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LINX Accredited Internet Technician 1

A 5 day
training course

LINX 1 training course description

An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. The course focuses on all parts of TCP/IP including layers 4 to 7 on end stations as well as layer 3 on routers. The TCP/IP protocols are also studied to enable delegates to be able to troubleshoot TCP/IP using Wireshark. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment.
A multiple choice exam, leading to the LAIT I certification, is included at the end of the course. The exam consists of 40 questions and lasts 1.5 hours.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Use ping, traceroute and other tools to diagnose faults on a network.
  • Configure IP on PCs and routers.
  • Plan IP addresses and subnets.
  • Analyse IP and TCP packets using an analyser.
  • Troubleshoot TCP/IP.

LINX 1 training course details

Who will benefit:
Network engineers.
5 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Overall ratings for this course:

Course review

"Very useful for understanding networks and network design."
C. M. Siemens
"Very good instructor, clear outlines and objectives and a lot of hands on."
R. P. Talking Nodes

LINX 1 training course contents

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.

telnet and ftp
Configuration options, console port, putty, telnet.
Hands on: Configuring switches, telnet.

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.

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.
Hands on: Using GNS3.

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.

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.

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.

Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP.
Hands on: Servers, TFTP, VoIP packet analysis.

Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration.
Hands on: Troubleshooting DNS.

The Internet
Autonomous systems, Peering, transit, looking glasses.
Hands on: Internet routing tables.

Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols. Hands on: Firewalls, SSH

Methods, tools.
Hands on: Fixing the network


Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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