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5 views

Help with VLANs on Meraki MX

I have a Meraki MX84 in Routed mode with a Default 10.10.0.0/24 subnet and then VLAN 10.10.3.0/24 ID 3, VLAN 10.10.4.0/24 ID 4, VLAN 10.10.5.0/24 ID 5, and 10.10.8.0/24 with ID 8. All ports on it are ...
-1
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0answers
13 views

Windows' WiFi scanner that shows WiFi networks and signals plus occupancy of each frequency [on hold]

I have reviewed many WiFi analyzers/scanners but all of them provide only basic stuff like amount of networks and their signal strength for each channel. That information alone is insufficient in very ...
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0answers
10 views

Issue with communicating between separate networks [on hold]

Okay, so this is a bit of a complicated situation. I'm a Software Engineer at a company where they have our dev VMs on a network that is isolated from our enterprise network where our windows machines ...
0
votes
1answer
21 views

How does VTP deal with revision conflict

I was wondering how VTP protocol deals with revision conflict? E.g. VTP clients and servers are up to date with the latest database revision X. Suddenly two VTP servers propagate revision X+1 with ...
-1
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0answers
13 views

How to Setup 4G LTE Router With External Directional Antenna? [on hold]

I know the basics, I know that I need to get a 4G directional antenna(with range up to 2.7 GHz), and also buy a modem that will receive the antenna's signal via a coaxial cable, and that modem has to ...
0
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0answers
10 views

Recommending an email spam solution [on hold]

I've been having a lot of issues with staff recently and need to identify a solution that is not cost prohibitive and easy to use - while also being user friendly. Not an easy ask I know but I'd be ...
0
votes
1answer
28 views

DHCP options field [on hold]

I have a problem understanding the description of the Pad-Option field of DHCP in RFC 1533: 3.1. Pad Option The pad option can be used to cause subsequent fields to align on word boundaries. ...
0
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0answers
16 views

I don't understand how the proxy is setup [on hold]

I work behind a corporate proxy and am currently facing a strange issue. I believe it's more to do with my lack of understanding the system than the issue itself. All internet access is going through ...
0
votes
2answers
28 views

Fiber connection between a switch and a media converter

I'm trying to connect 2 buildings with a MMF (OM2). Here's my setup: Media converter side: MC: https://www.fs.com/products/17237.html SFP: https://www.fs.com/products/29838.html Switch side: SFP ...
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0answers
17 views

Cisco Meraki Product line

Cisco Meraki devices automatically connect to the Cisco Meraki cloud over SSL, register with your network, and download their configuration. The concern is what sort of configuration does it download ?...
0
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0answers
18 views

MGUARD natting two subnets

I have two subnets: A: 192.168.1.0/24 and B: 10.1.0.0/16 With MGUARD GT/GT I would like to perform static NAT to have possibility to manage some devices inside of "A" subnet from "B" subnet. ...
1
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0answers
31 views

Trying to understand how SSH works [on hold]

Hi I have a network diagram as shown in here both Router0 and Access Point0 have DHCP servers on It I am thinking about How to open SSH to my Access Point0 from Server0 , Only IP address I could get ...
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0answers
17 views

How do I start a project on Opportunistic Network? [on hold]

Provided I have basic ideas on general computer networking.From where to start and what are the required prerequisite knowledge? A well defined roadmap would be appreciated.
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0answers
16 views

When turned on, LEDs panel in an UPS uses which power at first? [on hold]

I've been given a UPS (Makelsan ups 800av) and intend to use it for networks backup power supply. There is a question I wonder all then. Googling couldn't help it. I just want to be know whether LEDs ...
1
vote
1answer
25 views

Understanding MP-BGP IPv4 AFI

I was writing my own BGP speaker, and I am a bit confused by the IPv4 AFI of MP-BGP. I understand that to exchange IPv6 routing information peers need to agree on it by sending the MP-BGP capability ...
0
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0answers
13 views

What are the topologies used for distributed systems? [on hold]

What are the topologies used for distributed systems? Are they, : Bus-Based Networks, Crossbar Networks, Multi-stage interconnection networks, Completely-Connected Network, Star-Connected ...
0
votes
2answers
39 views

Can't get to the Internet from VLAN on switch

I'm trying to setup a network lab to learn more about networking. Equipment: 2 procurve switches. 1 Sonicwall firewall TZ300 The final outline: traffic from Vlan 10 on switch 1(port1) goes to ...
0
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0answers
13 views

Block a host MAC address on switch using ACL [on hold]

I'm network administrator in an organization. I want to block a mobile phone on network which is connected to TP-Link Wifi router. Wifi router is connected to D-link access switch and Access switch is ...
0
votes
1answer
50 views

Scaling fragment offset

I studied that fragment offset has 13 bits. At transport layer segmentation is done considering the the MTU at lower layers (network layer, data link layer). Ethernet format says the maximum data ...
0
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0answers
19 views

Need help reading a Wireshark Trace to Troubleshoot an App's Performance Issue

My company uses a program called Pro Watch that we using for creating employee badges. This program talks to a SQL database that stores everything. When trying to search for a person's name in the ...
0
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0answers
7 views

Redirect traffic of a mirrored port to a Vitual Machine [on hold]

I have I question, I need to analyse the network traffic captured by the mirrored port of a switch on a Virtual Machine. I would like to know what are the steps, on a high level, to follow to achieve ...
0
votes
2answers
35 views

How router ports allocation doesn't drain

Let's take a classic example. My computer sends a GET request to stackexchange.com. Here's how I understand the procedure: For sending this request, my computer allocates a temporary port for this ...
0
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0answers
12 views

OSx devices not sending DHCP request after receiving offer [on hold]

So I have two OSX devices which are both getting a 169.254.0.0 address on a VLAN. I have tested the same ethernet ports with a Windows laptop and that is getting a proper 192.168.12.x address. The ...
0
votes
1answer
21 views

Can't connect to network printer while other's in the building can [on hold]

I'm unable to connect to the shared printer in our business center. Every unit is on the same wired internet. The instructions state that I should do Run->\10.10.41.11 but then Windows says it couldn'...
0
votes
2answers
28 views

Fortigate's specs meaning

I am reading through the Fortigate's documentation to look for a device to replace the current device of my office(Draytek). Is that true that I should depend on the Firewall throughput to choose the ...
0
votes
0answers
37 views

How to setup dual WAN & two LAN Networks correctly? [on hold]

We've just been switched from ISDN to SIP. Since the guy who installed and configured the phone system does not have a lot of experience in setting up LAN networks, we need to do it ourselves. My ...
0
votes
1answer
27 views

Juniper Ex4200 problem with assign firewall to access port

This is my firewall filter rules : family ethernet-switching { filter port5 { term port5 { from { source-address { 192.168.1.0/29; ...
0
votes
0answers
13 views

Which routers do support 802.1x supplicant mode for wired connections? [on hold]

My home network is behind an Ethernet connection that requires 802.1x authentication (PEAP, MSCHAPv2, username-password). The connection provided by the authorities through a Aruba 303H access point ...
0
votes
2answers
76 views

How to connect four networks with overlapping addresses?

We have four networks for four departments: R&D, Sales, admin and finance. All IP addressing is from the 192.168.1.0/24 network. So, maybe four PCs have same IP address, e.g. 192.168.1.8. Now, we ...
0
votes
1answer
48 views

CDP neighbor discovery

I faced an interesting problem. So, I have Cisco WS-C2960-48TT-L connected with HP Procurve 2626 and Aruba 2930F switches. when I type "show CDP neighbours" command on the cisco switch I see nothing, ...
0
votes
0answers
11 views

Capturing multicast packets in WLAN [on hold]

If a device in monitoring mode snoops on the traffic in a WLAN, can it CAPTURE and READ multicast packets? For instance, if a device broadcasting packets to multicast address 239.255.255.250, can a ...
1
vote
0answers
25 views

Why is bgp used for AWS and gcp VPNs and not another routing protocol? [on hold]

I use AWS and gcp. Both of these cloud platforms have the ability to establish a VPN connection from a VPC in the cloud to an on-premise router or another cloud VPN endpoint. They both use bgp ( and ...
0
votes
0answers
11 views

Internet connection randomly disconnect [on hold]

We have one Tp Link Wifi modem which connected to rack switch as you can see blow: The modem information: so our connection to internet lost randomly one two or three times every day, for example ...
4
votes
1answer
271 views

TCP connections hang during handshake [on hold]

For the last few days, connections originating behind my LAN's NAT have been having issues completing the TCP handshake (i.e. web pages only load after hitting F5 a few times, network applications ...
0
votes
0answers
12 views

IP Configuration [on hold]

hello network geeks, I need to configure these IPs in my network. i have one customer IP from ISP and 8 extra IPs (6 usable) as well. My core requirement is to configure these IPs in my server to ...
0
votes
1answer
20 views

bgp filtering based on conjunction of prefix-list and as-path originator

Is there any way of having a filter that uses as-path origin and prefix-list together. For example I want to accept updates from origin of AS 5745 and prefix-list is say 189.150.20.X/24. Any other ...
0
votes
0answers
18 views

How to add firewell exception followed by routing [on hold]

Reference to above diagram, There are two things that I want to do Access PC-4 from internal network (PC-1 to PC-3) Access internal network (PC-1 to PC-3) from PC-4 First one should be easy since if ...
0
votes
2answers
47 views

Can you stack Cisco 350 28P PoE switches with CAT5E or CAT6 ethernet cables?

I have four new Cisco SG 350 28P PoE switches, but no stacking cables. Can I use CAT5E or CAT6 ethernet cables to accomplish stacking them?
0
votes
0answers
19 views

ASA Configuration Issues Unsure If It's Related To NAT, Routing, or ACLs [on hold]

ASA Configuration Issues Good Day, I am having issues with my ASA configuration and have thus far been unlucky in determining a solution. I have a bunch of hosts in a DMZ and a couple of client nets ...
0
votes
0answers
5 views

How common are symmetric NATs/feasibility of not using a TURN server [on hold]

I'm building a realtime multiplayer game where players transmit their data using UDP to peers in a game session. My understanding is that traversing a symmetric NAT is impossible without using a TURN ...
0
votes
1answer
25 views

How do you define interesting traffic using an IPSec Profile on a Cisco router?

I apologize if this is a duplicate, but I'm having difficulty figuring out how to define interesting traffic on a Cisco router using an IPSec Profile referenced by a tunnel interface. The old-school ...
0
votes
0answers
16 views

Home Ethernet network problem [on hold]

I have an ethernet set up at a large older house being set up as offices in the west of Ireland with two comm cabinets. The first has two 24 port switches (gigabit); daisy chained to each other with ...
0
votes
1answer
24 views

What is the use of route-target without export/import?

On my router, I can configure the following: I canont find any information regarding the use of the "route-target ASN:nn" command. I know what route-target import/export allows me to do, but what use ...
-1
votes
2answers
51 views

2 subnets no VLAN [on hold]

Say I want to allow two subnets 10.10.0.0/24 and 10.10.8.0/24 talk to each other on the same network without using VLANs, what do I need to do? A layer 3 switch? How would I configure it?
0
votes
1answer
59 views

Is this translation possible on a router, or do I need a proxy?

Is this possible, I cannot seem to find a solution for it.. Using NAT,I have this config (this is on packet tracer) interface GigabitEthernet0/0/0 ip address 10.1.1.1 255.255.255.0 ip nat inside ...
0
votes
0answers
11 views

SSH to access point which runs on OpenWrt? [on hold]

I have a AP runs on OpenWrt( the router firmware ), AP connects to DHCP server and DHCP server connects to ISP I have server on cloud (node.js server )so basically I need to execute shell commands ...
0
votes
2answers
89 views

Different MAC addresses [on hold]

What happens if a host on the network receives an IP packet with a MAC source address that differs from the MAC address in the local ARP table for that source IP. The ARP table entry for that IP was ...
0
votes
1answer
43 views

Setup VPN to access company's internal network without NAT

Below is how the network looks like, the left is my home, and the right is my office. Now I want to connect to office intranet(192.168.0.0/24, R3). We don't have any vpn device that directly connects ...
0
votes
2answers
23 views

Mac address table ,packet tracer

I connected two pcs to a switch in packet tracer , no ip addresses at all.and on switch cli I put a show mac address-table command,why there is nothing shown in the table?how does the switch so learn ...
0
votes
1answer
25 views

Range of SSDP messages [on hold]

I am reading about SSDP from here and here. I understand that its purpose is to advertise and discover network services. My question: Is the broadcast range of a SSDP packet local (e.g.: in a WLAN) ...

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