Networking

General

• Router is usually at XXX.XXX.0.1 -> On TP-Link, that's 192.168.0.1
• Forward incoming requests on a port to internal IPs and ports
• Connected wired devices are at IP & MAC Binding > ARP List
• Connected wireless devices are at DHCP > Clients List
• Your /etc/hosts file will map a hostname to an IP address
• Look up all devices on your network with nmap -sP "192.168.0.*"
• Look up information about your network adapter with ifconfig

Dynamic IP addresses

• Your router's address changes, but you can setup a service that gives you a static domain name that redirects to a variable IP address
• Configure your router to update the service, or install a client on an always-connected computer in your network that updates it

Assigning static IP addresses

• Under DHCP > Address Reservation, put the MAC address of the hardware and the IP address you'd like to reserve

  • Address must be outside of the range of addresses assigned by DHCP

• Edit /etc/dhcpcd.conf

• At the bottom of the file, add (for wired/wireless connections):

  interface eth0
  
  static ip_address=192.168.0.10/24
  static routers=192.168.0.1
  static domain_name_servers=192.168.0.1
  

  interface wlan0
  
  static ip_address=192.168.0.11/24
  static routers=192.168.0.1
  static domain_name_servers=192.168.0.1