var selIndex=BM; } document.subnet_calculator_form.ip_version[0].checked=true Therefore the concept of a subnet calculator is not as applicable to IPv6. var ca = document.cookie.split(';'); The subnet calculator allows a subnet ID to have its final octet equal to the final octet of its subnet mask - for example, a class C network address of 192.168.0.192 with a subnet mask of 255.255.255.192 is permitted. IP Subnet Calculator for IPv4 and IPv6 IP Ping tool. document.subnet_calculator_form.ip_version[1].checked=true } if ( element ){ } document.subnet_calculator_form.red.maxLength='256' document.subnet_calculator_form.BM.options[i].disabled=false document.subnet_calculator_form.BM.options[i].disabled=true --> function create_hidden_selected_index_static(BM,IP_VERSION){ } IPv6 subnets discovery. document.subnet_calculator_form.BM.options[i].value=j 1. } { } var date = new Date(); num_values = '128' Input an IPv6 address and the subnet size in slash notation: Select a number of subnets or a subnet size to divide the above into: This calculator can be used for IPv6 in the same way VLSM is used to plan an IPv4 network. { document.subnet_calculator_form.red.maxLength='256' document.getElementById('selected_indexA').innerHTML = ''; document.subnet_calculator_form.BM.options[i].text=values_v6[i] 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. This is a subnet from aggregate calculator for IPv6. Tells whether the IPs in network are private or public or link-local or loopback or reserved for multicast. IPv4 CIDR and Subnet Calculator. else if ( i == 16 ) if ( element ){ document.getElementById('selected_indexB').innerHTML = ''; } var values_v6=new Array("1 (9,223,372,036,854,775,808 " + network_message + ")","2 (4,611,686,018,427,387,904 " + network_message + ")","3 (2,305,843,009,213,693,952 " + network_message + ")","4 (1,152,921,504,606,846,976 " + network_message + ")","5 (576,460,752,303,423,488 " + network_message + ")","6 (288,230,376,151,711,744 " + network_message + ")","7 (144,115,188,075,855,872 " + network_message + ")","8 (72,057,594,037,927,936 " + network_message + ")","9 (36,028,797,018,963,968 " + network_message + ")","10 (18,014,398,509,481,984 " + network_message + ")","11 (9,007,199,254,740,992 " + network_message + ")","12 (4,503,599,627,370,496 " + network_message + ")","13 (2,251,799,813,685,248 " + network_message + ")","14 (1,125,899,906,842,624 " + network_message + ")","15 (562,949,953,421,312 " + network_message + ")","16 (281,474,976,710,656 " + network_message + ")","17 (140,737,488,355,328 " + network_message + ")","18 (70,368,744,177,664 " + network_message + ")","19 (35,184,372,088,832 " + network_message + ")","20 (17,592,186,044,416 " + network_message + ")","21 (8,796,093,022,208 " + network_message + ")","22 (4,398,046,511,104 " + network_message + ")","23 (2,199,023,255,552 " + network_message + ")","24 (1,099,511,627,776 " + network_message + ")","25 (549,755,813,888 " + network_message + ")","26 (274,877,906,944 " + network_message + ")","27 (137,438,953,472 " + network_message + ")","28 (68,719,476,736 " + network_message + ")","29 (34,359,738,368 " + network_message + ")","30 (17,179,869,184 " + network_message + ")","31 (8,589,934,592 " + network_message + ")","32 (4,294,967,296 " + network_message + ")","33 (2,147,483,648 " + network_message + ")","34 (1,073,741,824 " + network_message + ")","35 (536,870,912 " + network_message + ")","36 (268,435,456 " + network_message + ")","37 (134,217,728 " + network_message + ")","38 (67,108,864 " + network_message + ")","39 (33,554,432 " + network_message + ")","40 (16,777,216 " + network_message + ")","41 (8,388,608 " + network_message + ")","42 (4,194,304 " + network_message + ")","43 (2,097,152 " + network_message + ")","44 (1,048,576 " + network_message + ")","45 (524,288 " + network_message + ")","46 (262,144 " + network_message + ")","47 (131,072 " + network_message + ")","48 (65,536 " + network_message + ")","49 (32,768 " + network_message + ")","50 (16,384 " + network_message + ")","51 (8,192 " + network_message + ")","52 (4,096 " + network_message + ")","53 (2,048 " + network_message + ")","54 (1,024 " + network_message + ")","55 (512 " + network_message + ")","56 (256 " + network_message + ")","57 (128 " + network_message + ")","58 (64 " + network_message + ")","59 (32 " + network_message + ")","60 (16 " + network_message + ")","61 (8 " + network_message + ")","62 (4 " + network_message + ")","63 (2 " + network_message + ")","64 (18,446,744,073,709,551,616 addresses)","65 (9,223,372,036,854,775,808 addresses)","66 (4,611,686,018,427,387,904 addresses)","67 (2,305,843,009,213,693,952 addresses)","68 (1,152,921,504,606,846,976 addresses)","69 (576,460,752,303,423,488 addresses)","70 (288,230,376,151,711,744 addresses)","71 (144,115,188,075,855,872 addresses)","72 (72,057,594,037,927,936 addresses)","73 (36,028,797,018,963,968 addresses)","74 (18,014,398,509,481,984 addresses)","75 (9,007,199,254,740,992 addresses)","76 (4,503,599,627,370,496 addresses)","77 (2,251,799,813,685,248 addresses)","78 (1,125,899,906,842,624 addresses)","79 (562,949,953,421,312 addresses)","80 (281,474,976,710,656 addresses)","81 (140,737,488,355,328 addresses)","82 (70,368,744,177,664 addresses)","83 (35,184,372,088,832 addresses)","84 (17,592,186,044,416 addresses)","85 (8,796,093,022,208 addresses)","86 (4,398,046,511,104 addresses)","87 (2,199,023,255,552 addresses)","88 (1,099,511,627,776 addresses)","89 (549,755,813,888 addresses)","90 (274,877,906,944 addresses)","91 (137,438,953,472 addresses)","92 (68,719,476,736 addresses)","93 (34,359,738,368 addresses)","94 (17,179,869,184 addresses)","95 (8,589,934,592 addresses)","96 (4,294,967,296 addresses)","97 (2,147,483,648 addresses)","98 (1,073,741,824 addresses)","99 (536,870,912 addresses)","100 (268,435,456 addresses)","101 (134,217,728 addresses)","102 (67,108,864 addresses)","103 (33,554,432 addresses)","104 (16,777,216 addresses)","105 (8,388,608 addresses)","106 (4,194,304 addresses)","107 (2,097,152 addresses)","108 (1,048,576 addresses)","109 (524,288 addresses)","110 (262,144 addresses)","111 (131,072 addresses)","112 (65,536 addresses)","113 (32,768 addresses)","114 (16,384 addresses)","115 (8,192 addresses)","116 (4,096 addresses)","117 (2,048 addresses)","118 (1,024 addresses)","119 (512 addresses)","120 (256 addresses)","121 (128 addresses)","122 (64 addresses)","123 (32 addresses)","124 (16 addresses)","125 (8 addresses)","126 (4 addresses)","127 (2 addresses)","128 (1 address)") ; Input example: 2001: DB8::140B/33.To find out the of. 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