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Troubleshooting Cisco Wireless LAN Solutions
Troubleshooting Cisco Wireless LAN Solutions Wireless LANs (WLANs) provide network connectivity almost anywhere and at much less cost than traditional wired LANs. For this reason, WLAN solutions are commonplace in most business environments. In addition to implementing and troubleshooting wired LAN solutions, you are also expected to understand how to implement and troubleshoot Cisco Unified…
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DHCP Snooping
DHCP Snooping - Theory and Lab DHCP spoofing and starvation attacks are methods used by intruders to exhaust the DHCP address pool on the DHCP sever, resulting in resource starvation where there are no DHCP addresses available to be assigned to legitimate users. Learn about DHCP in our Cisco CCNA video training course or read…
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DHCP Ports
Understanding DHCP Ports Dynamic Host Configuration Protocol (DHCP) is used to assign hosts IP addressing information dynamically, which includes IP address, subnet mask, default gateway, and additional optional parameters, such as Domain Name Service (DNS) servers, Windows Internet Name Service (WINS) servers, and Network Time Protocol (NTP) server information. DHCP ports are UDP port 68…
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LLDP
Link Layer Discovery Protocol (LLDP) Cisco created CDP to address an issue left unresolved by any open standard protocol. Eventually, a standard protocol was released, defined by IEEE standard 802.1AB, and it’s called Link Layer Discovery Protocol (LLDP). LLDP provides many of the same features as CDP, but the similarities don’t end there because LLDP…
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Cisco Packet Tracer Review
Packet Tracer Review - PT vs. Live Cisco Equipment Let me start out by saying that I’ve got no beef with Cisco Packet Tracer and have used it myself, in fact, many times. But, I wanted to give you my honest opinion of how useful it is for the CCNA exam and beyond. I have…
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