Hotspot through Windows Defender Firewall

Required Ports and Protocols

Inbound/Outbound Ports

• DHCP (Dynamic Host Configuration Protocol):
  • UDP 67, 68 (for device IP address assignment).
• DNS (Domain Name System):
  • UDP 53 and TCP 53 (for resolving domain names).
• Web Traffic:
  • TCP 80, 443 (for HTTP/HTTPS traffic).
• Multicast DNS (mDNS):
  • UDP 5355 (for name resolution in local networks).

ICMP (Internet Control Message Protocol)

• ICMPv4 and ICMPv6:
  • Protocol 1 (ICMPv4) and 58 (ICMPv6).
  • Types and Codes:
    • Echo Request (Type 8), Echo Reply (Type 0).
    • Router Solicitation and Advertisement for IPv6 (Types 133, 134).

Additional Ports

• NetBIOS (for local name resolution):
  • UDP 137, 138; TCP 139.
• WINS (Windows Internet Name Service):
  • TCP/UDP 445.
• Routing and Remote Access (RRAS):
  • UDP 1701, TCP 1723.