Questions tagged [network-access]

One of the three layers of network design. The main characteristics of the network access layer is that it provides the access point for devices connecting to the network at a reduced "cost-per-port".

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L2 network design questions

Good afternoon everyone. I would like to know the textbook answer to a network I've been asked to assist with. I have an IT cupboard which serves the location as the MDF. I then have a variety of ...
eto.ttnflt's user avatar
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Can't connect to FTP [closed]

I am using Beetel 777VR1 with Airtel Broadband. I am trying to connect with a FTP server but I am not able to access that. However with same credentials when I try to connect with my mobile ...
Manoj Sethi's user avatar
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Can a fortigate firewall know which device tried to access its restricted url?

In my network, a specific url is being blocked by fortiguard firewall. Now I want to know which all devices had tried to access that blocked url. I traced the mac address inside the packet. But how ...
abby rj's user avatar
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What is a "routable" IP? [closed]

Short bg: I wanted to host a website on my laptop (192.168.0.102) via apache server. I set up port 8080 and forwarded the port that I was able to access it via 192.168.0.102:8080. Then there was a ...
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3 votes
2 answers
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Mobile IP in a large-ish IPv4 network

So we are looking into implementing IP mobility in our network. The use case would be for a laptop to be able to roam between wired and wireless mode of operation while retaining all TCP/UDP based ...
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How to force users to authenticate to get IP adress from DHCP?

Can You help me !! I want to force users to authentificate to get IP from DHCP-server (win server) if not they can't get ip @ adress !! even they are connected to network
Ridae HAMDANI's user avatar
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If multiple PC's are communicating to a server via a router, is the individual PC network traffic isolated to the respective PC's network?

I currently have multiple servers which are all on their own separate networks (each server on a different network talking to other devices). I want to implement a common central data server which ...
AtLeastITried's user avatar
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2 answers
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Isolating a workstation on a network for remote access by contractors

Is it possible to isolate a computer on a network such that it can be accessed remotely by contractors, but not have access to any of the other machines on the network in any way? I understand it ...
Slbox's user avatar
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802.1x authentication and dynamic VLAN assignment of VLAN tagged frames

I want to implement a Network Access Control ( NAC ) infrastructure in my LAN. My topology is something like: PC -> ( Untagged Port - PVID 100 - Non 802.1x capable smart switch ) -> ( Hybrid port - ...
Manuel Lapeyre's user avatar
1 vote
1 answer
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Cisco Prevent Access to VLANS but Allow Some Machines by MAC

I am having issues with a Cisco 1921 when it comes to access lists and vlans. I have my vlan configured and interface with IP as well as the access group assigned to the vlan interface. interface ...
John's user avatar
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How to connect 2 routers through the internet? [closed]

I have 2 branches and I would like to connect them together through the internet they are in 2 different cities so how this work and what protocols should I use?
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Cisco ASA VPN disconnecting regularly random time

We have Cisco ASA VPN IPSec with Sonicwall but we are seeing randomly after 8 hours or sometime 10 hours. I am unable to trace issue so just wonder is there a simple setting to renegotiate tunnel ...
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Same Wifi network but different speed on two computers? [closed]

I just installed a new Wifi and was testing the speeds on my computers, a Mac Book Air and a PC. Surprisingly, the Mac gives me a much higher speed in seedtest.net! How can this be possible?
xcoder's user avatar
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Can anyone read this network diagram? [closed]

Can anyone read this network diagram? I understand what a VLAN is. The information provided for the diagram is listed below. "To demonstrate a real-world model of how you might use VLANs, I created ...
user30332's user avatar
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Can't access my PC using external IP [closed]

I am currently in a setup where I connect to the internet using wired internet. I directly plug in an ethernet wire from the ISP. They have provided me an internal LAN IP address which in turn is ...
Neel's user avatar
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Connect between two branches [closed]

Hope anyone help me to inform me how can connect between two branches & what the technology use it and what devices need to pay on this project? ? Sincerely,
Network_infrastructure's user avatar
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ip addresses not meeting the IP addressing requirements of our company's network [closed]

Here is the situation: In my company we only use static IP addresses, the address of the router interface on which every machine is connected is 192.168.0.1/16.Our router support the DPI (Deep Packet ...
Andriniaina Andy Nkili Meyong's user avatar
2 votes
1 answer
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pfSense join 2 networks

I've got 2 pfsense boxes taking care of separate networks, with separate gateways. We've managed to drop a cable between the 2 networks so would now like to join the 2 networks so machines on each ...
MouseBat's user avatar
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Does one need to personally manage MLPS VPN connection to have MPLS between building or can the ISP provide this connection for you?

There are 3 buildings (IT system) that need to be links together but the distance between them are very far apart (min between 230 - 470 km). How do one manage to provide connection between all of ...
Jeremy Lan's user avatar
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1 answer
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WebEx Bypass HTTPS Scanning on a Sophos UTM

I'm running Sophos UTM 9 with decrypt and scan HTTPS traffic enabled. WebEx works fine when I turn off SSL Scanning for a machine, but I'm having trouble find all the URLs that WebEx uses; so that I ...
Richard's user avatar
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How to test outoing traffic on random ports? (on OS X) [closed]

In some situations or on some locations, I'm struggling with restricted outgoing traffic. For example a restricted LAN where outgoing traffic is only allowed on limited ports. I know how to check or ...
RocketNuts's user avatar
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Route discovery between master slave and slave slave [closed]

I have a master node and different slave nodes. I want to perform traceroute from each slave to every other slave and master and send this route to master periodically with timestamp. Bruteforce ...
user2823667's user avatar
1 vote
2 answers
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Unidirectional Subnet Communication

Let me first begin by saying I've looked around, and I haven't found a question asked that pertains to this situation exactly. Essentially my question is this: Is it possible to allow subnet S1to ...
PorkchopDonut's user avatar
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How to trap message between two servers? [closed]

I have two server one of them sends message in xml format to another server. The number of message varies i.e from 10000/sec to 1 million per second. The other end receives and stores it as file. Both ...
kinkajou's user avatar
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2 votes
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VLans Cisco Packet tracer

I have two vlans configured through a multilayer switch and one router with DHCP service. I configured trunk and access ports as shown in the image below. I need to block traffic between vlan's. ....
Liliana Loaiza Pulgarín's user avatar
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2 answers
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Providing remote sites with Internet and Intranet using main office's resources

I'm quite uncertain how the diagram would look like for this scenario so I can't really attach one. Scenario: This is a lab setup so I am free to change almost anything. I have a remote site that ...
cindy's user avatar
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1 answer
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Throughput of Aloha

The equation for the throughput of Aloha is S = Ge-2G Which can be thought of as G (the rate of transmission attempts) multiplied by e-2G (the probability of one of those attempts being successful). ...
alib_15's user avatar
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Are ip:subnet combinations in ACLs different than everywhere else?

We're trying to debug a connection issue, and I can't find any solid documentation one way or the other. I'm not positive of the hardware we're using, but we can assume Cisco for now, as I doubt there'...
ctote's user avatar
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2 answers
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Converting network data to sound, and streaming around 500M using RF (walkie-talkie style). How possible is it?

I'm not sure if this should go here or on one of the electronics pages, please advise me if this is misplaced. I work at a local hardware store, and I along with the other staff all agree that an ...
James Stuart's user avatar
3 votes
1 answer
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I am trying to configure DHCP to assign IP Address from other network!

Let us say there are two Networks: A (10.100.90.0) and B(192.168.1.0). Network A has a DHCP server. We know that when multiple devices are connected to network A, the devices get the IP address from ...
Vineeth Penugonda's user avatar
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Data downloaded while upgrading to Windows 10? [closed]

Here is case: I have many PC's/Laptops which has windows 7 or windows 8. I wanted to upgrade all of those machines to Windows 10. All we have is wireless connectivity. No ethernet cables are used for ...
Vinnie's user avatar
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2 votes
3 answers
278 views

How to create a network with many access points or repeaters and guest access

I have an existing simple network with internet connectivity. We have four access points that do not offer true guest access. We would like to have four access points that offer wireless for the ...
Noobie's user avatar
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2 votes
1 answer
678 views

Using router as remote door to gain access to LAN network

What I want is that only certain devices get remote access to my network. I want to achieve this by using MAC address. Configuring this in my main router is not an option because it's too much work ...
John's user avatar
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2 votes
2 answers
206 views

Spoofing the L2/L3 information and replication across L2

Could I have a server that spoof the same IP/MAC address of my server on the same L2 network that: 1 - does not do any conflict on the network. 2 - And on the same time when capturing packets on my ...
Anwar Ahdab's user avatar
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1 answer
81 views

Separate network connection With One NIC [closed]

I am currently planning a lab setup for an academic situation. We have host pc's that students use and we wish them to both have access to the internet and networking kit in the lab. The university ...
ggjono's user avatar
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1 vote
2 answers
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CISCO ASA5512-X no Console Output

Situation: We bought new ASA5512-X. It worked everything okay. I had access over SSH on the ManagementPort which was directly connected to my PC. Then I realised there is a configuration already on ...
SystemCookie's user avatar
2 votes
1 answer
204 views

Estimating latency via distance and betweenness

I want to compute the relationship between delay (latency) with distance and betweenness. More specifically, if I know (let's assume) that the distance and betweenness values for two different ...
Eray Balkanli's user avatar
3 votes
2 answers
1k views

OSPF can't ping other network segments

I'm trying to setup a very simple OSPF network with Vyatta. From the best of my knowledge they let all traffic in by default, and I haven't set any firewall rules. The vyatta instances are launched as ...
Muff's user avatar
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1 vote
2 answers
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Multiple devices connected over Gigabit switch but no internet access? [closed]

I've just moved into a new shared office and bought a Gigabit switch to add ethernet sockets to the network, in addition to having WiFi access from a shared wireless access point. I've connected all ...
Joel Murphy's user avatar
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1 answer
60 views

what command line linux show computers that is connected to a modem? [closed]

Suppose that I connected to internet -- from ADSL modem or wireless -- is a command line for linux for PC not server or cisco switch that I can detect my partner (we have a modem 4 port LAN example) ...
stackprogramer's user avatar
0 votes
2 answers
1k views

What is your experience with Ruckus/Aruba W-Ffi products?

Our company uses Pakedge and Luxul switch/router/Wi-Fi equipment. I see in a lot of the threads on Stack Exchange that Pakedge and Luxul are rarely or never mentioned, (Network Engineering, Super ...
allegory's user avatar
1 vote
1 answer
546 views

Ask users to register to gain access to Wi-Fi

I have been scratching my head on how this can be accomplished, we all know that almost all routers have a function for "private" Wi-Fi and a guest Wi-Fi access, the guest Wi-Fi on your router can ...
Tanker's user avatar
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1 vote
1 answer
117 views

Debian - default gateway per ip or interface [closed]

Got 4 network interfaces... Fiber 300mbps (only for internal communication between servers) GSM Modem (PPP, wvDial, GSM Network #1) Other GSM Modem (PPP, wvDial, GSM Network #2) Yet another GSM Modem ...
Flash Thunder's user avatar
1 vote
1 answer
1k views

How does telnet work? [closed]

I used telnet all the time to confirm ports are open and troubleshoot firewall issues, but how does it work? I thought that there is typically 1 service listening on 1 port (e.g., http listening on ...
jay-charles's user avatar
0 votes
2 answers
75 views

I need some recommendation about Hotspots wifi business [closed]

I need some recommendation about Hotspots wifi business. I'm planning to start Internet Hotspot wifi business sealing internet cards. But before I make my first step I want to know the right ...
Jack-john's user avatar
2 votes
1 answer
5k views

Printer on wired LAN not accessible from wifi in a differnet subnet

My network diagram is as follows: The printer on the 2-network responds to pings from the 3-wifi-network for sometime and then just drops out for some reason i can’t figure out. I have policies on ...
allwynmasc's user avatar
1 vote
1 answer
109 views

are RTS/CTS packets channel dependent?

RTS and CTS packets in IEEE 802.11 are for dealing with hidden node problem. If I enable this feature on channel 1, would other nodes in other channels(e.g 2) receive and respect RTS/CTS packets?
shidsun's user avatar
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0 votes
2 answers
959 views

WAN IP in 192.168 range

hoping someone can help. I am visiting family in Majorca and they have bought some cctv cameras that they would like set up so they can view the cams when back in the UK. The problem I am running ...
dave's user avatar
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3 votes
1 answer
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Port forwarding doesn't work

I'm using an EdgeMAX router. From the GUI, I'm trying to forward the WAN (eth1) port 22 to the LAN (eth2) port 22 to a local IP address (172.16.12.3) to allow SSH from outside my network. When I tried ...
Andriniaina Andy Nkili Meyong's user avatar
2 votes
2 answers
3k views

Access point triggering BPDU guard on sg500

ok so i have this port configure as an access port for vlan 10. I connected a cisco wireless access WAP321 configure to send untagged traffic to expand this vlan for wireless access. I have two of ...
Luis Coy's user avatar