https://www.digitalocean.com/community/tutorials/an-introduction-to-networking-terminology-interfaces-and-protocols
Service Provider vs. Enterprise Security – Is There a Difference? https://forums.juniper.net/t5/Security/Service-Provider-vs-Enterprise-Security-Is-There-a-Difference/ba-p/215927
MPLS
https://www.networkworld.com/article/2297171/network-security-mpls-explained.html
Cisco Chapter: Understanding and Configuring VLANs
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/25ew/configuration/guide/conf/vlans.html
https://he.net/ip_transit.html
https://www.nirsoft.net/utils/country_traceroute.html
https://sourceforge.net/projects/winmtr/
https://www.bentasker.co.uk/blog/general/280-on-networks-pl500-powerline-adapters
https://study-ccna.com/collision-broadcast-domain/
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/layer-2-understanding.html
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/layer2/configuration/guide/Cisco_Nexus_7000_Series_NX-OS_Layer_2_Switching_Configuration_Guide_Release_5-x_chapter3.html
| Layer | Protocol data unit | |||
| L7 | ||||
| L6 | ||||
| L5 | ||||
| L4 | Transport | Segment | Port number? | Applications? |
| L3 | Network/Internet | Packet | IP address | Routers, Layer 3 switches |
| L2 | Data Link | Frame | MAC address | Switches, Bridges, Wifi access points |
| L1 | Physical | bits | Hubs, 2.4Ghz radio? | |
Bogon packets
https://ctovision.com/help-bogons-are-in-my-networks/
https://subspacepowered.medium.com/pedal-to-the-metal-radically-improve-matchmaking-through-expanded-gaming-access-46042d82bddb
203.0.113.X addresses
https://www.lammle.com/post/ciscos-use-of-the-ip-203-0-113-1-address-in-cisco-ftd-4100-9300-devices/
https://hackaday.com/2022/12/08/power-over-ethernet-explained/
IPsec site-to-site VPN - HAGLE
https://ciscoshizzle.blogspot.com/2018/03/ipsec-site-to-site-vpn-101.html
Check Point R80.30 site to site VPN, IPsec & IKE
https://sc1.checkpoint.com/documents/R80.30/WebAdminGuides/EN/CP_R80.30_SitetoSiteVPN_AdminGuide/13847.htm
Check Point Hide NAT https://support.checkpoint.com/results/sk/sk27396
Configuring TCP MSS Adjustment https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3650/software/release/16-9/configuration_guide/ip/b_169_ip_3650_cg/configuring_tcp_mss_adjustment.pdf
https://www.cisco.com/c/en/us/support/docs/ip/transmission-control-protocol-tcp/200932-Ethernet-MTU-and-TCP-MSS-Adjustment-Conc.html
https://kb.netgear.com/19863/Ping-Test-to-determine-Optimal-MTU-Size-on-Router
https://www.draytek.com/support/knowledge-base/4909
https://www.linksys.com/support-article?articleNum=134914
ISM, Industrial, Scientific and Medical bands
Wired.com Why Everything Wireless Is 2.4 GHz
https://www.wired.com/2010/09/wireless-explainer/
Electronics-Notes.com - Wi-Fi Channels, Frequencies, Bands & Bandwidths
https://www.electronics-notes.com/articles/connectivity/wifi-ieee-802-11/channels-frequencies-bands-bandwidth.php
Netgear wifi analytics Android Play Store https://play.google.com/store/apps/details?id=com.netgear.WiFiAnalytics
BT Router problems with wifi https://www.bbc.co.uk/news/technology-56949262.amp
https://www-tomsguide-com.cdn.ampproject.org/v/s/www.tomsguide.com/amp/news/home-gateway-geolocation-bh21?amp_gsa=1&_js_v=a6&usqp=mq331AQIKAGwASCAAgM%3D#amp_tf=From%20%251%24s&aoh=16286105254040&csi=0&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Fwww.tomsguide.com%2Fnews%2Fhome-gateway-geolocation-bh21
https://amp-theguardian-com.cdn.ampproject.org/v/s/amp.theguardian.com/technology/2021/oct/27/wifi-advice-techscape?amp_gsa=1&_js_v=a6&usqp=mq331AQIKAGwASCAAgM%3D#amp_tf=From%20%251%24s&aoh=16355282727275&csi=0&referrer=https%3A%2F%2Fwww.google.com&share=https%3A%2F%2Fwww.theguardian.com%2Ftechnology%2F2021%2Foct%2F27%2Fwifi-advice-techscape
Guardian TechScape: could a router revolution solve all your wifi woes?
https://www.huffingtonpost.co.uk/entry/wifi-what-does-it-stand-for-acronym-meaning_uk_6603e7f7e4b06dedef7e9d96
Routers
Asus Dummy UI - http://demoui.asus.com/
TP-Link Emulators - https://www.tp-link.com/uk/support/emulator/
Draytek Live Demo - https://www.draytek.com/products/live-demo/
Report email abuse https://bt.custhelp.com/app/contact_email/c/7644
find ISPs from IP address http://ripe.net/whois
https://ips.osnova.news/ip/