Questions tagged [network]

For questions about Networking that includes design, and use of a network, the physical cabling, hub, bridge, switch, router, and so forth. Anything in relation to networking and its technologies.

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1answer
188 views

What is decentralized internet?

I have to do a college project on decentralized internet. I have tried searching on google and Wikipedia but not found any proper article (not "properly explained" to me at least). Can anyone give me ...
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2answers
963 views

Understanding how devices on a LAN/VLAN discover the existence of other local devices

Let's say you have a brand new 192.168.1.0/24 network that consists of a router, switch and two hosts (H1 and H2). H1 would like to communicate with H2, but since this is a brand new network and no ...
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2answers
336 views

Does the same IP cause IP conflict if one is from /22 other is from /24?

I have two hosts. They both have the same IP/subnet, ex.: 1.2.3.4/24 on both. I know this is bad, since there will be duplicate IP in the network. OK. But: If I have different (?) ranges: 1.2.3.4/...
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3answers
117 views

But confused about SSL VPN and IPsec Site -Site VPN

What might be difference between sslvpn and site-site vpn . Which one among two is secure and it's significance
6
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3answers
3k views

Is there any reason to use a hub over a switch?

Given that hubs are essentially the same as switches, as far as I know, except they share bandwidth between all connected devices, while switches do not, resulting in faster connections. I am simply ...
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1answer
689 views

What is the meaning of the CS and EE abbreviations in these sentences?

They are from Tanenbaum network book: In CS: Bandwidth is the capacity of the media in bits/sec In EE: Bandwidth is the width of the frequency band, measured in Hz
-1
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1answer
114 views

different network mask and subnet mask and netmask [duplicate]

1- what is network mask? 2- what is subnet mask? is there any differnt between network mask and subnet mask? i'm tried to search about network mask and nothing found is it called netmask ? thank you
22
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6answers
6k views

What stops someone from configuring their network with IP addresses they do not own?

Here's the scenario. I was picturing a university that bought a range of IP addresses. I think their network would still be connected to an ISP (right?), but they'd have freedom to configure stuff the ...
16
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8answers
9k views

Why are IP addresses given to each interface and not device? What would the implications of that be?

Why do we need to give IP addresses to each interface? Wouldn't giving one to each device be enough?
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2answers
5k views

Network Gateways vs Interfaces

When looking at the contents of a routing table section on the Wikipedia article on Routing Tables, it contains a table as an example of a routing table with two headings which have an unclear ...
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2answers
4k views

The best way to understand Vlans?

Every time i try reading about the configuration of a device and adding it to the network, i always face a problem. The problem is basically am not able to understand Vlan's, and how for example some ...
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2answers
1k views

Loopback Interface speed is 10 Mbps but Incoming and Outgoing Traffic is in Gbps

I am writing a script which mails interface data to network admin. For this I'm using LibreNMS and RRDTool to gather data. On inspecting one of the loopback interfaces, I found that the interface ...
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3answers
1k views

Fiber between two sites - no signal lights

We need to have fiber connection between two sites (distance less than 300 meters from each other). Currently there is multi-mode fiber connected to old switches working nicely. Now we are updating ...
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2answers
172 views

Ethernet connection wireless bridge

I am a member of Stackoverflow, and new to Stackexchange, I have a question to which I couldn't yet find an answer to. I'm wondering if there exists such a device as some sort of a wireless bridge to ...
0
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1answer
41 views

Is there a way to determine my network transportation to specific path?

How can I determine my network transportation to specific path. I would like to determine that my data packages will go through specific routers.
3
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2answers
1k views

Connect two routers to a single uplink for full redundancy

I have a single uplink with my ISP at a data center. I have 2 routers (CISCO 3850). How do I connect these routers to that uplink WITHOUT a network switch? That switch will be a single point of ...
3
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2answers
910 views

Cisco: Two interfaces on one network

I'm a newbie to Cisco Equipment and IOS, but got myself a Cisco 2811 and have been playing with it and getting to grips with the basics quite happily. One problem i'm having is trying to get two ...
2
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1answer
443 views

NAT and two internet providers, how to configure failover

Will you please help me to setup ISP2 as a failover internet provider. Configuration as follows: ip source-route ! ip cef ! no ip domain lookup no ipv6 cef ! multilink bundle-name authenticated ! ...
2
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2answers
437 views

Why are proxies implemented on the application level of the OSI model?

Why are all proxy servers implemented on the application level of the OSI model, and not the network level? Is it possible to implement a proxy server on the network level? Such as on the gateway ...
2
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1answer
726 views

Waiting time in CSMA/CD doubt

I have a doubt regarding the time a particular node will wait after collision. I am using numerical values here so that one can easily understand my doubt. Suppose in a network, we have 2 nodes A ...
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2answers
1k views

Cisco nexus CRC error on interface

I have dual stack vPC setup between 4 cisco nexus switch as per above design. I have noticed recently that getting CRC error on cisco 3064 all 4 interface connected to N9K, and during peak traffic ...
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1answer
40 views

I have issue with MSS and window size [duplicate]

I made a short example because I have tried understanding the difference between MSS and window size in tcp header when we consider a sender and a receiver. So let's say sender and receiver use the ...
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2answers
2k views

Confused about the results from the cable tester

A little bit of backstory, just in case you want some context. In the last couple of weeks the network at least internally has slowed down. As far as I can tell the only things that have changed has ...
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3answers
619 views

ARP Table basics

I'm using the arp -a command to look at the ARP table on my personal computer. After executing the command it shows two types of addresses, dynamic and static. What do the dynamic and static types ...
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1answer
290 views

What is the meaning of the word 'band' in the following terms: broadband, baseband and bandwidth?

I am interested in the terminology of the following words: baseband, broadband and bandwidth applied in tellecomunications. What is the meaning of the words, how were they formed and what do they mean ...
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1answer
91 views

What steps must be accomplished in each layer of the TCP/IP model to connect a website?

What steps must be accomplished in each layer of the TCP/IP model to connect a website?