[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-1-en-105":3,"doc-seo-571404-105":53,"doc-detail-571404-en":127},{"code":4,"msg":5,"data":6},0,"success",[7,14,19,24,29,34,39,44,49],{"id":8,"doc_module":9,"doc_module_name":10,"category_name":11,"show_sort_weight":12,"slug":13},11,1,"Template","Presentations",90,"presentations",{"id":15,"doc_module":9,"doc_module_name":10,"category_name":16,"show_sort_weight":17,"slug":18},12,"Resumes",80,"resumes",{"id":20,"doc_module":9,"doc_module_name":10,"category_name":21,"show_sort_weight":22,"slug":23},14,"Invoices",70,"invoices",{"id":25,"doc_module":9,"doc_module_name":10,"category_name":26,"show_sort_weight":27,"slug":28},15,"Posters",60,"posters",{"id":30,"doc_module":9,"doc_module_name":10,"category_name":31,"show_sort_weight":32,"slug":33},16,"Social Media",50,"social-media",{"id":35,"doc_module":9,"doc_module_name":10,"category_name":36,"show_sort_weight":37,"slug":38},17,"Forms",40,"forms",{"id":40,"doc_module":9,"doc_module_name":10,"category_name":41,"show_sort_weight":42,"slug":43},18,"Letters",30,"letters",{"id":45,"doc_module":9,"doc_module_name":10,"category_name":46,"show_sort_weight":47,"slug":48},21,"Paper Templates",5,"papers-templates",{"id":50,"doc_module":9,"doc_module_name":10,"category_name":51,"show_sort_weight":4,"slug":52},158,"General","general-158",{"code":4,"msg":54,"data":55},"ok",{"site_id":56,"language":57,"slug":58,"title":59,"keywords":60,"description":61,"schema_data":62,"social_meta":120,"head_meta":122,"extra_data":124,"updated_unix":126},105,"en","network-cheat-sheet-ipv4-ipv6-cidr-and-subnetting","Network Cheat Sheet - IPv4, IPv6, CIDR, and Subnetting","","Network Cheat Sheet provides a fast-reference guide to IPv4 and core IP addressing concepts, including IPv4 address format and class ranges, CIDR notation, subnet masks, wildcard masks, and key special-purpose addresses. It explains subnetting math for calculating number of subnets and usable hosts, offers concrete examples for splitting a /24 into /26 and /30, and summarizes reserved and private address ranges such as RFC 1918, along with bogon and test-documentation blocks.",{"@graph":63,"@context":119},[64,80,102],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":11,"@type":70,"position":76},"https://docshare.wps.com/template/presentations/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/network-cheat-sheet-ipv4-ipv6-cidr-and-subnetting/571404/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/network-cheat-sheet-ipv4-ipv6-cidr-and-subnetting/571404.png","ImageObject",442,249,{"name":88,"@type":89},"Rowan","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-23","2026-10-13",true,{"@type":98,"interactionType":99,"userInteractionCount":101},"InteractionCounter",{"@type":100},"ViewAction",6,{"@type":103,"mainEntity":104},"FAQPage",[105,111,115],{"name":106,"@type":107,"acceptedAnswer":108},"What is the IPv4 address format and valid range?","Question",{"text":109,"@type":110},"An IPv4 address uses four octets (32 bits), such as 192.168.1.1. The range spans from 0.0.0.0 to 255.255.255.255.","Answer",{"name":112,"@type":107,"acceptedAnswer":113},"How do CIDR prefixes relate to subnet masks?",{"text":114,"@type":110},"CIDR notation like /24 corresponds to a specific subnet mask (e.g., 255.255.255.0). The document lists subnet masks for many prefix lengths and also includes wildcard mask conversion.",{"name":116,"@type":107,"acceptedAnswer":117},"How are subnet counts and usable host counts calculated for subnetting?",{"text":118,"@type":110},"The number of subnets is 2^n, where n is the number of borrowed host bits. Hosts per subnet is 2^h - 2, where h is the number of host bits after borrowing (subtracting network and broadcast).","https://schema.org",{"og:url":78,"og:type":121,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":123,"canonical":78},"index,follow",{"doc_id":125,"site_id":56},571404,1792033346,{"code":4,"msg":5,"data":128},{"doc_id":125,"user_id":129,"nickname":88,"user_avatar":130,"doc_module":9,"category_id":8,"category_name":11,"doc_title":59,"doc_description":61,"doc_content":131,"file_id":132,"file_url":133,"file_type":134,"file_size":135,"view_count":101,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":136,"language":137,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":138,"faqs":139,"seo_title":140,"seo_description":61,"update_tm":141,"read_time":142},1099514067415,"https://ap-avatar.wpscdn.com/avatar/100002539d78ffe74a7?x-image-process=image/resize,m_fixed,w_180,h_180&k=1779092875211072502","Network Cheat Sheet IPv4, IPv6, CIDR, and Subnetting  \nIPv4 Cheat sheet Basics  \n● Address format: Four octets (32 bits), e.g., 192.168.1.1.  \n● Range: 0.0.0.0 to 255.255.255.255.  \n● Classes:  \n○ Class A: 1.0.0.0-126.255.255.255 (/8)  \n○ Class B: 128.0.0.0-191.255.255.255 (/16)  \n○ Class C: 192.0.0.0-223.255.255.255 (/24)  \n○ Class D: Multicast (224 .0.0.0-239.255.255. 255)  \n○ Class E: Experimental (240 .0.0.0-255.255.255. 255) IPv4 Subnet Masks  \nCIDR Notation Subnet Mask Wildcard Mask Hosts  \n/0 0.0.0.0 255.255.255.255 4,294,967,294  \n/1  \n/2  \n/3  \n/4  \n/5  \n/6  \n/7  \n128.0.0.0  \n192.0.0.0 224.0.0.0  \n240.0.0.0  \n248.0.0.0  \n252.0.0.0  \n254.0.0.0  \n127.255.255.255 63.255.255.255 31.255.255.255 15.255.255.255 7.255.255.255 3.255.255.255 1.255.255.255  \n2, 147,483,646 1,073,741,822 536,870,910 268,435,454 134,217,726 67, 108,862 33,554,430  \n\n|  |  |  |  |\n| --- | --- | --- | --- |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n|  |  |  |  |\n\n| /8 | 255.0.0.0 | 0.255.255.255 | 16,777,214 |\n| --- | --- | --- | --- |\n| /9 | 255.128.0.0 | 0.127.255.255 | 8,388,606 |\n| /10 | 255.192.0.0 | 0.63.255.255 | 4, 194,302 |\n| /11 | 255.224.0.0 | 0.31.255.255 | 2,097, 150 |\n| /12 | 255.240.0.0 | 0.15.255.255 | 1,048,574 |\n| /13 | 255.248.0.0 | 0.7.255.255 | 524,286 |\n| /14 | 255.252.0.0 | 0.3.255.255 | 262, 142 |\n| /15 | 255.254.0.0 | 0.1.255.255 | 131,070 |\n| /16 | 255.255.0.0 | 0.0.255.255 | 65,534 |\n| /17 | 255.255.128.0 | 0.0.127.255 | 32,766 |\n| /18 | 255.255.192.0 | 0.0.63.255 | 16,382 |\n| /19 | 255.255.224.0 | 0.0.31.255 | 8, 190 |\n| /20 | 255.255.240.0 | 0.0.15.255 | 4,094 |\n| /21 | 255.255.248.0 | 0.0.7.255 | 2,046 |\n| /22 | 255.255.252.0 | 0.0.3.255 | 1,022 |\n| /23 | 255.255.254.0 | 0.0.1.255 | 510 |\n| /24 | 255.255.255.0 | 0.0.0.255 | 254 |\n| /25 | 255.255.255.128 | 0.0.0.127 | 126 |\n| /26 | 255.255.255.192 | 0.0.0.63 | 62 |\n| /27 | 255.255.255.224 | 0.0.0.31 | 30 |\n| /28 | 255.255.255.240 | 0.0.0.15 | 14 |\n| /29 | 255.255.255.248 | 0.0.0.7 | 6 |\n| /30 | 255.255.255.252 | 0.0.0.3 | 2 |\n| /31 | 255.255.255.254 | 0.0.0.1 | Used for p2p links |\n| /32 | 255.255.255.255 | 0.0.0.0 | Single host (1 IP ) |\n\nWildcard Masks  \n● Used in ACLs to specify IP ranges.  \n● Formula: Wildcard = 255-Subnet Mask.  \nIPv4 Special IPs  \n● 0.0.0.0: Default route (any network) .  \n● 127.0.0. 1: Loopback (localhost) .  \n● 169.254.0.0/16: APIPA (Auto-assigned when DHCP fails) .  \n● 192.168.0.0/16: Private range (used for internal networks) .  \n● Broadcast Address: Last address in the subnet (e.g., 192.168.1. 255 for /24) . IPv4 Subnetting Formula  \n● Number of Subnets: 2^n (where n is the number of borrowed host bits) .  \n● Hosts per Subnet: 2^h-2 (where h is the number of host bits, subtracting network and broadcast) .  \nIPv4 Subnetting Example  \nDivide a /24 into /26:  \n● Original: 192.168.1.0/24 (254 hosts) .  \n● Subnets: 192.168.1.0/26, 192.168.1.64/26, 192.168.1. 128/26, 192.168.1. 192/26 .  \n● Hosts per subnet: 62 usable hosts.  \nDivide a /24 into /30 (for point-to-point connections):  \n● Original: 192.168.1.0/24 .  \n● Creates 64 subnets, each with 2 usable hosts:  \n○ Subnet 1: 192.168.1.0/30  \n○ Subnet 2: 192.168.1.4/30  \n○ Subnet 3: 192.168.1.8/30  \nReserved IP Addresses  \n● Network Address: First address in a subnet (e.g., 192.168.1.0 in /24) .  \n● Broadcast Address: Last address in a subnet (e.g., 192.168.1.255 in /24) .  \nPrivate IPv4 Address Ranges  \nClass  \nClass A  \nClass B  \nClass C  \nBogon IPv4 addresses  \nBogon IP Range  \n0.0.0.0/8 10.0.0.0/8 100.64.0.0/10 127.0.0.0/8 169.254.0.0/16 172.16.0.0/12 192.0.0.0/24 192.0.2.0/24  \n192.168.0.0/16  \nCIDR Notation  \n0.0.0.0/8 10.0.0.0/8 100.64.0.0/10 127.0.0.0/8 169.254.0.0/16 172.16.0.0/12 192.0.0.0/24 192.0.2.0/24  \n192.168.0.0/16  \nRange  \n10.0.0.0 to 10.255.255.255  \n172.16.0.0 to 172.31.255.255  \n192.168.0.0 to 192.168.255.255  \nNotes  \n\"This\" network, used for routing Private network ( RFC 1918) Carrier-grade NAT ( RFC 6598) Loopback addres","cbCaih9l2yxlyAbH","https://ap.wps.com/l/cbCaih9l2yxlyAbH","pdf",2069284,22,"English","# IPv4 Cheat Sheet Basics\n## IPv4 Address Format and Classes\n## IPv4 Subnet Masks and CIDR Notation\n## Wildcard Masks and Special IPs\n# IPv4 Subnetting\n## Subnetting Formulas\n## Subnetting Examples (/26 and /30)\n## Reserved and Private Address Ranges\n# Common IPv4 Concepts and Tools\n## DHCP, NAT, and ARP\n## IPv4 Commands (Windows and Linux/macOS)","[{\"question\":\"What is the IPv4 address format and valid range?\",\"answer\":\"An IPv4 address uses four octets (32 bits), such as 192.168.1.1. The range spans from 0.0.0.0 to 255.255.255.255.\"},{\"question\":\"How do CIDR prefixes relate to subnet masks?\",\"answer\":\"CIDR notation like /24 corresponds to a specific subnet mask (e.g., 255.255.255.0). The document lists subnet masks for many prefix lengths and also includes wildcard mask conversion.\"},{\"question\":\"How are subnet counts and usable host counts calculated for subnetting?\",\"answer\":\"The number of subnets is 2^n, where n is the number of borrowed host bits. Hosts per subnet is 2^h - 2, where h is the number of host bits after borrowing (subtracting network and broadcast).\"}]","Network Cheat Sheet - IPv4, IPv6, CIDR, and Subnetting | PDF",1791915946,8]