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It explains private addressing blocks from RFC 1918 and clarifies Inside Local, Inside Global, Outside Local, and Outside Global address meanings. The sheet covers three NAT types: Static NAT, Dynamic NAT, and Port Address Translation (PAT/overloading). 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Inside Global is the corresponding IP address as it appears on the outside network.",{"name":115,"@type":106,"acceptedAnswer":116},"Which NAT types are covered, and what does PAT do?",{"text":117,"@type":109},"The cheat sheet covers Static NAT, Dynamic NAT, and Port Address Translation. PAT translates multiple local addresses to a single global address by using different ports.","https://schema.org",{"og:url":78,"og:type":120,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":122,"canonical":78},"index,follow",{"doc_id":124,"site_id":56},573783,1792113466,{"code":4,"msg":5,"data":127},{"doc_id":124,"user_id":128,"nickname":88,"user_avatar":129,"doc_module":9,"category_id":50,"category_name":51,"doc_title":59,"doc_description":61,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":76,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":76,"language":135,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":61,"update_tm":139,"read_time":9},13056703019404,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","www howtonetwork com  \n. .  \nCCNA: NAT CHEAT SHEET  \nCCNA: NAT CHEAT SHEET  \n| Key Characteristics |\n| --- |\n| Standard: RFC 3022 |\n| Short term solution to overcome the address requirement to connect with internet |\n| Enables an organization to use Private Addressing Scheme (defined in RFC 1918) and still connect to the internet |\n| Private Address Space |\n| Private IP addressing is defined in RFC 1918 according which the following IP address blocks can be used within an organization for private use:\u003Cbr>1. [10.0.0.0](10.0.0.0) / 8 2. [172.16.0.0](172.16.0.0) / 12\u003Cbr>3. [192.168.0.0](192.168.0.0) / 16 |\n| NAT Address Types |\n| Inside Local Address: the IP Address assigned to the host on the inside network. This address is usually from the RFC 1918 Private address space. |\n| Inside Global Address: It is the IP address of an inside host (or a group of hosts) as it appears to the outside network. It is usually an address that is globally routable. |\n| Outside Local Address: the IP address assigned to an outside host as it appears to the inside network. The address is allocated from an address space routable on inside network |\n| Outside Global Address: the IP address of an outside host assigned by the owner/administrator of the host. Allocated from a globally routable address space |\n| Types of NAT |\n| There are 3 types:\u003Cbr>1. Static NAT\u003Cbr>A single local IP address is mapped to single global IP address. Also called one-to-one NAT |\n| 2. Dynamic NAT\u003Cbr>A pool of global addresses is used to translate local IP addresses. Each inside host is assigned a global address for the duration of the session. If the session is timed-out, the specific IP address is available to use for other inside hosts |\n| 3. Port Address Translation\u003Cbr>Also called overloading NAT. If a large number of host need to access the internet, then static and dynamic NAT are not feasible solutions as a large number of public IP addresses will be required. PAT actually translates multiple local addresses to a single global address using different ports. |\n| |\n| Configuration Example: Static NAT |\n| Router R1:\u003Cbr>interface fastethernet0/1\u003Cbr>ip address [192.168.1.1](192.168.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat inside!\u003Cbr>interface fastethernet0/0\u003Cbr>ip address [10.1.1.1](10.1.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat outside!\u003Cbr>ip nat inside source static [192.168.1.10](192.168.1.10) [172.16.1.1](172.16.1.1) |\n\nCCNA: NAT CHEAT SHEET  \n| R1\\#sh ip nat translation Pro Inside global Inside local---[172.16.1.1](172.16.1.1) [192.168.1.10](192.168.1.10) |  | Outside local | Outside global |  |  |\n| --- | --- | --- | --- | --- | --- |\n| Configuration Example: Dynamic NAT |  |  |  |  |  |\n| Router R1:\u003Cbr>interface fastethernet0/1\u003Cbr>ip address [192.168.1.1](192.168.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat inside!\u003Cbr>interface fastethernet0/0\u003Cbr>ip address [10.1.1.1](10.1.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat outside!\u003Cbr>ip access-list standard INSIDE-HOSTS\u003Cbr>permit [192.168.1.0](192.168.1.0) [0.0.0.255](0.0.0.255)!\u003Cbr>ip nat pool NAT-POOL [155.1.1.1](155.1.1.1) [155.1.1.254](155.1.1.254) netmask [255.255.255.0](255.255.255.0)!\u003Cbr>ip nat inside source list INSIDE-HOSTS pool NAT-POOL |  |  |  |  |  |\n| R1\\#sh ip nat translation Pro Inside global Inside local---[155.1.1.1](155.1.1.1) [192.168.1.1](192.168.1.1)[ ](192.168.1.1)---[155.1.1.2](155.1.1.2) [192.168.1.2](192.168.1.2)[ ](192.168.1.2)---[155.1.1.3](155.1.1.3) [192.168.1.3](192.168.1.3) |  | Outside local Outside global\u003Cbr>--- ---\u003Cbr>--- ---\u003Cbr>--- --- |  |  |  |\n| Configuration Example: Port Address Translation |  |  |  |  |  |\n| Router R1:\u003Cbr>interface fastethernet0/1\u003Cbr>ip address [192.168.1.1](192.168.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat inside\u003Cbr>!\u003Cbr>interface fastethernet0/0 ip address [10.1.1.1](10.1.1.1) [255.255.255.0](255.255.255.0)\u003Cbr>ip nat outside!\u003Cbr>ip access-list standard INSIDE-HOSTS\u003Cbr>permit [192.168.1.0](192.168.1.0) [0.0.0.255](0.0.0.255)!\u003Cbr>ip nat inside source ","cbCaiocKGj0hs1H2","https://ap.wps.com/l/cbCaiocKGj0hs1H2","pdf",249143,"English","# Key Characteristics\n# NAT Address Types\n# Types of NAT\n## Static NAT\n## Dynamic NAT\n## Port Address Translation (PAT)\n# Configuration Examples\n## Static NAT\n## Dynamic NAT\n## Port Address Translation\n# Troubleshooting Command","[{\"question\":\"What problem does NAT address in CCNA networking?\",\"answer\":\"NAT provides a short-term way to overcome the address requirement when connecting to the internet, allowing private addressing to reach public networks.\"},{\"question\":\"How do Inside Local and Inside Global addresses differ?\",\"answer\":\"Inside Local is the private IP assigned to a host on the inside network, typically from RFC 1918. Inside Global is the corresponding IP address as it appears on the outside network.\"},{\"question\":\"Which NAT types are covered, and what does PAT do?\",\"answer\":\"The cheat sheet covers Static NAT, Dynamic NAT, and Port Address Translation. PAT translates multiple local addresses to a single global address by using different ports.\"}]","CCNA: NAT CHEAT SHEET - Quick Reference | PDF",1791945937]