Questions tagged [internet]
For questions about interconnected networks.
267
questions
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0
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1answer
30 views
Reccomended set up for wifi in dense apartment block?
I live in an apartment block of 87 units & one thing most people in it complain about is the poor cellular data reception.
I have an idea of installing a fast wifi internet connection ...
1
vote
1answer
69 views
Confusion about TCP/IP data flow in layers
I'm confused about how the data flows through the layers of the TCP/IP model, so I'll just tell what I think it happens (using an email example) and I'd appreciate if you can point my mistakes.
...
2
votes
2answers
101 views
Is the Internet essentially a network of routers?
Is the Internet nothing but a globally scattered interconnected routers, and that the connections between them could be via any of Leased Line, X.25, Frame Relay, ATM, MPLS, or Ethernet?
0
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2answers
52 views
How are X.25/Frame Relay/ATM/MPLS related to PSTN?
Do X.25/Frame Relay/ATM/MPLS have their own isolated physical infrastructure? Or are they technologies invented to utilize the then existing infrastructure of the PSTN?
0
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1answer
38 views
Is there any decentralized network of any kind in actual use? [duplicate]
I've spent a lot of time trying everything I've ever found which is decentralized. Every single such network has always been a ghost town; a complete waste of time, pointless to attempt to use with ...
0
votes
1answer
65 views
Losing connectivity after creating a VLAN other than the default VLAN
I have a 192.168.0.0/24 network that serves three computers. There are no issues with this part of the existing network.
I have purchased a new Cisco SG350-28P 28-Port Gigabit PoE Managed Switch.
I ...
1
vote
0answers
20 views
How can I block the Internet and mobile data fallback? [closed]
Hoping to block outgoing WAN access from my network during certain periods as well as stopping mobile devices from auto-failing-over to their mobile data. Of course this won't be perfect since devices ...
1
vote
2answers
41 views
Modems involved in dial-up connection
I am currently studying the textbook Computer Networking -- A Top-Down Approach (7th Edition) by Kurose and Ross. In a chapter on Home Access: DSL, Cable, FTTH, Dial-Up, and Satellite, the authors ...
1
vote
2answers
141 views
Internet Scale Routing Table Size
In the link below, it is said that there are near one million prefixes for IPv4.
https://bgp.he.net/report/netstats
I want to know that it is a must for ISP routers to cache all these million IPv4 ...
1
vote
1answer
55 views
Why is XGMII little endian while the network is in big endian?
Why is XGMII little endian while the network byte order is big endian (RFC1700)?
0
votes
3answers
143 views
which is faster and why: One big file or split the big file into chunks, then transfer it over the Internet
Let's say I have a file that's 10GB and I want to transfer it over the Internet. Will it be best and fastest if I split the file into many smaller files and send it, then reassemble it after transfer, ...
0
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2answers
54 views
WiMax technology
Does WiMax technology is used by an ISP for providing cellular internet services?
Are WiMax technology different from cellular technology for providing internet? Please mention the difference if ...
0
votes
1answer
31 views
Pros and cons of the idea of parallell data transmission
I am learning the basics of internet protocols and related principles. I recently performed experiments comparing UDP and TCP. But when I did that (using the ttcp program) it was only one process and ...
1
vote
1answer
46 views
Ho to implement RPKI for our Network
I would want to implement RPKI in my network. I have gone through some documents by which i cant understand the implementation process.
What are the steps i should follow to implement RPKI in my ...
0
votes
2answers
51 views
Using 2 different ISP In case one dies
It's my first ever post in here and I hope not the last. I'm looking for some advice. I'm trying to reduce my internet downtime for a local network.
My setup.
Mix and match computer environment (...
0
votes
1answer
81 views
Why Internet protocol is divided in rows?
In simple words, why IP packet is divided in rows each one is 32 bit in length?
For example this attached image shows the IP packet has 32 bit in the first row then another 32 bit and so on.
Is it ...
0
votes
2answers
54 views
How fast DNS Propagation can practically be? [closed]
I've found via web search how info (i.e. DNS name-IP number pairing) is updated on authoritative DNS servers: https://www.freecodecamp.org/news/understanding-the-domain-name-servers-46c6bcf9afa3/.
...
-1
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1answer
44 views
How cellular networks gets internet? [closed]
Mobiles get internet but how?
From the towers, we used to get signals and communicate with others like calling or a message but coming to the internet how in the terms of networking terms like radio ...
0
votes
1answer
103 views
What happens if we try to access an IP Address that does no exist
Beginner Question: I just read an article talking about how the internet works and how routers make sure that packets arrive at the destination. However there is one thing that is not explained ...
2
votes
1answer
45 views
Bonding and switching between 2 different Links/WANs/Interfaces
Before I ask anything, I'd like to say that I pretty much searched a lot (to what I know of from keywords and terms such as "bonding" "wans" "links" "failover" "aggregate") and I couldn't find any up ...
-1
votes
1answer
49 views
MAc address or IP address? which one gets used from my pc to router? [duplicate]
Question 1) which one is used nowadays? NAT or PAT?
Question 2) as I knew, when my pc requests some website, what happens is , the data(packets) from my pc go to router. then router makes the request ...
0
votes
0answers
90 views
Block internet on a Cisco catalyst 3560 port
Good day
Is there a way to block a specific port in a Cisco Catalyst 3560 switch to block the user from accessing the internet but still have full access to the internal corporate resources. The ...
7
votes
2answers
998 views
How do routers on the backbone avoid IP address conflicts?
As the title suggests, how do ISPs, and other networks connected to the backbone ensure that their host network address isn't already in use by another backbone node, as there is no controlling device ...
0
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1answer
62 views
Estimating bandwidth requirements and productivity gain from traffic data
My small office has a 30Mbit/s internet connection, on which two or three people work. We could get twice the bandwidth at a substantial cost.
I imagine a bandwidth upgrade would slightly improve ...
1
vote
2answers
340 views
What's the role of Default Gateway?
It acts as the "gateway" to the Internet,but also from what i have read,it's the last thing a packet would be sent to while trying to route (when checking the senders' route table).
Maybe it's the ...
22
votes
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 they'd still be inside a ISP (right?), but they'd have freedom to configure stuff the way they wanted.
...
12
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8answers
6k 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?
5
votes
1answer
160 views
Analyze Network Traffic by Autonomous System Number?
I'm looking for the way to take an estimate consumptions toward internet per Autonomous System Number which could help me to make a decision if it's necessary to establish a peering with this AS's ...
0
votes
1answer
308 views
In one organization having two ISP which configured on fortigate firewall ? How can we do the failover for internet?
Organisation don't have AS number .As of now we are doing manually route for any ISP at a time.
when default Internet link is go down that time making second link enable on firewall.
I saw the some ...
3
votes
3answers
111 views
How is traffic forwarded though IXPs if route servers do not forward any traffic
while i was studying about IXP route-servers, i read that they do not forward any traffic. I get that a route server is a "control plane" entity and it is used for easier bgp peering. However, i ...
0
votes
1answer
808 views
Download Internet Routing Table
What is the best way to download a snapshot of the Internet's IPv4 routing table? I need check if IP addresses are routable. It needs to function offline, so a looking glass server won't work. I know ...
1
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2answers
100 views
Can large ISPs really offer 1Gb “dedicated” service to every home and business?
Hopefully this is on topic for this site.
While researching synchronous carrier service, so called EDIA or Ethernet Dedicated Internet Access, to a rural location in New Hampshire, USA, I came across ...
1
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1answer
58 views
Multiple Networks on Sonicwall with no access to cisco firewall
The issue im having is that i have 2 networks with 2 internet connections. We now all of a sudden have a POS system handling our network. This system blocks our email and a bunch of pages we use. They ...
5
votes
2answers
907 views
Internet structure and ISP networks in detail
I am studying about internet structure, ISPs and their interconnection. However, I have trouble connecting some terms and understanding the greater infrastructure of internet in more detail. I will ...
1
vote
1answer
712 views
Are Protocols written in programming languages?
The protocols such as HTTP, IP, BGP are written in programming languages or simply plain English text ?
If it is written in plain English, then how it is communicated with web browser, switches/...
6
votes
3answers
2k views
Need help understanding how packets travel across the internet
I've been learning about networks recently at a new job, and I did a presentation on what I've learnt so far. When I was describing the relationship between the datalink and network layer, I mentioned ...
1
vote
1answer
35 views
Are there any advantage of using multiple threads for a file upload, for an internet connected node? [closed]
I got asked in an intervew recently to design a file upload feature.
After initial discussion, The interviewer asked if I can design for multiple threads. My thought was, As the network bandwidth is ...
6
votes
2answers
352 views
Why is internet speed called Bandwidth?
Why do we refer to our internet speeds as "bandwidth" with units of measurement like "10 Mbps"?
As I understand it, Bandwidth is, as the name implies, the width of the frequency band, typically ...
1
vote
2answers
1k views
How to find a AS-SET of an asn?
How can we find the as-set of asn?
For Example I have the asn:32934.
I want the as-set?
18
votes
2answers
4k views
Is it common for ISPs to connect to each other directly?
I'm reading up on the relationship between latency and ISP interconnectivity (that higher ISP interconnectivity results in lower latency, which makes sense to me).
My understanding is that IXPs ...
1
vote
1answer
887 views
How can I reduce latency to Australia from another country? [closed]
I often do a lot of work from the UK to destination networks in Australia be it voice calls or something more benign like gaming. Both of which work best with the lowest RTT possible.
On average the ...
-1
votes
3answers
186 views
Why do we need an ethernet MAC address? [duplicate]
Don't think it's a duplicate. I've searched really many articles and couldn't find the satisfying answer.
I understand :
how ARP works
MAC address is an unique address for each NIC
IP is network ...
1
vote
1answer
136 views
How can I use a firewall as Internet Breakout?
I am currently installing a firewall in my company (using OPNsense) but I was asked to use the same system as "Internet Breakout" as well. Does anyone know how to accomplish this?
I understand that ...
2
votes
1answer
81 views
What does 22/23 and 10.3/11.4 mean and why cannot access internet?
What does this specification mean? I asked the one who gave me this but I did not understand.
Vlan 22/23 192.168.10.3/11.4
a) Does 22/23 mean that 23 subnets have been allocated
b) The forward ...
1
vote
0answers
40 views
Internet not working [closed]
I have this types of network in my office. Recently we have moved to new i BSNL internet.
My problem is when i bypass router and connect poe cable to computer internet is working but when i put ...
2
votes
1answer
120 views
Definition of bandwidth capacity for an internet connection
First, I want to test the data rate of a fibre-optic internet connection, but I understand that results are affected by the circumstances of the test, like number of hops between the CPE and the other ...
0
votes
1answer
949 views
What is the maximum distance that a cable/fiber optic internet connection can operate without the internet quality degrading? [closed]
I hope that this is not an ignorant or misinformed question, I am new and I'm trying to learn more about internet provision.
I have read that DSL has a maximum distance of 18,000ft (or 5.5 Km) before ...
1
vote
0answers
111 views
Frequent Internet Disconnection [closed]
Hello everyone!
I am relatively new to this forum, and wanted to get some useful feedbacks and resolution from "network-PROs" on my problem..
I have a network with a main router connected to the ...
-2
votes
4answers
2k views
Can we run the Internet on circuit switching?
Generally we use IP and ATM for data communication and can we use circuit switching for data communication ?
Can we use circuit switching for Internet ?
