Useful tips for everyday
How do I check for unauthorized network access? Check your log in history. Click “Start | Control Panel | System and Security | Administrative Tools…
How does SIP work behind NAT? The devices behind the NAT use private IP addresses that are not routable in the public Internet. The Session…
What is limited broadcast address used for? The limited broadcast address is defined as which sends or broadcast packet to all hosts connected to its…
Why network protocols are needed? Essentially, it allows connected devices to communicate with each other, regardless of any differences in their internal processes, structure or…
How many IPv6 addresses are in a 32? Both IPv4 and IPv6 addresses come from finite pools of numbers. For IPv4, this pool is 32-bits…
What is IP default gateway on switch? The default gateway is the first Layer 3 device (such as a router) on the same management VLAN…
What is a Vsys on Palo Alto? A virtual system (vsys) is an independent (virtual) firewall instance that you can separately manage within a physical…
Does TCP provide minimum bandwidth guarantee? If state A is never entered, the destination TCP can receive packets at the guaranteed rate at the minimum.…
How do I find my BGP AS number on a Cisco router? To display entries in the Border Gateway Protocol (BGP) routing table, use the…
What is packet capture in Wireshark? Wireshark, a network analysis tool formerly known as Ethereal, captures packets in real time and display them in human-readable…