Questions tagged [networking]

For questions about networking in general. Any question about all on topic network devices can use this tag.

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87 views

Options for Company A server access to Company B network (on same premises)?

I'm looking for the best way to allow access to another company's server from within our network (We are both located on same physical site). At the moment Company B have limited infrastructure and ...
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1answer
59 views

Wireless Router Multihoming?

Here's the scenario: One outdoor equipment cabinet with seven different 100 Mbps carrier feeds Currently, no trailers are wired. The point of this is to avoid running cable to each trailer Seven ...
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2answers
5k views

Error control in Transport Layer vs Data Link Layer

I understand that under the TCP/IP Protocol Suite, error control, flow control and other such services are provided by both, the Transport Layer and the Data Link Layer. My doubt is specific to error ...
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2answers
5k views

SSL/TLS belongs to which OSI layer [duplicate]

Can someone please explain SSL/TLS belongs to which OSI layer. I have been looking through many sites and all of them have different options of Application, Presentation and Session.
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1answer
705 views

In an ESXi, how can VMs communicate if they are in different vlan? [closed]

I have an ESXi and create two vlan networks, vlan 10 and vlan 20. VM1 connect to vlan 10 and VM2 connect to vlan 20. How can the two VMs communicate?
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3answers
4k views

How is tcp/ip implemented

Well, first of all I am new to networking. And I have studied the layered structure of tcp/ip protocol stack. I know that the layered structure is an abstract model, but I didn't know how the ...
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2answers
125 views

What defines a “home address”/“home network”? (Computer Networking)

In Computer Networking, and in particular to WiFi-networks, we learn that a "mobile node" (i.e. any mobile unit that can access a router through WiFi) has a permanent IP-address (the "home address"), ...
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1answer
403 views

Cisco SG300 and Fortigate 90D integration

I need help in setting up my network, currently I have the following setup. All the computers can browse the internet but when I tried to create a two groups (a group that can access the internet and ...
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2answers
466 views

How to open VSD files in OSX using Google drive? [closed]

Networking administrator from another enterprise who use Juniper router's sent me a VSD file (I use OSX for programming objective-C, Swift, Qt/C++, BASH, terminal to connect my other linux boxes for ...
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1answer
70 views

How would I add 4 buildings to a WAN [closed]

As you can tell im new to networking. I have created this LAN template for one building. The other 3 building's topologies are similar. The buildings are located in the same city. https://gyazo.com/...
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1answer
42 views

How to check the network performance for smooth transferring of huge data?

We have cisco network setup and we often find that we are having issues while transferring huge amount of data between our database, Is it possible to check the network performance and any latency ...
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1answer
379 views

TCP layer behaviour upon receiving wrong sequence number

I have the IP and port details of an already established connection between the TCP server and the client. As I am simulating packet injection attack using the packETH tool, I disguise my self as the ...
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1answer
681 views

What is the difference between GPON ONU and ONT?

The Optical Network Unit (ONU) and the Optical Network Terminal (ONT) GEEPONs can both connect with an Optical Network Terminal (OLT) via fiber cables in order to achieve an Optical Distributed ...
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1answer
2k views

How can all devices connected to the router be in the same subnet? [closed]

I have understood that router is a networking device, used to connect multiple subnets. And it does the job of routing the packets from one subnet to another subnet. As depicted in the below topology- ...
3
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2answers
933 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 ...
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3answers
2k views

What is the need of two addressing schemes (physical and logic address) in networking to identify a host? [duplicate]

In computer networking, each device/host is assigned 2 different unique address. One physical address, MAC and one logic address, IPv4/IPv6, to make communication possible between any 2 hosts in the ...
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2answers
86 views

Dose Huawei S6720 have GE port?

everyone! I want to buy a Huawei switch with GE ports, does Huawei S6720 model have GE port?
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1answer
108 views

network infrastructure configuration design in a openstack environment to enable instances to have a public IP as floating IP

Has anyone had an idea of what are the possible configuration design of a network infrastructure in an OpenStack environment to enable instances to have a public IP as a floating IP? An example below ...
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1answer
1k views

NAT device on L3 Switch

This is our current network topology. Everything works fine, but I have some concerns about it. I'm questioning myself about the following, and would like to improve what we current have. The two (...
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1answer
98 views

First time here Cisco 3750 Switch

1st time poster, I am trying to get two vlans talking to each other with out using a router. As I understand it the 3750 is layer 3 capable there for I would like to be able to get vlan 10 out to my ...
4
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2answers
61 views

Better throughput with 100 Mb NIC setting

Ran across something very odd today. Just had a symmetrical 100 Mb circuit installed at a site I’m contracting at. When the NIC is set for auto negotiate for duplex and speed, we only get ~96 Mb down ...
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2answers
266 views

Switch with VLANs and non-VLAN ports?

I have a HP 1920S switch with several VLANs configured. Is it possible to use the remaining ports as ordinary (no VLAN at all) 'dumb' switch ports? The reason I ask is that I have devices that don't ...
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1answer
119 views

IP Packet Processing

Host A (eth0-1500 bytes)--->(eth0-1500) Router (eth1-1000)---> (eth0-1000) Host B Can you please explain this case how Router process packet? if Host A send data size of 4000 bytes. Here Router ...
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4answers
166 views

Splitting network between guests and production clients

I'm sorry, if there is already answer for this question, but it's some sort of question, that is hard to find by yourself, that's why I'm asking it. I've got a task, to split one, pretty big company ...
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2answers
779 views

what is the difference between cable and dial up modem?

so the dial up modem allows you to access the Internet by converting digital data into analog signals that can travel through the telephone lines , and on the receiving end that modem will ...
6
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2answers
799 views

is there a difference between Latency and speed ?

so latency is the time it takes for bits to get from the sender to the receiver and the speed is how fast bits travel , so logically the more speed the network has the more low latency it has ...
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1answer
610 views

How to use Dijkstra's Algorithm? [closed]

I am trying to do as many examples as I can to practice Dijkstra's Algorithm however, I am confused with this particular problem as I do not know how to go about it. To solve questions like these, how ...
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1answer
623 views

Circuit Switching and Packet Switching confusion !

I'm really confused about the use of circuit and packet Switching networks example : if i have a Local Area Network and two devices were to establish a connection, they would lock out all the other ...
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1answer
174 views

Connecting two PCs together via External Ethernet cards (T568A or T568B?)

Hi, I need some expert networking advise here. I have to connect two different PC together via a unique ethernet path. Please see attach picture. I however cannot go thru a switch or a hub. **my ...
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2answers
510 views

what is a networking protocol?

i just want to start by saying that I classify my self as a beginner in networking and my only hope is to become very good as you are,so i was reading this book and i didn't understand the term ...
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1answer
71 views

Tacfire net protocol [closed]

Now I'm working in a system that has two machines communicate with each others using a protocol called tacfire net protocol, I have no information about how this protocol works or its message ...

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