N4N008: What Is a Default Gateway?

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לפני שנה 34:15

MP3•בית הפרקים

Today’s topic is the default gateway, essential for routing traffic between networks. We explain its purpose, configuration, and the consequences of incorrect settings. Using home networks as an example, Ethan and Holly illustrate how default gateways enable devices to communicate with external networks. The discussion also covers routing tables, subnet masks, and the differences between... Read more »

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#Tech #Packet Pushers

N4N008: What Is a Default Gateway?

N Is For Networking

published לפני שנה

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MP3•בית הפרקים

32 פרקים

#Tech #Packet Pushers

כל הפרקים

N Is For Networking

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N4N031: When Is It Time For a Routing Protocol? 54:39

לפני 3 ימים54:39

54:39

If you need to route in your network, you can program static routes into all your routing-capable devices. And this can work. But at some point, you’re probably going to want to switch to a dynamic routing protocol. On today’s N Is For Networking, Ethan and Holly discuss the differences between static and dynamic routes, ... Read more »…

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N4N030: Network Shapes and Sizes 1:03:06

לפני 10 ימים1:03:06

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What shape is your network? In other words, what is its topology? On today’s episode, we discover the different types of network topologies and designs used in the enterprise, data center, and service provider networks. We cover leaf/spine, hub and spoke, point to point, mesh, and others. We also talk about how topologies affect traffic ... Read more »…

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N4N029: Four Goals of Network Design 1:04:17

לפני 17 ימים1:04:17

1:04:17

Let’s explore four goals of network design: stability, speed, scalability, and security. These goals are based on Ethan’s experience designing, building, and operating networks. Network architects and design experts might have other objectives, and that’s fine, but these four goals are the basis of today’s episode. Ethan and Holly discuss why these four goals are ... Read more »…

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N4N028: The Wide World of WANs 1:01:13

לפני 24 ימים1:01:13

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We wanted to do an episode on SD-WAN, but realized we needed to set the stage for how wide-area networking developed. That’s why today’s episode is a history lesson of the Wide Area Network (WAN). We talk about how WANs emerged, public and private WANs, how WANs connect to LANs and data centers, the care ... Read more »…

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N4N027: Tunneling Quirks & Features 48:42

לפני 4 weeks48:42

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On today’s show, we’re going to dig deeper into tunnels and explore some of the quirks and features of tunnels. This week we’ll discuss maximum transmission units (MTUs), maximum segment size, IP fragmentation and more. Today’s bonus material is more RFCs – RFC 4821 and RFC 8899. Episode Links: What Is a Tunnel? – N ... Read more »…

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N4N026: What Is a Tunnel? 53:43

לפני 5 weeks53:43

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Let’s dig into tunnels. While some network engineers may want to quibble, a tunnel is when you put one packet inside of another packet to carry it across a network (frames also come into the picture, so hold off on your follow-ups for now). On today’s N Is For Networking, Ethan and Holly explore this ... Read more »…

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N4N025: DHCP – Someone Get Me an Address! 56:43

לפני 6 weeks56:43

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The Dynamic Host Configuration Protocol (DHCP) assigns an IP address to a host that joins a network, along with other information necessary for the host to communicate. DHCP also has more to it, so this week’s episode is meant to be a solid introduction to this essential network protocol. We first discuss what it is ... Read more »…

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N4N024: DNS Security, Record Types, and Reverse DNS 49:19

לפני 7 weeks49:19

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This week we continue with DNS. In our last episode we covered the basics; today we expand our scope to cover topics such as security for DNS, reverse DNS, and DNS record types. For dessert this week, a serving of Raspberry Pi and Happy Eyeballs. Episode Links: DNS: Turning Names into Numbers – N Is ... Read more »…

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N4N023: DNS – Turning Names Into Numbers 48:01

לפני 8 weeks48:01

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The Domain Name System (DNS) keeps the Internet running. On today’s N Is For Networking podcast, we talk about how DNS transforms human-readable host names into IP addresses so that Internet traffic can be sent to the right place. We talk about root name servers, Top Level Domains (TLDs), and other elements of the DNS ... Read more »…

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N4N022: SNMP Fundamentals 57:40

לפני 9 weeks57:40

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Following last week’s introduction to network monitoring, we discuss the Simple Network Management Protocol (SNMP), one of the most implemented types of network monitoring. We discuss how it is organized, operations that SNMP can perform, and versions of SNMP. This week’s bonus conversation is a discussion on the future for SNMP. Episode Links: MIB tree ... Read more »…

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N4N021: Is It the Network? Network Monitoring Basics 56:03

לפני 10 weeks56:03

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How do you know what is happening within your network, especially when something isn’t working? Network monitoring is the answer. On today’s show, we’ll start with the basics of network monitoring. We’ll cover what it is, how it’s used, and suggest some paid and open source network monitoring tools. This week’s bonus material is a ... Read more »…

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N4N020: To Cert Or Not To Cert? 57:48

לפני 11 weeks57:48

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To cert or not to cert? That is the question Holly & Ethan discuss on today’s episode. Will a certification really land you a networking job? Are certs the guaranteed path to tech career success? We consider this, talking through the benefits, challenges and even risks of networking industry certification. And there’s some bonus material, ... Read more »…

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N4N019: Howdy, Neighbor! And Other Routing Stuff 42:36

לפני 12 weeks42:36

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In today’s episode, we continue the discussion about routing and routing protocols by focusing on commonalities rather than differences among protocols such as OSPF, RIP, EIGRP, or BGP. We explain how, in general, routing protocols discover each other, communicate, maintain relationships, and exchange routing information. Next, we explore the topics of selecting best paths in ... Read more »…

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N4N018: RIB vs. FIB & Administrative Distance or Route Preference 52:21

לפני 13 weeks52:21

52:21

Ready for more routing and routing protocols? Today we discuss the roles of the network operating system (NOS), routing protocols, the Routing Information Base (RIB), and the Forwarding Information Base (FIB). We also include the dynamics of routing protocols, the importance of hardware like TCAM for performance, and the concept of administrative distance or route ... Read more »…

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N4N017: Routing Fundamentals 49:48

לפני 14 weeks49:48

49:48

On today’s N Is For Networking, we explore the fundamentals of routing, focusing on layer 3 of the OSI model. We explain the concepts of routers, routing tables, and routing protocols, and discuss why it’s important to have a firm grasp of these concepts before you tackle advanced topics such as VXLAN and EVPN. Today’s ... Read more »…

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N4N008: What Is a Default Gateway?

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