Creating and Maintaining Home Networks
Internet Service Provider (ISP)
http://edu-observatory.org/olli/Networks/ISP.html
INTERNET SERVICE PROVIDER (ISP) Wikipedia: Internet Service Provider (ISP) https://en.wikipedia.org/wiki/Internet_service_provider An Internet service provider (ISP) is an organisation that provides services for accessing, using, or participating in the Internet. Internet service providers can be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned. Internet services typically provided by ISPs can include Internet access, Internet transit, domain name registration, web hosting, Usenet service, and colocation. An ISP typically serves as a connection or gateway that provides a user, access to everything available on the Internet. What's My Apparent IP Address and ISP? https://bgp.he.net https://browserleaks.com/ip https://test-ipv6.com Test Bandwidth https://speedtest.net https://speedtest.tds.net https://fast.com (IPv6) (VPN) Download Network Tools https://apps.apple.com/us/app/beenettools/id1160138136 https://apps.apple.com/us/app/he-net-network-tools/id858241710 https://play.google.com/store/apps/details?id=net.he.networktools Test Firewall https://www.grc.com/x/ne.dll?bh0bkyd2 http://www.ipv6scanner.com/cgi-bin/main.py IPv6 Address Types https://www.ripe.net/participate/member-support/lir-basics/ipv6_reference_card.pdf https://www.iana.org/assignments/ipv6-unicast-address-assignments/ipv6-unicast-address-assignments.xhtml IPv4 Address Types https://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml
Wikipedia: Carrier-grade NAT (CGNAT) https://en.wikipedia.org/wiki/Carrier-grade_NAT#Disadvantages Many cell phone carriers (AT&T, Verizon, T-Mobile, etc.) and Some ISPs (Starlink, Metronet) use Carrier-grade NAT as there are not enough IPv4 addresses for all of their customers. From the command line: traceroute -aI -m 2 `curl --connect-timeout 1 -s ipinfo.io/ip` mtr --aslookup --show-ips `curl --connect-timeout 1 -s ipinfo.io/ip` If more than one hop, your IP address is behind a NAT, and/or your first hop is in one of these address ranges: 10.x.x.x (10.0.0.0/8) 16,777,216 172.16.x.x ==> 172.32.x.x (172.16.0.0/12) 1,048,576 192.168.x.x (192.168.0.0/16) 65,536 then you are NAT'd. These are private IP addresses, as defined in RFC 1918. https://www.ripe.net/participate/member-support/lir-basics/ipv6_reference_card.pdf BeeNetTools (App for iOS, iPadOS) Ping, Traceroute, & MTR https://apps.apple.com/us/app/beenettools/id1160138136 open -a "AirPort Utility.app" to demo router's WAN IP address LAN IP address
MOBILE APPS CenturyLink Apps https://apps.apple.com/us/app/my-centurylink/id1015059570 https://play.google.com/store/apps/details?id=com.centurylink.ctl_droid_wrap&hl=en_US&gl=US HughesNet Apps https://apps.apple.com/us/app/hughesnet-mobile/id1097579916 https://play.google.com/store/apps/details?id=com.hughesnet.sa&hl=en_US&gl=US Metronet Apps https://apps.apple.com/us/app/metronet-go/id990753350 https://play.google.com/store/apps/details?id=com.metaswitch.cp.Metronet&hl=en_US&gl=US Mediacom Apps https://apps.apple.com/us/app/mediacomconnect/id527680234 https://play.google.com/store/apps/details?id=com.speechcycle.smartcare.android.mediacom&hl=en&gl=US Starlink Apps https://apps.apple.com/us/app/starlink/id1537177988 https://play.google.com/store/apps/details?id=com.starlink.mobile&hl=en_US&gl=US sam.wormley@icloud.com