Weekly DeliverableAddress plan + first
workload — A non-overlapping CIDR/ASN plan for on-prem + 3 clouds, and one reachable
VM per cloud
S01Mon
Networking Refresher for the Cloud
OSI & TCP/IP recap · encapsulation · MAC vs IP · ARP ·
TCP handshake, ports, MSS/MTU · packet walk end to end
Packet walk on a whiteboard;
tcpdump/ping/traceroute on a local VM
S02Tue
IP Addressing & CIDR Design
RFC1918 · CIDR & VLSM maths · subnet sizing ·
non-overlapping enterprise address plan · reserved IPs per cloud
VPC CIDR, 5 reserved
IPs/subnet VNet address space,
5 reserved IPs VPC subnet ranges,
secondary ranges
Design a non-overlapping CIDR
plan for 3 clouds + on-prem
S03Wed
Routing, NAT & DNS Fundamentals
Routing table logic · longest-prefix match · static vs
dynamic · default route · NAT vs PAT · DNS resolution flow & record types
Route table
concepts System routes &
UDR concepts VPC routes &
priority
Linux routing + iptables NAT
lab; dig/nslookup resolution trace
S04Thu
Cloud Foundations & Account Hierarchy
Service & deployment models · Region / AZ / Zone ·
global vs regional constructs · tenancy hierarchy · shared responsibility model
Org, OU, Account,
Region, AZ Tenant, Mgmt Group,
Subscription, RG Org, Folder,
Project, Region, Zone
Open all 3 accounts; map an
on-prem topology to each cloud
S05Fri
Console, CLI & First Workload
Console navigation · CLI/SDK auth models · IAM basics for
network engineers · launching a VM and proving reachability
AWS CLI, IAM roles,
EC2 Azure CLI, RBAC,
VM gcloud, IAM, Compute
Engine
Launch one VM per cloud, SSH
in, verify egress and DNS