Advanced Networking with CISCO (CCNA) > Basic Troubleshooting

Troubleshooting IP Addressing and Host

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To get rid of your current IP address and request a new one, type "ipconfig /release" followed by "ipconfig /renew." In certain circumstances, this will solve the issue. If you still can't acquire a valid IP from your router, try using an ethernet connection to connect your computer directly to the modem.

IP addressing problems:

  • Incorrect default gateway address
  • Incorrect address mask
  • Incompatible IP address on network interface card (NIC) and network
  • Invalid IP address on NIC
  • Some host problems include:
  • Poor customer service
  • Slow servers and websites
  • Email spamming and phishing + Viruses and malware

Hostname troubleshooting is the process of identifying the causes of one or more operational difficulties with a host. When you are troubleshooting hosts, it is important to know what tools are available to you. This will help you to identify the problem quickly and accurately. The first thing you should do is try to ping the IP address of the computer. If it doesn't work, it's likely that the IP address is not configured properly.

IP addresses are used to identify networks and hosts. A 32-bit number is an IP address. On a TCP/IP network, it uniquely identifies a host (computer or other device, such as a printer or router). 192.168.123.132 is an example of a dotted-decimal IP address, which has four integers separated by periods.

Before you troubleshoot the problem, it is important to know what kind of problem you are dealing with.

  • If the issue is with your host and your site isn't loading, then try to clear cache and update plugins.
  • If the issue is with website content and it's not displaying correctly, then update themes and plugins.
  • If none of these help, go ahead and contact your hosting company for support.

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  1. Introduction to Networking
    19m 37s
  2. Basics of Networking Cables
    23m 40s
  3. Types of Topology Part -1
    19m 8s
  4. Types of Topology Part -2
    16m 11s
  5. TCP/IP Suite
    17m 51s
  6. OSI Model
    18m 37s
  7. Network Devices
    26m 23s
  8. Network Protocols
    34m 38s
  9. Next-Generation Firewalls
    28m 43s
  10. Assignment : Introduction To Networking
    39s

  1. IP Address
    31m 6s
  2. IP Address Classes
    29m 41s
  3. IP Subnetting
    26m 59s
  4. Class C Subnetting
    25m 47s
  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
    1m

  1. Introduction to Cisco IOS
    26m 45s
  2. Router Memory
    33m 50s
  3. Modes in a Router
    32m 21s
  4. Cisco IOS Password Configuration
    20m 43s
  5. Practical: Router Configuration
    27m 3s
  6. Practical: Commands of Routing
    19m 5s
  7. Assignment : Working With Cisco Devices
    1m 7s

  1. Routing Fundamentals
    23m 16s
  2. Static Routing
    28m 43s
  3. Default Routing
    24m 17s
  4. Dynamic Routing
    26m 55s
  5. Packet Forwarding
    4m 51s
  6. Assignment : Basic Routing Technologies
    1m 27s

  1. Advanced Routing Technologies
    20m 59s
  2. RIPv1 & RIPv2 Configuration
    26m 11s
  3. OSPF Routing
    19m 30s
  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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  8. Assignment : Advanced Switching Technologies
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  1. Infrastructure Services
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  2. Dynamic NAT
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  3. Port Address Translation
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  4. NTP Configuration
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  5. DHCP Configuration
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  6. Syslog
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  7. SNMP Protocol
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  8. Assignment : Infrastructure Services
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  1. WAN Technologies
    21m 31s
  2. WAN Device
    12m 19s
  3. VPN Configuration
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  4. Point-to-Point Protocol (PPP) Configuration
    27m 16s
  5. Assignment : WAN Technologies
    1m 45s

  1. Switching Password
    30m 44s
  2. SSH Configure
    28m 33s
  3. Port Security
    32m 11s
  4. Access Control List (ACL)
    16m 11s
  5. Configure Switch Port Security
    22m 14s
  6. Number of ACL
    29m 35s
  7. Name of ACL
    17m 49s
  8. Assignment : Infrastructure Security
    2m 18s

  1. Infrastructure Management
    9m 50s
  2. SNMP Versions
    36m 59s
  3. Assignment : Infrastructure Management
    1m 24s

  1. Basic Troubleshooting
    9m 27s
  2. Wiring Problems Troubleshooting
    27m 5s
  3. Troubleshooting IP Addressing and Host
    30m 15s
  4. Assignment : Basic Troubleshooting
    2m 11s

  1. Advanced Troubleshooting
    13m 10s
  2. Routing Failures & Troubleshooting
    35m 18s
  3. Assignment : Advanced Troubleshooting
    1m 32s

  1. Automation & Programmability
    17m 38s
  2. Wireless Security Protocols
    11m 20s
  3. Assignment : Automation and Programmability
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  1. Course Summary
    4m 12s

  1. Cisco Network Interview Questions Part 1
    23m 34s
  2. Cisco Network Interview Questions Part 2
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  1. Career Guideline
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