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Video conference traffic

Lack of understanding regarding this, so please bear with me.. I have to set up a video conference room which will have 1 AP, a desktop in the corner, Large TV screen opposed to a projector, and a ...
1
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1answer
8 views

Routing between two sites using FTTC Broadband and E-Band Wireless

I have two sites, both with 80/20 FTTC broadband connections that terminate at the standard white box BT modem. The connections both have fixed IP. I’d like to connect these up to each other and form ...
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0answers
10 views

Are there any limitations to having a router connected to a router? [closed]

I have router A in a very bad spot so I've been thinking of power-lining one of its LAN ports to another location and connecting another router there. This second router would have its own clients but ...
1
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0answers
15 views

How strong a ground loop would necessitate the use of isolation transformer in Ethernet? [closed]

One reason against the use of shielded twisted pairs in residential environment is the possibility to create a group loop between equipments, as discussed in Shielded Twisted Pair (STP) termination ...
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0answers
6 views

ARRIS CM820S modem and WiFi [closed]

this if my first post on this stack! I've recently moved in a flat to see an Arris CM820S modem, which is working fine when i connect it directly to the PC using standard RJ45 cable, which is the only ...
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0answers
7 views

IB/NDSPI vs. Sockets [closed]

On Linux, RDMA support is offered via IB verbs while on Windows it is offered via NDSPI/NDKPI. Why can't both OSes re-uses existing socket interface? Is there something about RDMA that cannot be ...
1
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2answers
45 views

Are all packets addressed with the MAC address of the router as they leave the machine?

In the Comptia Network+ All in One, it is said that most home routers have a switch built into them. It is also said that the first thing the router does is strip off any layer two information present ...
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0answers
8 views

How can I disable auto dns update from router? [closed]

I have iball 300M MIMO wireless-N broadband Router. I found that the dns iball.wifi.net is automatically adding in the system. I don't want this. I am using my own dns. How can I disable it?
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1answer
16 views

What is the purpose of Cisco's `ip domain round-robin` feature?

While configuring one of Cisco's routers and reading documentation I've found an interesting feature: ip domain round-robin. Documentation says, that this options makes dns server rotate entries ...
-1
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0answers
34 views

Hello, Network Problem [closed]

I have a question I wanted to implement a program in C++, Object Oriented and threaded. The program must be run in a shell, like the example: PROGNAME ifs=[IF-LIST] ./desiredprogram ifs=eth01,eth02,...
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0answers
18 views

Please correct my VLAN conception [duplicate]

As I know VLAN is a control function for layer 2 engine. I think VLAN in layer 2 is cutting switch ports as group and specify trunk port in layer 1. So VLAN ID in layer 2 means each VLAN pool identity ...
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2answers
181 views

Recommended switches and routers configurations for a building of 5 floors?

Just recently I had an interview for a network Engineer position. The interviewer asked me the following: You have a building of 5 floors, where each floor has around 30 employees. What is your way of ...
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0answers
23 views

How do I setup a datacenter in my home [closed]

So I am buying 50 blade servers tomorrow for $1600 and I plan on setting up a datacenter. (I have been given the option to colocate or set it up myself so I am not worried) I have a 1gbps home ...
-1
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0answers
11 views

Arduino parses UDP packets through Ethernet with gibberish in it [closed]

Arduino Yun (with built-in Ethernet) is connected to a PC (through Ethernet) which is connected (through WiFi) to my router. Is set to receive UDP packets from another PC (on the same network). That ...
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0answers
14 views

Assigning Static IP to the servers connected with router through switch [closed]

I am looking out a way to assign static IP to the servers which are connected to a 16 port switch with router at the beginning. Here is the how the architecture looks like I have got /28 IP pool from ...
0
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0answers
6 views

Unable to connect to wireless networks [closed]

I recently moved to a different hostel at my university, and my router's wireless network, which worked fine in the previous hostel, suddenly started behaving weird. My devices (tried with my phone ...
-1
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0answers
7 views

Proxy error in BurpSuit [closed]

Getting this error in burpsuit.I don't know What is this! Even my intercept is off.I just know is that this is a proxy error.
0
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2answers
20 views

why sometimes we need to use Broadband Transmission (Using Modulation)?

I was reading a textbook which says: Baseband transmission requires that we have a low-pass channel, a channel with a bandwidth that starts from zero. This is the case if we have a dedicated medium(...
-1
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0answers
15 views

Modem take place of my public address [closed]

I want to access my localhost remotely, my localhost ip & port is:192.168.1.3:8080. I did all necessary things(static ip, port forwarding...). Inside my network everything work properly so i can ...
0
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0answers
16 views

HPE 5130 Comware dot1x logs [closed]

I have recently installed a new switch: HPE 5130 with Version 7.1.070, Release 3506P02 and I also have another HPE product : HPE 3600 with Comware Software, Version 5.20.99, Release 2112P05 and there ...
0
votes
1answer
11 views

Juniper MX: NTP broadcast on two VRFs with the same addressing

In Juniper, NTP broadcast is set at system level, so two VRFs cannot use the same addressing and use NTP broadcast at the same time. Is there any alternative?
0
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0answers
32 views

CAT 5 cables work, but CAT 6 doesn't? [closed]

My setup is, Router - CAT 5 cable - CAT 6 rated wall socket - CAT 6 cable - CAT 6 rated wall socket - CAT 5 cable - PC This works fine but the speed is limited. When I replace the CAT 5 cables with ...
0
votes
1answer
38 views

TCP/IP conditions to end an etabilished connection

What happens if the Client crashes and never closes the connection? Or the server crashes before being able to send a ACK FIN packet. Are those cases implemented in software?
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0answers
19 views

Cant access wireless devices from a wired device [closed]

I have a ZTE F660 router provided by the ISP. My PC is connected through wire/ethernet cable to the router. Recently I was tinkering with a microcontroller known as ESP 8266 commonly used for simple ...
0
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0answers
10 views

How does an ACL work which permits outside-in-traffic and whose destination is outside network? [closed]

I'm very confused about an ACL in asa which permits outside-in-traffics and whose destination is outside network. I need to know if the configuration below is possible. If so, would you tell me if it ...
0
votes
1answer
20 views

How to identify Digi CM Console Server via command line/SSH?

Digi CM Console Server is a Secure Access and Management for Servers and Network Devices https://www.digi.com/products/networking/infrastructure-management/console-servers/digicm#overview How do we ...
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0answers
10 views

public static NAT IPv4 address also for outgoing traffic? [closed]

Since my ISP doesn't assign public static IPv4s anymore (but only IPv6), I bought a static NAT IPv4 address, which I use as my "public IPv4 address". The main reason I need this is that I'm ...
0
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0answers
21 views

How to init connection with a Cisco over serial & minicom?

Trying to connect to a Cisco router, in purpose to learn Cisco skills that could help me finding a job. So, I plugged a cable in the rj45 Console (blue) port of a Cisco 888 router, and other end into ...
0
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3answers
35 views

Can the network devices run out of ephemeral ports due to high use of websockets?

This might be a really stupid question, but something I really want to understand. My understanding is a tcp connections staying open indicates that each of the network devices between the client and ...
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0answers
15 views

Don't play music on hold for conferences

At my workplace we use Cisco video phones, CUCM, VCS, and MCU for conferences. Recently we have had some embarrassing situations where someone puts the conference on hold and everyone has to talk over ...
-1
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0answers
15 views

Connecting a Dell Box to the Internet [closed]

Suppose you have a dell box which has an ethernet cable going to a router. So you have internet. Would you be able to ssh into a server as well? Or does having internet make it impossible to get ...
-1
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0answers
17 views

Is there any such thing as a decentralized network of any kind which actually has some serious amount of users? [closed]

Note: I asked this earlier today. It was redirected to: "Is an entirely decentralised peer-to-peer network feasible? How far could it be scaled?". That question, and the answers, are sadly ...
-1
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0answers
9 views

Is there any such thing as a decentralized network of any kind which actually has some users? [duplicate]

I have exactly one .onion bookmarked in my Tor Browser. I use it once every few months. I have tried out countless decentralized projects and they are all absolute ghost towns. Nobody uses it. I have ...
0
votes
1answer
24 views

iperf3 UDP tuning

I am trying to test throughput in the network. But when i start iperf3 client for sending UDP packets it sends TCP SYN packets. Why does it behave like this? (it should not send udp tcp syn while ...
2
votes
6answers
2k views

Why can't we create a hierarchy of hubs?

I was reading the Comptia Network+ All in One book and I came to know that we cannot create a hierarchy of hubs. My question is why so? Are MDIX ports simplex? Why is it not possible for the hubs to ...
0
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0answers
6 views

Azure Private Link [closed]

In Azure Private Link, how is it possible to have for example a SQL server which does not have an internet gateway, NAT devices or a public IP address but still being able to connect externally ...
0
votes
2answers
21 views

How to access Cisco 2500 series admin GUI interface with known IP address when Firefox/Chrome state connection cannot be reached?

I know the username and password of my Cisco 2500 series wireless & ethernet controller and its IP address, but when I enter the IP address into a web browser (Firefox and Chrome) it states the ...
0
votes
1answer
23 views

Unicast and Multicast MAC address convention

I need help in understanding how Unicast and Multicast MAC address is differentiated as explained in wiki. According to what I understood, when the least significant bit is set as 0 in the first octet ...
1
vote
2answers
37 views

difference between switchport trunk encapsulation dot1q and switchport mode trunk

I am new to network engineering and I am currently delving deep into L2 functionality.what is the difference between these two commands: 1 switchport trunk encapsulation dot1q 2 switchport mode trunk ...
0
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0answers
13 views

100 devices on virgin media cable broadband [closed]

Some simple questions for the experienced. Assuming 100 devices are running the same application which requires 3Mbps and all devices are connected to the same internet connection of 512Mbps such as ...
0
votes
1answer
16 views

Blocking 2 VLANs from accessing a specific VLAN on a network

I'm working on a project in packet tracer and I have a server connected to VLAN 10. VLAN 10 has a single server device on it and the IP scope is a /30. I have 8 other VLANs across 2 sites. The 2 ...
0
votes
0answers
12 views

What kind of SMB attack is this? (Wireshark pcap) [closed]

Hi, I am suspecting that this should be a kind of SMB exploit. Can you identify it ?
0
votes
1answer
13 views

What type of attack could this be ? (Wireshark pcap) [closed]

If I understand it correctly the "client" sent an unencrypted password to the pop3 server consisting of a long string of As. Is this a type of attack and if yes, how does it work?
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votes
2answers
23 views

How is this tool called for sorting out wires on newly installed patch panels?

I've lost my tool I use frequently. Since I don't know the name for the tool I am having a hard time to find a replacement. How is above tool called? It is meant for patch panels to correct faulty ...
0
votes
2answers
26 views

Unable to ping but I can see the arp in switch 4451

Recently I got to know that I am unable to ping the IP addresses behind vlan236 from core1 whereas I am able to ping the same from core2 and able to ping the IP address of vlan236 from my laptop as ...
0
votes
0answers
13 views

Using 2nd router as extension of my main router, LAN works but WLAN doesn't [closed]

I recently followed a guide how to use an old router to extend my network at home. Everything was smooth, made sure the range I have set the DHCP Server won't conflict with anything (Main Router, from ...
0
votes
0answers
14 views

Client can't connect when a Layer 2 Load Balancer is used [closed]

I've built my own load balancer for a project that I working on for my employer and it capture layer 2 raw packets from Libpcap and forward them to #2 NIC also it capture packets from #2 NIC and ...
0
votes
0answers
10 views

How to access a local server from the internet? [closed]

I have a web server locally, but I would like to be able to access it from the internet. I configured No-ip on the server and created virtual servers in Load Balance, TP-Link and ISP modems. But ...
0
votes
1answer
22 views

how to ping a internal ip from a outside network? [closed]

My public IP address is 116.206.220.X, where X is a number. My public IP address is static. I am getting this by typing the command "curl ifconfig.me" When I type pathping in cmd for 8.8.8.8 ...
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votes
0answers
14 views

quiero acceder a mi ip desde otra red [closed]

Buen dia trato de realizar un accedo por medio de xampp el cual por medio de mi ip pueda ver mi sitio web pero el prblema es que hay varias redes conectadas a la estructura entonces necesitaria una IP ...

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