Useful tips for everyday
Why do we need Fragment offset? Fragment offset (13 bits) – use to identify sequence of fragments in the frame. It generally indicates number of…
Is wireless access point better than router? In conclusion, access point vs router: if you want build more reliable wireless network, you may need a…
What happens to tagged traffic on an access port? These may also be referred to as “trunk” or “access” respectively. The purpose of a tagged…
Why do I have 2 Ethernet ports? In a network redundancy application, a dual Ethernet device is connected to two separate networks in order to…
Is EtherChannel the same as LACP? EtherChannel and IEEE 802.3ad standards are very similar and accomplish the same goal. EtherChannel supports both LACP and Cisco’s…
How does nmap do OS detection? Nmap OS fingerprinting works by sending up to 16 TCP, UDP, and ICMP probes to known open and closed…
How do phones work with radio waves? Cell phones use radio waves to communicate. Radio waves carry the information and travel in air at the…
Does router Decapsulate the packet? After decapsulating the packet, router uses the destination IP address of the packet to search its routing table for a…
Which field in an Ethernet data frame determines the upper layer protocol of a network device? Ethernet II framing (also known as DIX Ethernet, named…
Why do we use static route tracking? The Reliable Static Routing Backup using Object Tracking feature can ensure reliable backup in the case of several…