Tag: Network Troubleshooting

13.3.2 Lab - Use Ping and Traceroute to Test Network Connectivity Topology Addressing Table Device Interface IP Address / Prefix Default Gateway R1 G0/0/0 64.100.0.2 /30 N/A 2001:db8:acad::2 /64 fe80::2 R1 G0/0/1 192.168.1.1 /24 N/A 2001:db8:acad:1::1 /64 fe80::1 ISP G0/0/0 64.100.0.1 /30 N/A 2001:db8:acad::1 /64 fe80::1 ISP G0/0/1 …

3.7.9 Lab - Install Wireshark Objectives Download and Install Wireshark Background / Scenario Wireshark is a software protocol analyzer, or "packet sniffer" application, used for network troubleshooting, analysis, software and protocol development, and education. As data streams travel back and forth over the network, the sniffer "captures" each …

16.3.1 Packet Tracer - Troubleshoot Static and Default Routes (Instructor Version) Addressing Table Device Interface IP Addresses R1 G0/0 172.31.1.1/25 2001:DB8:1::1/64 S0/0/0 172.31.1.194/30 2001:DB8:2::194/64 R2 G0/0 172.31.0.1/24 2001:DB8:3::1/64 S0/0/0 172.31.1.193/30 2001:DB8:2::193/64 S0/0/1 172.31.1.197/30 2001:DB8:4::197/64 R3 G0/0 172.31.1.129/26 2001:DB8:5::1/64 S0/0/1 172.31.1.198/30 2001:DB8:4::198/64 PC1 NIC 172.31.1.126/25 2001:DB8:1::126/64 PC2 NIC 172.31.0.254/24 …

13.4.5 Packet Tracer - Troubleshoot WLAN Issues (Instructor Version) Addressing Table Device Interface IP Address Home Wireless Router Internet DHCP LAN 192.168.0.1 R1 G0/0/0.10 192.168.10.1/24 G0/0/0.20 192.168.20.1/24 G0/0/0.200 192.168.200.1/24 G0/0/1 172.31.1.1/24 SW1 VLAN 200 192.168.200.100/24 LAP-1 G0 DHCP WLC-1 Management 192.168.200.254/24 RADIUS Server NIC 172.31.1.254/24 Admin PC NIC …

6.3.4 Packet Tracer - Troubleshoot EtherChannel (Instructor Version) Objectives Part 1: Examine the Physical Layer and Correct Switch Port Mode Issues Part 2: Identify and Correct Port Channel Assignment Issues Part 3: Identify and Correct Port Channel Protocol Issues Background A junior technician recently configured four switches. Users …

4.4.8 Packet Tracer - Troubleshoot Inter-VLAN Routing (Instructor Version) Addressing Table Device Interface IP Address Subnet Mask Default Gateway VLAN R1 G0/1.10 172.17.10.1 255.255.255.0 N/A VLAN 10 G0/1.30 172.17.30.1 255.255.255.0 N/A VLAN 30 PC1 NIC 172.17.10.10 255.255.255.0 172.17.10.1 VLAN 10 PC3 NIC 172.17.30.10 255.255.255.0 172.17.30.1 VLAN 30 Objectives …

1.5.10 Packet Tracer - Verify Directly Connected Networks (Instructor Version) Addressing Table Device Interface IP Address / Prefix Default Gateway R1 G0/0/0 172.16.20.1/25 N/A G0/0/1 172.16.20.129/25 N/A S0/1/0 209.165.200.225/30 N/A PC1 NIC 172.16.20.10/25 172.16.20.1 PC2 NIC 172.16.20.138/25 172.16.20.129 R2 G0/0/0 2001:db8:c0de:12::1/64 N/A G0/0/1 2001:db8:c0de:13::1/64 N/A S0/1/1 2001:db8:c0de:11::1/64 N/A …

17.8.3 Packet Tracer – Troubleshooting Challenge (Instructor Version) Topology Addressing Table Device Interface IP Address / Prefix Default Gateway R1 G0/0 172.16.1.62 /26 N/A G0/0 2001:db8:cafe::1/64 G0/0 fe80::1 G0/1 172.16.1.126 /26 N/A G0/1 2001:db8:cafe:1::1/64 G0/1 fe80::1 G0/2 172.16.1.254 /25 N/A G0/2 2001:db8:cafe:2::1/64 G0/2 fe80::1 S0/0/1 10.0.0.2 /30 N/A …

13.3.1 Packet Tracer - Use ICMP to Test and Correct Network Connectivity Instructor Version Instructor Note: Red font color or green highlights indicate text that appears in the instructor copy only. Topology Addressing Table Device Interface Address Mask/Prefix Default Gateway RTR-1 G/0/0/0 192.168.1.1 255.255.255.0 N/A RTR-1 G/0/0/0 2001:db8:4::1 …