What Is A Static Route Static routes are routes that have been manually configured on a device by a network admin. These routes do not change until they are manually adjusted. Advantages Of Static Routing Disadvantages Of Static Routing Use Cases For Static Routing Static routing is normally used when: Let’s look at a few […]
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In this post, we will look at Cisco’s Administrative Distance (AD) and Juniper’s Route Preference. What Is Admin Distance And Route Preference Administrative distance on Cisco or route preference on Juniper is used to choose what route to use when the exact same route is learned via different routing protocols. It is a measure of
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What is the difference between a ping scan and an ARP scan? Why might these give different results? Both are used to identify what hosts are available or “alive” on a network but use different mechanisms for detecting hosts. Ping works by sending an ICMP Echo Request packet to the destination host and waiting for
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What is Gratuitous ARP? A Gratuitous ARP (or GARP) is where an ARP message is sent without a request being made. Why Use Gratuitous ARP? There are several reasons to use a Gratuitous ARP: Some common scenarios where a Gratuitous ARP might be sent include: Note that GARP is not used in duplicate address detection,
What Is ARP? ARP stands for Address Resolution Protocol. It is a method of mapping a layer 3 protocol address to a layer 2 or hardware address. In most cases, ARP maps an IP address to an Ethernet MAC address. Something to be aware of is that ARP is used with IPv4. IPv6 uses the