Network Fundamentals

IP, ports, TCP/UDP, NAT, VLAN, routing and interface terms.

• What is an IP address; where are IP addresses defined in TR7?GEN-01-001
• What is the difference between IPv4 and IPv6?GEN-01-002
• What is the difference between a private IP and a public IP?GEN-01-003
• What is a subnet; why does TR7 require the same subnet?GEN-01-004
• What is CIDR notation (e.g. 10.0.0.0/24)?GEN-01-005
• What is a port; where are ports set in TR7?GEN-01-006
• What is TCP; where is it used in TR7?GEN-01-007
• What is UDP; how does it differ from TCP?GEN-01-008
• What are ICMP and ping; where are they used in TR7?GEN-01-009
• What do the L2, L3, L4 and L7 layers mean; why do they appear so often on TR7 screens?GEN-01-010
• What is NAT; which types exist in TR7?GEN-01-011
• What is a MAC address; where does it appear in TR7?GEN-01-012
• What is a Default Gateway?GEN-01-013
• What is a static route?GEN-01-014
• What is a VLAN; what is a VLAN interface for in TR7?GEN-01-015
• What is an interface; what is the difference between a physical (ETH) interface and a virtual interface?GEN-01-016
• What is the difference between the Up, No Link and Down states of an interface?GEN-01-017
• What is the difference between bandwidth and packets/s?GEN-01-018
• What do RX and TX mean?GEN-01-019
• What do TCP connection states (such as ESTABLISHED and TIME_WAIT) mean?GEN-01-020
• What is DNAT?GEN-01-021
• What is ARP; how does it relate to VIP failover and the Spoofing setting in TR7?GEN-01-022
• What is an IP conflict; how does TR7 check for it?GEN-01-023
• What is the difference between static routing and dynamic routing?GEN-01-024
• What is the difference between unicast, multicast and broadcast?GEN-01-025
• What is MTU; when should I change it in TR7?GEN-01-026
• What is the difference between Bond and LACP?GEN-01-027
• What is a bridge interface; why is STP important?GEN-01-028
• What is the difference between interface errors and drops?GEN-01-029
• What is VXLAN; how does it differ from VLAN?GEN-01-030
• In what order do I configure networking when connecting TR7 to a new network (route table, interface, IP, route, firewall)?GEN-01-031