510 hosts","CLASS C","255.255.255.0 - 254 hosts","255.255.255.128 - 126 hosts","255.255.255.192 - 62 hosts","255.255.255.224 - 30 hosts","255.255.255.240 - 14 hosts","255.255.255.248 - 6 hosts","255.255.255.252 - 2 hosts","255.255.255.254 - 0 hosts","255.255.255.255 - 0 hosts") The smallest subnet that is recommended for use in IPv6 is a /64! document.subnet_calculator_form.BM.options[i].value=values_v6[i] function SubmitSubnet_calculator_reverse_delegation() document.getElementById("RevDelLink").style.color='#de5308'; { { document.getElementById("address_list").submit(); { Address Range Start . This calculator can crash your browser if you attempt to have it calculate billions of subnets! Remember, the size of IPv6 can be huge. } function create_hidden_selected_index(){ Mask Bits. In a valid subnet mask network part is represented with "1" from left side followed and ended by host part "0" - 11111111.11111111.11111111.00000000 (binary form), 255.255.255.0 (dotted-decimal form) or simply "/24" (where 24 represents that subnet network part is 24 bits long). - bit identifying the network - bit identifying the subnet - bit identifying the host . Scan networks and ping 255 hosts quickly. if ( element ){ IPv6. var selIndex=parseInt(BM)-1; if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); document.getElementById("RevDelLinkRest").style.color='#de5308'; eraseCookie('scrolly') document.subnet_calculator_form.BM.options[selected_index].selected = true document.getElementById("RevDelLink").style.color='brown'; } Display. } else { } function SubmitSubnet_calculator_form_bin() Tells whether the IPs in network are private or public or link-local or loopback or reserved for multicast. } { if ( VALUE == "OVER") { if ( i == selected_index ) { document.subnet_calculator_form.BM.options[i].disabled=true document.subnet_calculator_form.BM.options[i].value=j eraseCookie('scrollx') document.subnet_calculator_form.BM.options[i].disabled=false { var x = (document.all)?document.body.scrollLeft:window.pageXOffset; --> for(i=0;i<64;i++){ IPV6 Subnet Calculator. Using color coding can visually see the bits of IPv6 ADDRESS that identifies the network, subnet and host. { window.scrollTo(x, y); document.subnet_calculator_form.BM.options[i].disabled=true document.subnet_calculator_form.ip_version[0].checked=true Therefore the concept of a subnet calculator is not as applicable to IPv6. for(i=0;i<34;i++){ return; The IPv6 Subnet Calculator is part of the Site24x7 range of tools. SUBNET CALCULATION. num_values = '128' This calculator can be used for IPv6 in the same way VLSM is used to plan an IPv4 network. { IPv6 networks do not use a subnet number or a broadcast address. function SubmitSubnet_address_list() Convert IPv6 CIDR notation. Calculate IPv6 subnet details, like wildcard mask, first and last host IPv6 address, network range, IPv6 DNS PTR record, embedded 6to4 prefix, embedded IPv4 mapped IPv6 and a lot of other useful info using this free online IPv6 Subnet Calculator tool. function checkRefresh(version,selected_index) { The subnet calculator makes it easy to generate Classless Interdomain Routing (CIDR) information also known as "supernetting" which allows multiple IP addresses (especially Class C) to be summarized into a smaller set of routing entries. //-->. element=''; for(i=0;i<35;i++){ else { if (version == 'v4') { } j++ In a subnet mask, binary 1 is equal to a match and binary 0 is not a match. IP address is a numerical value assigned to a device that uses Internet Protocol for communication. function ChangeRevDelAll(VALUE) document.subnet_calculator_form.ip_version[0].checked=true document.subnet_calculator_form.BM.length = num_values IPv6 CIDR and Subnet Calculator. IPv6 Subnet Calculator. 1. document.subnet_calculator_form.BM.options[i].text=values_v4[i] IPV4 is 32 bits and IPV6 is 128 bits. else if ( i == 16 ) --> var element=document.getElementById('selected_index' + i); } var values_v4=new Array("128.0.0.0 - 2.147.483.648 hosts","192.0.0.0 - 1.073.741.824 hosts","224.0.0.0 - 536.870.912 hosts","240.0.0.0 - 268.435.456 hosts","248.0.0.0 - 134.217.728 hosts","252.0.0.0 - 67.108.864 hosts","254.0.0.0 - 33.554.432 hosts","CLASS A","255.0.0.0 - 16.777.214 hosts","255.128.0.0 - 8.388.606 hosts","255.192.0.0 - 4.194.302 hosts","255.224.0.0 - 2.097.150 hosts","255.240.0.0 - 1.048.574 hosts","255.248.0.0 - 524.286 hosts","255.252.0.0 - 262.142 hosts","255.254.0.0 - 131.070 hosts","CLASS B","255.255.0.0 - 65.534 hosts","255.255.128.0 - 32766 hosts","255.255.192.0 - 16.382 hosts","255.255.224.0 - 8.190 hosts","255.255.240.0 - 4.094 hosts","255.255.248.0 - 2.046 hosts","255.255.252.0 - 1.022 hosts","255.255.254.0 - 510 hosts","CLASS C","255.255.255.0 - 254 hosts","255.255.255.128 - 126 hosts","255.255.255.192 - 62 hosts","255.255.255.224 - 30 hosts","255.255.255.240 - 14 hosts","255.255.255.248 - 6 hosts","255.255.255.252 - 2 hosts","255.255.255.254 - 0 hosts","255.255.255.255 - 0 hosts") The smallest subnet that is recommended for use in IPv6 is a /64! document.subnet_calculator_form.BM.options[i].value=values_v6[i] function SubmitSubnet_calculator_reverse_delegation() document.getElementById("RevDelLink").style.color='#de5308'; { { document.getElementById("address_list").submit(); { Address Range Start . This calculator can crash your browser if you attempt to have it calculate billions of subnets! Remember, the size of IPv6 can be huge. } function create_hidden_selected_index(){ Mask Bits. In a valid subnet mask network part is represented with "1" from left side followed and ended by host part "0" - 11111111.11111111.11111111.00000000 (binary form), 255.255.255.0 (dotted-decimal form) or simply "/24" (where 24 represents that subnet network part is 24 bits long). - bit identifying the network - bit identifying the subnet - bit identifying the host . Scan networks and ping 255 hosts quickly. if ( element ){ IPv6. var selIndex=parseInt(BM)-1; if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); document.getElementById("RevDelLinkRest").style.color='#de5308'; eraseCookie('scrolly') document.subnet_calculator_form.BM.options[selected_index].selected = true document.getElementById("RevDelLink").style.color='brown'; } Display. } else { } function SubmitSubnet_calculator_form_bin() Tells whether the IPs in network are private or public or link-local or loopback or reserved for multicast. } { if ( VALUE == "OVER") { if ( i == selected_index ) { document.subnet_calculator_form.BM.options[i].disabled=true document.subnet_calculator_form.BM.options[i].value=j eraseCookie('scrollx') document.subnet_calculator_form.BM.options[i].disabled=false { var x = (document.all)?document.body.scrollLeft:window.pageXOffset; --> for(i=0;i<64;i++){ IPV6 Subnet Calculator. Using color coding can visually see the bits of IPv6 ADDRESS that identifies the network, subnet and host. { window.scrollTo(x, y); document.subnet_calculator_form.BM.options[i].disabled=true document.subnet_calculator_form.ip_version[0].checked=true Therefore the concept of a subnet calculator is not as applicable to IPv6. for(i=0;i<34;i++){ return; The IPv6 Subnet Calculator is part of the Site24x7 range of tools. SUBNET CALCULATION. num_values = '128' This calculator can be used for IPv6 in the same way VLSM is used to plan an IPv4 network. { IPv6 networks do not use a subnet number or a broadcast address. function SubmitSubnet_address_list() Convert IPv6 CIDR notation. Calculate IPv6 subnet details, like wildcard mask, first and last host IPv6 address, network range, IPv6 DNS PTR record, embedded 6to4 prefix, embedded IPv4 mapped IPv6 and a lot of other useful info using this free online IPv6 Subnet Calculator tool. function checkRefresh(version,selected_index) { The subnet calculator makes it easy to generate Classless Interdomain Routing (CIDR) information also known as "supernetting" which allows multiple IP addresses (especially Class C) to be summarized into a smaller set of routing entries. //-->. element=''; for(i=0;i<35;i++){ else { if (version == 'v4') { } j++ In a subnet mask, binary 1 is equal to a match and binary 0 is not a match. IP address is a numerical value assigned to a device that uses Internet Protocol for communication. function ChangeRevDelAll(VALUE) document.subnet_calculator_form.ip_version[0].checked=true document.subnet_calculator_form.BM.length = num_values