Videos 1–10 39m 23s 0/10
1
🔟 Every Subnet Fits Inside a Bigger Network
7:04
2026-10-05
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2
9️⃣ Every Network Starts Where the Last One Ended
6:02
2026-09-28
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3
8️⃣ /0 and /32 and why Subnets only Double and Halve in size
6:11
2026-09-21
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4
7️⃣ Every IP Between Network ID and Broadcast Is Usable
3:32
2026-09-14
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5
6️⃣ Network ID means NOTHING without a Mask
3:42
2026-09-07
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6
5️⃣ Network ID and Broadcast IP -- simply explained
3:59
2026-08-31
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7
4️⃣ What is a Network ID? Identifying groups of IP Addresses
1:29
2026-08-24
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8
3️⃣ Why IP Addresses Are Split Into Network Bits and Host Bits
1:54
2026-08-17
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9
2️⃣ Network Bits vs Host Bits -- determined by the Subnet Mask
2:06
2026-08-10
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10
1️⃣ CIDR, Subnet Mask, and Binary Subnet Mask Are the Exact Same Thing
3:24
2026-08-03
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Videos 11–20 53m 17s 0/10
11
Ask Me Anything - 280k Subs - reading RFCs, retaining information, book recommendations, infosec ...
8:39
2025-02-24
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12
Updates from Practical Networking
1:50
2024-11-26
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13
Elliptic Curve Cryptography in less than 5 minutes
4:44
2024-10-21
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14
Diffie-Hellman Key Exchange and Forward Secrecy
13:00
2024-10-14
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15
RSA Key Exchange and Forward Secrecy - Cryptography Essentials
4:18
2024-10-07
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16
You can't do security without THIS
4:10
2024-09-30
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17
DSA Signatures
2:12
2024-09-23
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18
RSA Signatures
3:41
2024-09-16
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19
Signatures - What and why are they?
5:15
2024-09-09
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20
RSA & Asymmetric Encryption - Cryptography Essentials
5:28
2024-09-02
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Videos 21–30 53m 53s 0/10
21
A better definition of Asymmetric Cryptography
5:07
2024-08-26
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22
PRFs explained: Transforming Secrets into Infinite Keys - Pseudo Random Functions
8:50
2024-08-19
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23
MAC / HMAC - Message Authentication Code / Hash Bashed Message Authentication Codes
6:52
2024-08-12
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24
Symmetric Encryption - AES ChaCha20 3DES RC4 DES - Cryptography Essentials
4:04
2024-08-05
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25
Symmetric Cryptography is a category
1:30
2024-07-29
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26
Understanding Secret Keys: A Simple Explanation
5:10
2024-07-22
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27
Hashing and Hashing Algorithms - md5 sha1 sha256 sha2 sha3 - Cryptography Essentials
6:03
2024-07-15
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28
Cryptography Essentials - Series Intro
1:35
2024-07-08
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29
OSI Model Layer 5, 6, and 7 -- Session, Presentation, & Application Layers -- what they actually do
13:42
2023-10-31
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30
How do Routers work? What is a Routing Table? #ccna #comptia #networking #networkdevices #infosec
1:00
2023-10-16
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Videos 31–40 15m 10s 0/10
31
What is a Router? #networking #networkdevices #ccna #comptia #informationsecurity #networkingtips
0:48
2023-10-09
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32
HTTP vs HTML: Unveiling Network Protocols using Telnet
7:19
2023-10-02
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33
What is a Switch? #networking #networkdevices #ccna #comptia #informationsecurity #networkingtips
0:45
2023-09-25
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34
What is a Network Bridge? Bridge vs Hub -- #network #networking #networkdevices #ccna #comptia #it
1:00
2023-09-18
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35
What is a Hub? #networking #networkdevices #ccna #comptia #informationsecurity #networkingtips
1:00
2023-09-11
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36
What is a Repeater? #network #networking #networkdevices #ccna #comptia
0:39
2023-09-06
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37
What are Subnets? #networking #cybersecurity
1:00
2023-08-10
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38
What is a Network? #newtorking #cybersecurity #network
0:54
2023-08-07
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39
What are IP Addresses? #networking #cybersecurity
0:54
2023-08-03
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40
What are Clients and Servers? #shorts #networking #cybersecurity
0:51
2023-07-31
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Videos 41–50 54m 19s 0/10
41
What are Hosts? #shorts #networking #cybersecurity
0:43
2023-07-28
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42
TLS 1.3 Handshake - many CHANGES from prior versions!
17:39
2023-06-15
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43
TLS 1.3 Cipher Suites - Here is what CHANGES!
17:02
2023-06-06
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44
TLS 1.3 - What Changes? What stays the same?
8:02
2023-05-31
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45
Ask Me Anything - 150k Subscribers - THANK YOU
8:38
2023-05-23
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46
how do you find the number of subnets from a mask?
0:50
2023-05-16
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47
Can a portion of a packet be dropped?
0:14
2023-05-16
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48
Why send an ACK with no data? #tcp
0:41
2023-05-16
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49
control z on Cisco Routers
0:15
2023-05-10
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50
May 9, 2023
0:15
2023-05-10
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Videos 51–60 3h 59m 0/10
51
UDP doesn't suck! It's the BEST L4 protocol for THESE types of applications...
11:52
2023-03-19
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52
TCP - 12 simple ideas to explain the Transmission Control Protocol
44:05
2023-02-06
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53
TCP vs UDP - Explaining Facts and Debunking Myths - TCP Masterclass
20:24
2023-01-30
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54
Can I rebuild an OSPF topology using ONLY the LSDB?
29:53
2022-11-16
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55
Keychains / Key Rotation / hmac-sha keys - OSPF Authentication - Practical OSPF
31:52
2022-10-10
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56
TLS Handshake - EVERYTHING that happens when you visit an HTTPS website
27:59
2022-09-06
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57
OSPF Area Types - Stub, NSSA, Totally Stub, Totally NSSA - Practical OSPF
20:10
2022-08-09
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58
OSPF Network Types - FINALLY, an explanation that makes sense - Practical OSPF
21:37
2022-08-01
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59
OSPF LSA - the BEST explanation of the Types of OSPF LSAs
14:20
2022-07-25
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60
Designated Router // Backup Designated Router // DR BDR Election // Practical OSPF // Lesson 6
16:48
2022-05-09
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Videos 61–70 2h 5m 0/10
61
HSTS - HTTP Strict Transport Security - Protect against SSL Stripping attack - Practical TLS
10:29
2022-05-02
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62
What are Cipher Suites? - Practical TLS
4:33
2022-04-11
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63
OSPF Configuration & Show Commands - Practical OSPF
30:52
2022-03-28
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64
OSPF Neighbor Adjacency States: DOWN ATTEMPT INIT 2-WAY EXSTART EXCHANGE LOADING FULL
14:18
2022-03-22
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65
OSPF Hello Packets :: Area Types (Stub/NSSA) :: BDR/DR :: Practical OSPF
18:34
2022-03-17
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66
OSPF Areas and OSPF Types of Routers - Practical OSPF - Lesson 2
8:24
2022-03-14
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67
OSPF Framework & OSPF Packets: LSDB, LSA, Hello, DBD, LSR, LSU, LSAck
12:35
2022-03-08
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68
Practical OSPF - Series Introduction
1:51
2022-03-07
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69
EGP / IGP :: Distance Vector / Link State :: Dynamic Routing Protocols :: OSPF EIGRP BGP RIP IS-IS
12:11
2022-02-28
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70
Looking inside an SSL Certificate with OpenSSL
11:38
2022-02-14
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Videos 71–80 1h 23m 0/10
71
OpenSSL - Encrypting and Decrypting Private Key Files
6:15
2022-02-09
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72
Twice NAT - Network Address Translation
5:27
2022-01-10
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73
Policy NAT - Network Address Translation
6:29
2022-01-03
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74
Dynamic NAT - Network Address Translation
11:51
2021-12-30
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75
Dynamic PAT - Network Address Translation
15:25
2021-12-21
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76
Static PAT - Network Address Translation
9:05
2021-12-16
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77
Static NAT - Network Address Translation
7:24
2021-12-13
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78
NAT vs PAT, Static vs Dynamic -- demystified! -- Network Address Translation
7:07
2021-12-08
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79
How does NAT conserve IP Address Space? (and why!) - Network Address Translation
7:41
2021-12-06
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80
TLS / SSL - The complete sequence - Practical TLS
6:15
2021-11-29
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Videos 81–90 1h 55m 0/10
81
Digital Signature Algorithm (DSA) - Cryptography - Practical TLS
5:47
2021-11-22
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82
Diffie-Hellman Key Exchange - the MAGIC that makes it possible - Cryptography - Practical TLS
6:56
2021-11-15
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83
RSA Algorithm - How does it work? - I'll PROVE it with an Example! -- Cryptography - Practical TLS
15:48
2021-11-08
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84
Public Key Infrastructure - What is a PKI? - Cryptography - Practical TLS
5:49
2021-11-02
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85
How SSL & TLS use Cryptographic tools to secure your data - Practical TLS
7:58
2021-10-25
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86
Public and Private Keys - Signatures & Key Exchanges - Cryptography - Practical TLS
12:33
2021-10-18
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87
Encryption - Symmetric Encryption vs Asymmetric Encryption - Cryptography - Practical TLS
13:58
2021-10-11
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88
Data Integrity - How Hashing is used to ensure data isn't modified - HMAC - Cryptography
7:24
2021-10-04
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89
Hashing, Hashing Algorithms, and Collisions - Cryptography - Practical TLS
11:42
2021-09-27
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90
How Data moves through the Internet - Networking Fundamentals
26:47
2021-09-13
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Videos 91–100 3h 21m 0/10
91
Network Protocols - ARP, FTP, SMTP, HTTP, SSL, TLS, HTTPS, DNS, DHCP - Networking Fundamentals - L6
12:27
2021-08-30
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92
Router Hierarchies and Route Summarization - Networking Fundamentals - Lesson 5 - Part 3
14:09
2021-08-23
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93
🎬 Packet Tracer challenge: Find the Imposter - Layer 2 - SOLUTION VIDEO
7:34
2021-08-16
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94
🎬 Packet Tracer challenge: Find the Imposter - Layer 2
11:05
2021-08-10
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95
🎬 Let's do Packet Tracer labs together - DHCP, VLANs, EtherChannel, Switching, Routing - PTL4
1:03:46
2021-07-23
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96
TLS / SSL Versions - Part 2 - Practical TLS
13:42
2021-07-19
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97
TLS / SSL Versions - Part 1 - Practical TLS
6:24
2021-07-19
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98
🎬 Let's do Packet Tracer labs together - VLANs, DHCP, DHCP Relay, Trunking, SVIs, L3 Switch
1:01:23
2021-07-16
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99
Anti-Replay and Non-Repudiation - Practical TLS
5:09
2021-07-12
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100
Key Players of SSL & TLS: Client, Server, Certificate Authority (CA) - Practical TLS
5:40
2021-07-12
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Videos 101–110 4h 4m 0/10
101
🎬 Let's do Packet Tracer labs together - Static NAT, Dynamic PAT, Routing, Troubleshooting - PTL2
58:18
2021-07-11
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102
🎬 Let's do Packet Tracer labs together - VLANs, Switching, Troubleshooting - PTL1
36:48
2021-07-09
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103
How do SSL & TLS protect your Data? - Confidentiality, Integrity, Authentication - Practical TLS
5:15
2021-07-06
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104
What is SSL & TLS ? What is HTTPS ? What is an SSL VPN? - Practical TLS
7:34
2021-07-02
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105
Everything Routers do - Part 2 - How Routers forward Packets - Networking Fundamentals - Lesson 5
14:41
2021-06-22
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106
Everything Routers do - Part 1 - Networking Fundamentals - Lesson 5
17:17
2021-06-17
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107
Supernetting, IP Aggregation, and IP Summarization -- Subnetting Mastery
30:39
2021-05-25
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108
🔴 VLSM Mastery - VLSM Problems using only scratch paper - Live Stream Replay
51:25
2021-05-07
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109
Everything Switches do - Part 2 - Networking Fundamentals - Lesson 4
10:41
2021-02-09
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110
Everything Switches do - Part 1 - Networking Fundamentals - Lesson 4
11:38
2021-01-28
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Videos 111–120 1h 57m 0/10
111
Everything Hosts do to speak on the Internet - Part 2 - Networking Fundamentals - Lesson 3
9:52
2021-01-14
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112
Everything Hosts do to speak on the Internet - Part 1 - Networking Fundamentals - Lesson 3
12:10
2021-01-07
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113
OSI Model: A Practical Perspective - Part 2 - Networking Fundamentals - Lesson 2
14:09
2020-12-30
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114
OSI Model: A Practical Perspective - Networking Fundamentals - Lesson 2a
13:25
2020-12-24
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115
Hub, Bridge, Switch, Router - Network Devices - Networking Fundamentals - Lesson 1b
15:26
2020-12-16
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116
Network Devices - Hosts, IP Addresses, Networks - Networking Fundamentals - Lesson 1a
11:32
2020-12-11
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117
Local Broadcast and Directed Broadcasts - Description and Demonstration
7:42
2020-09-02
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118
Local Broadcast and Directed Broadcasts - Demo and Packet Captures
19:00
2020-09-02
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119
ACL Placement: Closer to the Source or Destination? -- Access Control Lists (ACLs) -- Part 8 of 8
10:12
2020-08-25
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120
Applying ACLs to Interfaces (IPv4 and IPv6) -- Access Control Lists (ACLs) -- Part 7 of 8
3:43
2020-08-18
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Videos 121–130 1h 59m 0/10
121
IPv6 ACLs - Syntax and Demonstration -- Access Control Lists (ACLs) -- Part 6 of 8
11:34
2020-08-11
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122
Named ACL Configuration Demonstration -- Access Control Lists (ACLs) -- Part 5 of 8
13:28
2020-08-04
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123
Named ACL Syntax -- Access Control Lists (ACLs) -- Part 4 of 8
5:00
2020-07-28
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124
Numbered ACL Configuration Demonstration -- Access Control Lists (ACLs) -- Part 3 of 8
14:24
2020-07-21
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125
Numbered ACL Syntax -- Access Control Lists (ACLs) -- Part 2 of 8
8:49
2020-07-20
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126
What Are Access Lists? -- Access Control Lists (ACLs) -- Part 1 of 8
8:23
2020-07-13
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127
Discontiguous Wildcard Masks
9:46
2020-06-21
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128
Wildcard Masks -- What are they? How do you convert them? What are they used for?
14:48
2020-06-18
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129
Binary - The SIMPLEST explanation of Counting and Converting Binary numbers
22:15
2020-06-04
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130
Static NAT -- Configuration and Verification -- NAT on Cisco IOS Routers (FREE Course Preview)
10:49
2020-04-27
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Videos 131–140 1h 28m 0/10
131
Inside Local, Inside Global, Outside Local, Outside Global -- NAT on Cisco IOS Routers
6:45
2020-04-27
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132
Route Precedence -- Answer to Bonus Questions
3:08
2020-04-09
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133
Route Precedence -- How does a Router choose a path when multiple paths exist?
15:01
2020-03-31
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134
What are VLANs? -- the simplest explanation
11:29
2019-11-10
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135
Variable-Length Subnet Mask (VLSM) - Subnetting Mastery - FLSM and VLSM Appendix Part 2 of 2
11:49
2019-08-29
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136
Fixed-Length Subnet Mask (FLSM) - Subnetting Mastery - FLSM and VLSM Appendix Part 1 of 2
13:29
2019-07-29
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137
Native VLAN - the DEFINITIVE illustration
5:39
2018-09-07
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138
Subnetting in the /1 - /16 range - Subnetting Mastery - Part 7 of 7
5:19
2018-08-02
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139
Subnetting in the /17 - /24 range - Subnetting Mastery - Part 6 of 7
6:32
2018-07-30
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140
Time-Saving Tricks for Subnetting - Subnetting Mastery - Part 5 of 7
8:32
2018-05-25
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Videos 141–146 45m 26s 0/6
141
Practice Examples - Subnetting Mastery - Part 4 of 7
9:55
2018-05-25
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142
How to solve ANY Subnetting Problems in 60 seconds or less - Subnetting Mastery - Part 3 of 7
6:10
2018-05-25
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143
Drawing the Cheat Sheet - Subnetting Mastery - Part 2 of 7
1:59
2018-05-25
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144
What is Subnetting? - Subnetting Mastery - Part 1 of 7
8:37
2018-05-22
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145
Address Resolution Protocol (ARP) in less than 5 minutes
4:06
2017-09-08
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146
Packet Traveling - How Packets Move Through a Network
14:39
2016-03-27
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