Advanced Networking with CISCO (CCNA) > Infrastructure Security

Number of ACL

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Specific services will be allowed or banned based on an extended access list. From 100 to 199, then from 2000 to 2699, an extended ACL is established. Remember rules cannot be deleted if they are numbered with an expanded Access-list.

ACLs are a set of permit and deny conditions, often known as rules, that provide security by preventing unauthorised users from accessing specified resources while allowing authorised users to do so. ACLs can prevent unauthorised access to network resources.

Only one ACL per interface, per protocol, and per direction is allowed, i.e., only one inbound and outbound ACL per interface is allowed.

Use the show access-lists privileged EXEC command to see the contents of current access lists. Use the show ip access-list EXEC command to see the contents of all current IP access lists.

The access list number for typical IP access lists can range from 1 to 99 in all software releases. From 1300 to 1999, standard IP access lists in Cisco IOS Software Release 12.0. 1 began adding additional numbers. The expanded range is the term used to describe these additional numbers.

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  1. Introduction to Networking
    19m 37s
  2. Basics of Networking Cables
    23m 40s
  3. Types of Topology Part -1
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  4. Types of Topology Part -2
    16m 11s
  5. TCP/IP Suite
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  6. OSI Model
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  7. Network Devices
    26m 23s
  8. Network Protocols
    34m 38s
  9. Next-Generation Firewalls
    28m 43s
  10. Assignment : Introduction To Networking
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  1. IP Address
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  2. IP Address Classes
    29m 41s
  3. IP Subnetting
    26m 59s
  4. Class C Subnetting
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  5. Configuration of IP Address
    30m 14s
  6. IPv6 Addressing Part -1
    17m 56s
  7. IPv6 Addressing Part -2
    16m 52s
  8. Assignment : IP Address
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  1. Introduction to Cisco IOS
    26m 45s
  2. Router Memory
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  3. Modes in a Router
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  4. Cisco IOS Password Configuration
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  5. Practical: Router Configuration
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  6. Practical: Commands of Routing
    19m 5s
  7. Assignment : Working With Cisco Devices
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  1. Routing Fundamentals
    23m 16s
  2. Static Routing
    28m 43s
  3. Default Routing
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  4. Dynamic Routing
    26m 55s
  5. Packet Forwarding
    4m 51s
  6. Assignment : Basic Routing Technologies
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  1. Advanced Routing Technologies
    20m 59s
  2. RIPv1 & RIPv2 Configuration
    26m 11s
  3. OSPF Routing
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  4. Configuring OSPFv2
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  5. Configuring OSPFv3
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  6. Hybrid Routing Protocol
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  7. EIGRP Routing and Configuration
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  8. Assignment : Advanced Routing Technologies
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  1. LAN Switching Technologies
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  2. Introduction to Ethernet
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  3. Switching Techniques
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  4. Basic Switch Configuration
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  5. Assignment : Basic LAN Switching Technologies
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  1. Introduction to VLAN
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  2. Switch Mode Port
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  3. VLAN Routing
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  4. Router-on-Stick Configuration
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  5. VLAN Trunking Protocol
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  6. Spanning Tree Protocol
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  7. Features of Ether channel
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  1. Infrastructure Services
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  3. Port Address Translation
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  5. DHCP Configuration
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  6. Syslog
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  7. SNMP Protocol
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  2. WAN Device
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  3. VPN Configuration
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  4. Point-to-Point Protocol (PPP) Configuration
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  5. Assignment : WAN Technologies
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  1. Switching Password
    30m 44s
  2. SSH Configure
    28m 33s
  3. Port Security
    32m 11s
  4. Access Control List (ACL)
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  5. Configure Switch Port Security
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  6. Number of ACL
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  7. Name of ACL
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  8. Assignment : Infrastructure Security
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  1. Infrastructure Management
    9m 50s
  2. SNMP Versions
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  3. Assignment : Infrastructure Management
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  1. Basic Troubleshooting
    9m 27s
  2. Wiring Problems Troubleshooting
    27m 5s
  3. Troubleshooting IP Addressing and Host
    30m 15s
  4. Assignment : Basic Troubleshooting
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  1. Advanced Troubleshooting
    13m 10s
  2. Routing Failures & Troubleshooting
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  1. Automation & Programmability
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  3. Assignment : Automation and Programmability
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  1. Course Summary
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  1. Cisco Network Interview Questions Part 1
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