Internet Connection Firewall

• Internet Connection Firewall (ICF) protects

  • Single computer
  • Network

• Packet filtering

  • Outbound traffic recorded in flow table
  • Inbound packets permitted only if match entry in flow table

• Port mapping

  • Some applications require unsolicited inbound traffic
    • Web servers
    • On-line games
    • LDAP
  • Users may explicitly open a port to unsolicited packets

Previous slide

Next slide

Back to first slide

View graphic version