All Questions

0
votes
1answer
5 views

Is this computer a threat? On same network range, but in a workgroup

We have a normal on-premise Class C network with an internal IP address scheme of 192.168.15.x (hypothetical). We have a SonicWALL device that acts as a VPN server for external clients, a DHCP server ...
0
votes
0answers
15 views

Confused in the concept of subnetting [duplicate]

I am doing sub netting and want to confirm that if my method is correct or not. Suppose we are to design a network that has 2 departments. Department 1 has 32 number of hosts and department 2 has 64 ...
0
votes
0answers
12 views

Subnetting related questions [on hold]

Coming up next week i have an examination on Networks.Having said that,crossing past papers i came upon this exercise(Picture).Most of the questions iv solved do not have this format so im kinda ...
0
votes
0answers
9 views

MPLS monitoring [on hold]

the question is that there is a network using Cisco, HPE, Mikrotik devices with MPLS L3VPN backbone (OSPF, LDP, MBGP). I can not understand how to monitor LSP paths, as well as client VPNs (to ...
0
votes
1answer
27 views

Cisco nexus 9396PX TX output discard on 40G interface without link congestion

We have cisco nexus 9396PX with N9K-M12PQ module (12x40G Interface), We have 8x10G L3 LACP bonded connectivity with our ISP and so far so good no issue at all. but recently we migrated that LACP LAg ...
0
votes
0answers
15 views

why the DOWNLOAD speed is 124 mbps, but the upload only 19.83 mbps? [on hold]

I have a server in Los Angeles, when I use speedtest for testing the network speed. you see the DOWNLOAD is 124.07 Mbps, the UPLOAD is 19.83 Mbps. so, I have two questions: 1. the DOWNLOAD is Server ...
5
votes
1answer
420 views

Cisco 3750X Power Cable

I received a Cisco 3750X the other day. I went to go plug it in for testing and found that the standard three prong female power connector is no longer compatible with the power supply. Cisco has ...
0
votes
1answer
33 views

Why my ACL doesn't block the ping of the gateway but filters correctly everything else?

I am using a router/switch Cisco C1111-8p with IOS XE 16.8. I have 3 VLANs: 1: native/management 20: dev 50: Guests I'd like to block Guests/VLAN50 to communicate with anybody else but Internet. ...
0
votes
0answers
13 views

Shadowsocks speed vs VPN speed [on hold]

I've been looking at Outline and the underlying technology, ShadowSocks From what I understand, ShadowSocks is a Socks5 proxy with encryption built in. Usually VPNs tend to be slower than Socks ...
0
votes
3answers
29 views

What's the technology of bind MAC address with IP address, for solving iP conflict issue?

What's the technology of bind MAC address with IP address? I have a problem with the LAN, such as in my LAN, there are 192.168.100.0/24, gateway is 192.168.100.254/24. user A's IP is 192.168.100.1/...
0
votes
0answers
26 views

Default gateway query/Confusion [on hold]

I have VMware workstation 15.X and set up the following networks set up via the network editor: VMware workstations on a Vmware Network (Vmnet). The ip subnet of 10.3.3.0. VMware workstations on a ...
0
votes
2answers
29 views

Connection between two networks with different IPs and identical subnets?

How can we establish communication between two networks with different IPs but same Subnets? Network Connection 1: (Factory Network for machinery) I.P = 192.168.19.X S.N = 255.255.255.0 G.W = 0.0.0.0 ...
0
votes
0answers
17 views

How do I calculate the likelihood of a network partition if nodes connect randomly? [on hold]

In a decentralized network, if each node connects to N random nodes, there is some likelihood that this will create multiple networks rather than a single network graph. How do I calculate that ...
0
votes
1answer
26 views

Multi Area OSPF configuration in cisco packet tracer

I am a bit confuse in the concept of multi area ospf. I posted 2 days ago. And I was asked to leave the one interfaces of each router out of the circle. Now the center circle is area 0. The top circle ...
0
votes
0answers
12 views

Benefits of encapsulation? [on hold]

Some benefits for encapsulation can include: data can share network links since chunk of data is identified individually, data can be flexibily routed over different routes, encapsulation allows ...
0
votes
0answers
7 views

Hook second router to internet wirelessly? [on hold]

I have a router hooked up to a modem, and I have another router. What I want to do, is have the router broadcast a completely different network than my other router, but still have my second router ...
0
votes
0answers
9 views

How can I add a storage device to my router? [on hold]

How can I add a storage device such as pendrive to my router , which can be accessed by all device connected to the lan network (router) ?? NB : low cost is a must 😁 TIA
1
vote
1answer
224 views

TCP Three Way Handshake?

I have the following query about the tcp handshake. To establish a connection the server must send a packet with SYN flag to 1 Then the server replies with a SYN,ACK flag to 1 , and afterwards the ...
0
votes
0answers
17 views

How to do IP masquerading on MacOS (10.14+)? [on hold]

I am looking for the equivalent Macos command to the linux: sudo iptables -t nat -A POSTROUTING -o en0 -j MASQUERADE The reason i want to do this is I have a VPN that has the default route, but i ...
0
votes
0answers
11 views

Ftp uploads are slow on windows, not macos or Linux [on hold]

Our church only has dsl avaliable to the area, so we currently have 8 runs of 25up 5down dsl from telus bonded by skyway west. It works decently all except for one thing our ftp uploads are very slow ...
0
votes
0answers
19 views

Huawei APs on Alcatel switches? [on hold]

I work in Serena Hotel. Here we have a Core switch 9700 on which Huawei Access Controller is connected on Port 2/17. Then we have 2 distribution layer switches 6850 connected on Core switch Port 1/1(...
0
votes
0answers
10 views

Problem with Sharing a 4G Network using multiple Access Points [on hold]

I have a really interesting problem in my home network currently. Due to DSL speed limitations of our ISP in my area, I upgraded to 4G network with roughly 3x the speed I get from my previous DSL ...
-1
votes
0answers
16 views

Splitting into 4 subnets [duplicate]

I am trying to attempt a past exam question. The question is as follows, Consider a router that interconnects four subnets: Subnet 1, Subnet 2, Subnet 3 and Subnet 4. Suppose all of the interfaces ...
0
votes
1answer
24 views

What happens if we try to access an IP Address that does no exist

Beginner Question: I just read an article talking about how the internet works and how routers make sure that packets arrive at the destination. However there is one thing that is not explained ...
0
votes
0answers
8 views

Multiple DHCP servers detected by access points [on hold]

I’m having an issue with our internal network and voip network. I currently have it setup as a non-converged network separating our two data switches and one voip switch. We preferred not having our ...
0
votes
0answers
12 views

Is pair cable always full duplex? Can it be half duplex at double the bitrate? [duplicate]

This is probably a newb question, forgive me. For pair cable, there are two signals that can be sent: following that logic, it seems like you could have two situations: full duplex at bit rate X in ...
0
votes
0answers
9 views

How to PORT forward through a VPN? [on hold]

I'm connecting to my client's PC through a VPN that put me inside his network and then through RDP (Remote Desktop Protocol) using the Windows client. Everything works well but I need to have access ...
0
votes
2answers
37 views

How to give one pc with dhcp a default-gateway while the rest use static ip and static default-gateway

I have this topology where the PC0, Server0 and PC4 use static ip and static default-gateway, but one pc is Request DHCP, so i have to use DHCP ip address for him and static ip for the rest, now the ...
1
vote
1answer
27 views

Suppress CLI terminal output on IOS

I would like to know if we can suppress certain lines from being displayed on the CLI. Example: I call following TCL script, that in itself calls some other scripts. What i Get on the screen is this: ...
0
votes
1answer
38 views

Giving different OSPF areas to a router

In the topology shown above each circle represent an area. Now I want to configure multi area OSPF on each router. So for the first router can I do like this: router ospf 109 network 192.168.11.0 0.0....
0
votes
1answer
19 views

How should DHCP servers respond to subsequent requests from same MAC address? [on hold]

I'm handling a wireless router device (Asus RT-AC66U) that advertises a so-called Repeater Mode. This mode allegedly picks up an existing WiFi signal and repeats it, while it disables DHCP and NAT ...
0
votes
0answers
21 views

Is this setup possible. Multipler user PC's & KVM. 1 Shared PC - Switch [on hold]

I'm not in an IT role or an engineer. In fact i'm usually just on the coding, excel & share point site. However I do have a requirement that i want to check is possible as it seems to have been ...
0
votes
1answer
27 views

What does multi area OSPF mean?

Does this mean that all the routers in a given topology should have different values of area or just one i.e. area 0?
0
votes
0answers
8 views

3G EA CLICK board doesn't respond to at commands anymore [on hold]

I am sending AT commands to a 3G EA CLICK cape(which has a Quectel UG95 chip). The problem is that the cape doesn't return anything. I have the cape connected to the PC through a USB-to-UART converter(...
2
votes
1answer
57 views

Setting Destination MAC address for RTP/UDP packets

I have a requirement where I have to send the UDP packet to a destination multicast IPv6 address. In addition to that the packets must also have corresponding destination multicast MAC address set. I ...
-1
votes
0answers
8 views

OPENWRT - DDNS and DNS Filter [on hold]

Codes: package ddns option ip_source 'web' option ip_url 'https://myexternalip.com/raw' package dhcp list server '103.247.36.36' list server '103.247.37.37' DDNS Service - getting the current ...
1
vote
0answers
17 views

routing with multiple NICs (connected to multiple APs) that were all assigned the same LAN address [on hold]

I have 4 wireless APs based on the ESP8266. These APs all broadcast distinct SSIDs, but each serves LAN addresses in subnet 192.168.4.XXX. The subnet value is not configurable. Then, I have a Linux ...
-1
votes
0answers
10 views

Is it possible to simulate a cable modem connection? [on hold]

I am trying to setup a test network. I want to provide an equivalent to a cable modem connection without actually having a cable connection. The reason is I have a dd-wrt modified router I'm trying to ...
2
votes
1answer
16 views

Does the dot3StatsInternalMacReceiveErrors counter include Vlan mismatches

I am wondering if the dot3StatsInternalMacReceiveErrors counter includes VLAN mismatches, i.e. Discards due to VLAN mismatch. http://oid-info.com/get/1.3.6.1.2.1.10.7.2.1.16 only explicitly lists ...
-1
votes
0answers
20 views

How to use multiple power-lines on the same store [on hold]

I have a TP-Link ethernet only power-line that works like a charm. But my needs have changed and now I want to connect two more devices, one that will work as an access point in another room and one ...
-1
votes
0answers
16 views

IPFIX Flows from OVS Linux Bridge are not accurate [on hold]

I’m struggling to understand my IPFIX flow data. To explain: I have an Ubuntu (16.04.2 LTS Xenial Xerus) box, and within that box, I have a single Linux bridge: root@Ubuntu1:~# ovs-vsctl show ...
0
votes
1answer
21 views

Netgear M4300: Is it possible to enable multiple destination ports for mirroring?

I have a Netgear m4300 12x12f. Using the web Console I'm able to use one global port for mirroring traffic from other ports. Is there a way to have different ports mirroring different traffic? I'm ...
-1
votes
0answers
24 views

Diffrences in Latency on LAN [on hold]

I have some problems on our LAN with (guessing) latency. We have a monitoring system and we have one server that is connected to a SQL server. And we are monitoring a service and ping, so the ping ...
3
votes
1answer
31 views

Finding MAC address with OUI List

I'm in the process of labeling the interfaces of my Cisco 3750G with descriptions referencing the device type that is associated with that port. I understand that I am able to run a show mac address-...
-1
votes
1answer
22 views

Connect to the Same VPN with two different PC on the same Private Network [on hold]

From two different PC on the same private Network, is it possible to connect to the same VPN with the same credentials???
-1
votes
2answers
28 views

Why do we only factor in the transmission delay of one node in a two hop transmission? [on hold]

I'm trying to understand two hop transmission from my lecture notes. To get the total delay time for transferring data, the notes say that we only factor in the transmission delay of the host with ...
-1
votes
0answers
11 views

how to advertise k8s Cluster-IP range and POD network via OSPF to upstream router [on hold]

I can't use Kube-router or Calico CNIs which are doing this task using BGP since I already use MetalLB in the k8s that runs BGP instances on the nodes. I want to use OSPF here but the question is if ...
0
votes
2answers
42 views

Monitoring URL requests on foundation's LAN

We are having a internet cafe with guests walking in and out. We would like to keep an eye on browsing traffic on LAN 192.168.2.0/24, because we don't want guests to visit wrong websites. In such ...
-1
votes
0answers
13 views

Sonicwall Firewall block all my external Connection [on hold]

i am using the corporate network of the company, and Sonicwall Firewall block all external connections Https and Remote Desktop Connections. Internal is everything fine, but external is nothing ...
1
vote
0answers
18 views

Can QoS provide a benefit after data has gone through other unmanaged switches first? [duplicate]

Details about the devices We have a 24 port NETGEAR managed POE switch that has QoS capabilities. We have the following unmanaged switches, 24 port Cisco POE, 48 port Cisco, 48 port NETGEAR, and 24 ...

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