Linux-router is a bash script. All it takes is one command to set up Linux as a router. Ability to provide Internet access and create WiFi hotspots. Can also be used to set up networking for virtual machines or containers.

it wraps iptables , dnsmasqwait. Both setting and undoing require only one command or one simple operation.

characteristic:

• Create a NATed subnet
• provide internet
• DHCP server (and RA)
  • Specifies the DNS assigned by the DHCP server to the client
• domain name server
  • Specify upstream DNS (a common DNS proxy)
• IPv6 (behind a NATed LAN, like IPv4)
• Create a WiFi hotspot:
  • channel selection
  • Select Encryption: WPA2/WPA, WPA2, WPA, No Encryption
  • Create the AP on the same interface as the internet (usually requires the same channel)
• Transparent proxy (redsocks)
• Transparent DNS proxy (hijacking port 53 packets)
• Detect NetworkManager and make sure it doesn’t interfere (handle interface (un)managed state)
• Many instances can be run to create many different networks. It has instance management function.