Roy's CCNA Notes
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Days
Day 06 - Ethernet LAN Switching (2)
Day 11 - Routing Fundamentals (1)
Day 11 - Routing Fundamentals (2)
Day 12 - Life of a Packet
Day 13 - Subnetting (1)
Day 14 - Subnetting (2)
Day 15 - Subnetting (3)
Day 16 - VLANs (1)
Day 17 - VLANs (2)
Day 18 - VLANs (3)
Day 19 - DTP & VTP
Day 20 - Spanning Tree Protocol (STP) (1)
Day 21 - Spanning Tree Protocol (STP) (2)
Day 22 - Rapid Spanning Tree Protocol (3)
Day 23 - EtherChannel
Day 24 - Dynamic Routing
Day 25 - RIP & EIGRP
Day 26 - OSPF (1)
Day 27 - OSPF (2)
Day 28 - OSPF (3)
Day 29 - FHRP
Day 30 - TCP & UDP
Day 31 - IPv6 (1)
Day 32 - IPv6 (2)
Day 33 - IPv6 (3)
Day 34 - Standard ACLs
Day 35 - Extended ACLs
Day 36 - CDP & LLDP
Day 37 - NTP
Day 38 - DNS
Day 39 - DHCP
Day 40 - SNMP
Day 41 - Syslog
Day 42 - SSH
Day 43 - FTP & TFTP
Day 44 - NAT (1)
Day 45 - NAT (2)
Day 46 - QoS (1)
Day 47 - QoS (2)
Day 48 - Security Fundamentals
Day 49 - Port Security
Day 50 - DHCP Snooping
Day 51 - Dynamic ARP Inspection (DAI)
Day 52 - LAN Architectures
Day 53 - WAN Architectures
Day 54 (1) - Virtualization & Cloud
Day 54 (2) - Containers
Day 54 (3) - VRF
Day 55 - Wireless Fundamentals
Day 56 - Wireless Architectures
Day 57 - Wireless Security
Day 58 - Wireless Configuration
Day 59 - Intro to Network Automation
Day 60 - JSON, XML, & YAML
Day 61 - REST API
Day 62 - Software-Defined Networking
Day 63 - Ansible, Puppet, & Chef
General
Misc
Cisco IOS Commands
Common MAC Addresses
Ethernet 'Type' Field Codes
Ethernet Frame General Information
IP Configuration Commands
IP Protocol Numbers
Multicast Addresses
Port Numbers
Quartz Fix - Cisco IOS Commands
Timer Intervals
Types of Interface Errors
Wildcard Mask Usages
Subnetting
Cheat Sheet & N Table Image
Important Group Size Calculation
PracNet Subnet guide - 2nd and 1st octets
PracNet Subnet guide - 3rd octet
PracNet Subnet guide - FLSM
PracNet Subnet guide - Speed tips
PracNet Subnet guide - Things to watch out for
PracNet Subnet guide - VLSM
Subnetting 101
Explorer
Days
Day 06 - Ethernet LAN Switching (2)
Day 11 - Routing Fundamentals (1)
Day 11 - Routing Fundamentals (2)
Day 12 - Life of a Packet
Day 13 - Subnetting (1)
Day 14 - Subnetting (2)
Day 15 - Subnetting (3)
Day 16 - VLANs (1)
Day 17 - VLANs (2)
Day 18 - VLANs (3)
Day 19 - DTP & VTP
Day 20 - Spanning Tree Protocol (STP) (1)
Day 21 - Spanning Tree Protocol (STP) (2)
Day 22 - Rapid Spanning Tree Protocol (3)
Day 23 - EtherChannel
Day 24 - Dynamic Routing
Day 25 - RIP & EIGRP
Day 26 - OSPF (1)
Day 27 - OSPF (2)
Day 28 - OSPF (3)
Day 29 - FHRP
Day 30 - TCP & UDP
Day 31 - IPv6 (1)
Day 32 - IPv6 (2)
Day 33 - IPv6 (3)
Day 34 - Standard ACLs
Day 35 - Extended ACLs
Day 36 - CDP & LLDP
Day 37 - NTP
Day 38 - DNS
Day 39 - DHCP
Day 40 - SNMP
Day 41 - Syslog
Day 42 - SSH
Day 43 - FTP & TFTP
Day 44 - NAT (1)
Day 45 - NAT (2)
Day 46 - QoS (1)
Day 47 - QoS (2)
Day 48 - Security Fundamentals
Day 49 - Port Security
Day 50 - DHCP Snooping
Day 51 - Dynamic ARP Inspection (DAI)
Day 52 - LAN Architectures
Day 53 - WAN Architectures
Day 54 (1) - Virtualization & Cloud
Day 54 (2) - Containers
Day 54 (3) - VRF
Day 55 - Wireless Fundamentals
Day 56 - Wireless Architectures
Day 57 - Wireless Security
Day 58 - Wireless Configuration
Day 59 - Intro to Network Automation
Day 60 - JSON, XML, & YAML
Day 61 - REST API
Day 62 - Software-Defined Networking
Day 63 - Ansible, Puppet, & Chef
General
Misc
Cisco IOS Commands
Common MAC Addresses
Ethernet 'Type' Field Codes
Ethernet Frame General Information
IP Configuration Commands
IP Protocol Numbers
Multicast Addresses
Port Numbers
Quartz Fix - Cisco IOS Commands
Timer Intervals
Types of Interface Errors
Wildcard Mask Usages
Subnetting
Cheat Sheet & N Table Image
Important Group Size Calculation
PracNet Subnet guide - 2nd and 1st octets
PracNet Subnet guide - 3rd octet
PracNet Subnet guide - FLSM
PracNet Subnet guide - Speed tips
PracNet Subnet guide - Things to watch out for
PracNet Subnet guide - VLSM
Subnetting 101
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Misc
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IP Protocol Numbers
IP Protocol Numbers
Mar 08, 2025
1 min read
ccna/general/misc
IP Protocol Numbers
Protocol
Number
ICMP
1
TCP
6
UDP
17
EIGRP
88
OSPF
89
Graph View
Backlinks
Day 35 - Extended ACLs