What is TCP/IP?
TCP and IP are protocols, 7 layer model, hardware/software layers, network layers, internetworking, protocols, What is IP? What is TCP? The internet, The IAB, RFCs.
Ping and Wireshark
Host configuration, IP addresses, subnet masks, default gateways, ping.
Hands on: Base configuration. Testing with ping. Analysing packets with Wireshark
Switches and Wireshark
Switches versus hubs, layer 2 forwarding table, flooding, broadcasts.
Hands on: Building a switched based network.
Configuring network devices
Configuration options, console port, putty, telnet.
Hands on: Configuring switches, telnet.
IP
IP packet format, protocol field, TTL, DiffServ, fragments, ICMP.
Hands on: IP packet analysis.
IP addressing
32 bits, dotted decimal, rules, networks, role of subnet masks, simple subnetting, prefix notation. Broadcasts, special use addresses.
Hands on: Planning and implementing addressing.
IP and the lower layers
ARP, PPP, other media.
Hands on: ARP.
Routing
What are routers? What routers do, default gateways, routing and addressing, routing tables, ways to update routing tables.
Hands on: Building a simple routed network, traceroute.
Routing protocols
IGPs and EGPs, RIP, RIPv2, Why not to use RIP, OSPF, OSPF metrics, convergence, distance vector protocols, link state protocols.
Hands on: RIP, OSPF analysing routing tables.
Network simulators.
Network simulators.EVE-NG, GNS3, CML.
Hands on: Using EVE-NG.
Subnetting
Subnetting to the bit level, ranges, how prefixes are used.
Hands on: Subnetting.
VLANS and IP addressing
What are VLANs, tagging, 802.1Q, Inter VLAN routing.
Hands on: Inter VLAN routing.
TCP and UDP
Layer 4, port numbers, client ports, broadcasts multicasts and layer 4, UDP header, TCP header, connections, ACK, sliding windows, options, connection states. Sockets.
Hands on: Analysing TCP packets.
IPv4 address configuration
Private addresses, NAT, NAPT, dynamic addressing, DHCP, link local addresses.
Hands on: DHCP, NAT.
IPv6
What is IPv6, 128 bit addresses, address formats, IPv6 address allocation, header format, migration, dual stack, tunnelling, NAT64, DNS64.
Hands on: IPv6 setup troubleshooting.
IPv6 address configuration
Static addressing, EUI-64 addresses, IPv6 address order, SLAAC, DHCPv6.
Hands on: SLAAC.
Applications
Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP.
Hands on: Servers, TFTP, VoIP packet analysis.
DNS
Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration.
Hands on: Troubleshooting DNS.
Security
Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols.
Hands on: Firewalls, SSH
Troubleshooting
Methods, tools, Using the 7 layer model. Troubleshooting toolkits.
Hands on: Fixing the network
