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.

Filter by
Sorted by
Tagged with
2
votes
3answers
102 views

IS there any way to load balance traffic on both links configured with OSPF

Branch network is connected with DC through two point -point leased lines of different bandwidth . I want both links to be in active -active mode. How can use both link in active -active mode we are ...
2
votes
3answers
59 views

How communication is enabled in multiple different network using different routing protocols

I do have challenge in ensure communication between my organization and different stack holder organization connectivity as in my network we are using static route and vendors are using OSPF routing ...
0
votes
1answer
41 views

How loops appeared when skipped listening and learning state?

In STP convergence process, I just know that after a link failed a blocking port become listening state for 15 seconds then learning state for 15 seconds. I've read a CCNA 200-301 Guide explained me ...
0
votes
0answers
14 views

What can understand from (Rst ack) packet capture in wireshark [duplicate]

I am live troubleshooting traffic in riverside and when checking traffic logs (RST ACK) What is this mean is this default behaviour before closing session or session is getting rest from source.
2
votes
2answers
92 views

With private VLANS concept Vlans can be restricted and control same as access-list is private VLAN is enhanment for access-list

With private VLAN different vlan traffic can restricted and control . Even this we can accomplish with access-list configure my question is private-Vlan is enhancement for access-list or what ..
1
vote
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
1
vote
1answer
41 views

What is difference between the native vlan and the default vlan [duplicate]

What is difference between Default vlan and native vlan it's always confuses me
1
vote
1answer
226 views

OSPF route advertising same subnet in same area 0?

Now: SW02 currently running OSPF area 0 with redistribute connected subnets which includes VLAN10 with another router/switches which isn't in the picture and not in the scope of this question; VLAN10 ...
2
votes
2answers
66 views

When traffic is intiàted from pc is ANDing process or ARP process start working first

When traffic is initiated from desktop which process starts first; the ARP process or ANDing process?
1
vote
2answers
180 views

Can we use both RSTP and MSTP spanning tree protocols in same network

I have network connecting with 500 users and 50 servers connecting different layer3 switches and layer2 switch. Can i run rstp in few switches and mstp on remaining switches.
5
votes
2answers
121 views

Standards for network design / installation diagramming in CAD

Ok, So I know this is a strange question and might be off-topic, but I really do not know where is the best place to ask it ( and where better that a SE site of network engineers / designers ). TL;DR ...
0
votes
1answer
30 views

routing a network with 2 interfaces and vpns [closed]

I'm pretty inexperienced in network but here is the idea of what i want to do: I have 2 interfaces: Interface #1 = fast internet Interface #2 = stable internet with static ip address this is the ...
2
votes
1answer
65 views

Do switches allow parallel connections?

I am new to networking and not from Engineering domain. Sorry If I sound silly. I came across an article on Network Switches and How they work. Diving deep into it, I found some interesting topics ...
1
vote
2answers
75 views

How can i optimize this network

I got a router on a stick and I want to optimize it by reducing its cost and also the configuration costs This topology is to facilitate inter Vlan routing so Vlan1 can communicate with Vlan2. PC0 and ...
1
vote
1answer
35 views

How a wifi AP handle packets

Computers are connected to a wifi AP. The wifi AP is connected to a L2 switch. A server is also conected to this switch. When computers sends packets to the server, how the wifi AP manages the paquets?...
0
votes
1answer
268 views

Network Protocol vs Framework?

I've been a network engineer for almost 4 years now. I thought I understand what a network protocol means. but now I'm having doubts. For me, Ethernet is a protocol used at layer 2. there would be ...
0
votes
1answer
152 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 ...
0
votes
2answers
28 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
55 views

Couldn't connect 2 networks in a single router

I made a topology which has 2 separate networks connected to a router, each network has 1 switch and 2 pc's. I took a screenshot of the topology: https://i.gyazo.com/f99231fc75a41faa3ccd0315859fd84f....
1
vote
2answers
97 views

Router and switches routing protocol configuration

If I connect switches in each building together, which also link a router, does a routing protocols need to be configured on the switches and the router, or just the router?
-1
votes
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
0
votes
1answer
50 views

i am so curious about naming IEEE standard network,like why do we use “802” these three numbers? [duplicate]

I learnt some information about networks in Wiki,and I am so curious about naming IEEE standard networks. As far as I know: The standard name of Wifi is 802 The standard name of Ethernet is 802.3 The ...
1
vote
2answers
352 views

EVPN/VxLAN border-leaf question

I have couple of question in above design where i have typical clos network design and my leafs are configured for Cisco vPC for redendency and anycast gateway and running OSPF for underlay and BGP ...
0
votes
2answers
36 views

Is it possible to completely mask an IP address to a point where no IP address can be detected yet an active connection is live?

I’ll keep it short and sweet; We all know to connect to internet you’ll need an address like 2001:x** or 192.x**. Using a vpn, while it does encrypt things and mask your IP, it still returns an IP. ...
2
votes
2answers
332 views

Routers and layer 3 switches for connecting two buildings on site using fiber

I understand layer 3 switches are essentially routers, but often don't have the capabilities a router has, e.g. NAT. So I'm trying to work out where it would be necessary to have layer 3 switches vs ...
0
votes
1answer
276 views

Automatic backup internet connection, is it possible? [closed]

I am trying by best to understand this topic. Apologies if this isn't the correct format or if it's lacking required information, I am little more than a home user. If someone could help point me in ...
0
votes
4answers
110 views

Private IP Address Subnetting Standards. How strict are they today? [duplicate]

How strict is this standard today. The 172.16.0.0/12 range is: 172.16.0.0 – 172.31.255.255 Conceptual Config 172.Location.VLAN.Host Location A (10): VLAN 10 - 172.10.10.0/24 VLAN 20 - 172.10.20.0/...
0
votes
2answers
187 views

Proof of the formula of redundancy bits in Hamming code for single error correction problem

m ---> number of data bits of a frame r ---> number of redundancy bits n=m+r ----> lenght of a codeword(data + redundancy bits) Imagine that we want to design a code with m message bits and ...
1
vote
4answers
154 views

Assigning IP addresses to multiple switches

Thank you in advance for taking the time to read my question, i appreciate it. I am in need of help on IP assigning to 4 brand NEW Araknis switches that I am replacing with the current netgear/tp-link ...
0
votes
1answer
27 views

Public IP address does not work in internal network [closed]

I have configured port forwarding to my system from the router configuration menu, when I try to access the public IP address in the internal network it does not respond but it is accessible outside ...
2
votes
1answer
801 views

Two Datacenter location with same BGP AS number

Currently we have DC-1 running eBGP with my ISP using AS:1111 and i have prefix 1.1.1.0/24 and using BGP Default route because we have only single ISP. Now we are opening new Datacenter in remote ...
0
votes
2answers
36 views

multicast udp streaming dst and src address assignment

If I am streaming on a host using the internet outside my nat, how is multcast addressing work with respect to streaming for example, if the application outside sends to 224.0.0.1 how is the packet ...
1
vote
2answers
64 views

IPSec Tunnel Mode

Assuming an organisation has 2 offices at two different locations and needs secure communication between them. As far as I understand IPSec, we can use tunnel mode to provide end to end encryption for ...
0
votes
2answers
85 views

IPV6 static Routing

I'm new to networking and I'm currently learning about IPv6 in static routing. I set up an environment in Cisco Packet Tracer like this: have connected two routers with serial medium , each router ...
0
votes
1answer
106 views

What happens if the localhost does not interpret 127.0.0.1 as the loopback address?

For the sake of the example, assume gateway to be 10.0.0.1 and host A (my machine) to be 10.0.0.2. If gateway (10.0.0.1) is running a service bound to a port on localhost only, the service should be ...
0
votes
1answer
26 views

Why we use IP address in sockets? [closed]

When a server want to create a socket, it will use a combination of its IP address and some well-known port, let us say 80. So, when a segment arrived, both the server IP and port 80 will be used to ...
1
vote
2answers
212 views

BGP influence outbound traffic based on prefix

I have two router core1 and core2 connected with ISP router border1 and border2 using eBGP peer and i have 5 public subnect (/24). My ISP sending me default route instead of full BGP table. Question:...
0
votes
0answers
107 views

vPC + HSRP load-balancing issue on Cisco CML 2.0 lab

I am playing with new cisco cml 2.0 lab simulator and seeing strange behavior not sure if its real issue or limitation of cisco lab. dist1 and dist2 is my vPC (NSOX 9000v) peers, and tor1 is IOSv ...
0
votes
1answer
31 views

Who can get ARP packets? [duplicate]

I'm new to networking. And as far as I understand about ARP messages, Alice can only send ARP to Bob if two are connected. But if Alice and Bob are connected to a router, but not connected to each ...
0
votes
1answer
153 views

How is the PPP protocol byte-oriented as well as bit-oriented?

Many articles considered PPP as a byte-oriented, and the others mention it as a bit-oriented. +----------+----------+----------+----------+------------ | Flag | Address | Control | ...
0
votes
0answers
9 views

difference between Local Internet Breakout and regional internet breakout? [duplicate]

I searched over the internet but could not find the answer so i want any one of you to help me out in this. i don't know whats the difference between both of the terms and which is more preferable or ...
0
votes
1answer
40 views

Simplest way to achieve single IP communication with IP camera and simple MCU?

I have a product that uses an IP camera and a simple ATmega-based motherboard for general I/O control, managing a very simple web interface, etc. Ideally, I would like to be able to access both of ...
0
votes
2answers
25 views

Speed comparison between agregated and non agregated internet

I have an offer for internet connection, where they offer me these speeds for a symetric and non aggregated connections over fiber optics (upload/download): 10/10 Mbit/s 20/20 Mbit/s 30/30 Mbit/s ...
0
votes
2answers
40 views

ICMP is a protocol working in the Network Layer. Why does it send few fields of the transport layer while reporting an error?

I was confused if ICMP is a network layer protocol why does it send transport layer fields in its error reporting messages.
0
votes
1answer
18 views

Why can I forward email without mx record set up properly? [closed]

Say I have a domain domain.com I do not set anything on mx record in domain.com Yet I can set a forwarder from say hello@domain.com to another email. I set a address. Is this normal?
0
votes
1answer
137 views

What environment is still using the Token Ring network?

I have struggled to find what kind of environment (Eg: Educational, Medical environment, etc) where the Token Ring network is still used in this present time and why are they still being used. It is ...
0
votes
2answers
26 views

How could I build a Inner-Net of multiple networks?

I have multiple theoretical(not at the time being) WiFi Networks with one on each property(3 properties) and I want to have the three networks connected similarly to the internet. For example, I would ...
1
vote
1answer
651 views

Cisco anyconnect VPN router specific public IP via tunnel

I have fully functional cisco Anyconnect VPN running on Cisco ASA5585-X and today i got requirement that there are some remote public sites we need to whitelist our VPN public IP to access them over ...
1
vote
0answers
35 views

How can one detect TLS inspection as a user with an enterprise managed device? [closed]

Let's assume Alice is an employee of the Company Chuck. Alice likes to communicate with Bob, a server somewhere in the internet. Chuck being a security orientated company, inspects all TLS connections ...
0
votes
1answer
37 views

RIP always add same network adress

From network 10.10.0.0/23 i made 10 subnetworks. But when i try to add any network address to RIP it always add 10.0.0.0. Router configuration: Router(config-router)#router rip Router(config-...

1 2
3
4 5
13