All Questions

0
votes
0answers
6 views

how to know who is controlling my wifi and devices from a local host

how to know who is controlling my wifi and devices from a local host, also I think my IP is being navigated to an alternate site when I try to view certain sites or it cuts the internet or says I dont ...
0
votes
0answers
6 views

How to meassure max bandwidth with Wireshark?

I'm trying to measure the max bandwidth usage of my LAN with Wireshark. I´ve done several packet captures but I don't know how to obtain the max bandwidth usage. Any Idea? Thank you in advance
0
votes
0answers
6 views

Stable connectivity in a high-density residential WiFi environment?

I live in a densely populated area and my devices see 10-20 wifi networks at any given time. Once in every few minutes a ping to my router goes up to the point of timeout and the device loses the ...
0
votes
0answers
9 views

vrf ping is not working in my case

Below are my Configurations: PE1 c t router ospf network 35.0.0.2 area 0.0.0.0 network 97.97.97.97 area 0.0.0.0 en c t mpls ldp router-id loopback 1 force entity 1 #max-hops 0 label distribution ...
0
votes
0answers
7 views

Remote Host Neighbor Cache Entry State after Neighbor Solicitation request

When a Host A sends for the first time a NS request to another Host B, host B answers with a NA. In Host A Neighbor Cache, the state Entry for host B gets from INCOMPLETE to REACHABLE, when NA comes ...
0
votes
0answers
10 views

Online Free Resources to do CCNA certification

Can Anyone Suggest Good resources to do Self Preparation Regarding CCNA Certification ?
0
votes
3answers
17 views

JunOS, access mode interface asks for a vlan

I'm kinda new to networking so I'm going to do my best to try explain my issue. The issue that I have is that I want to delete all default configuration for my xe interface. Current configuration: ...
3
votes
1answer
22 views

Configuring Cisco ASA DAP policies from CLI! (Automating bulk task)

So I have given a task to add 1000s of DAP policies after main DAP file crashed and backup is not available due to unfortunate reasons. There is predefined way of doing it through ASDM which is very ...
0
votes
0answers
17 views

DNS Not working after adding Loopback and editing /etc/sysctl.conf [on hold]

I am setting up a virtual infrastructure based on KVM and trying to setup virtual loadbalancers using Keepalived. I have successfully setup the loadbalancer but trying to setup a "real server" vm is ...
0
votes
1answer
43 views

Why the Ack number is bigger than the last Seq number?

Why the Ack number is bigger than the last Seq number? you see the Ack response for each two TCP packages. but there I have a question, you see the Ack response for Seq=19997, Seq=22893 and Seq=...
0
votes
0answers
20 views

How are modern networks in terms of bandwidth, traffic and so on? [on hold]

I want to simulate a network for doing my experiments so i need to know: A link from one transit AS to another transit AS, How much bandwidth and delay have? a link from one transit AS to a stub AS, ...
0
votes
1answer
51 views

Layer 2 and Layer 3 traffic with one cable

Hers the topology. L2 switch L3 switch Router There are 2 VLANs. One VLAN ends on the L3 switch 1 VLAN on the router. Here is the question. Can i connect the L3 switch and the router with just 1 ...
0
votes
0answers
19 views

Sniffing Wi-Fi probe requests using two antennas [on hold]

I would like to check the channel sweeping patterns bursts from a device. As I attached two enabled-monitor-mode wireless cards to one Raspberry pi, one of the cards (antennas) was set to channel 1 ...
0
votes
0answers
18 views

Connecting 2 Computers on Different Networks [on hold]

I have 2 computers that I need to communicate with each other. One is used with my printer and has a static IP address (PC2) and my main one is what I use to design and do everything else with (PC1). ...
0
votes
1answer
27 views

Assign a new public and static IP to a router behind my main router [on hold]

What can you suggest to bring a second public and static IPv4 so I can configure my WAN-A interfase with my primary and an additional secondary IP settings so I can route all the traffic from the ...
0
votes
2answers
38 views

Which physical layers are part of PROFINET?

I understand that Profinet builds on Ethernet, but I am not quite sure how. Ethernet has a lot of different standards for the physical layer, eg 10Base2 (coaxial, 10 Mbit/s), 100Base-TX (twisted ...
1
vote
2answers
27 views

How to configure snat between 2 private networks having different nat pools?

Hi, i'm having some problems with the current configuration i have on this network. I have two nat pools one for the blue square routers, and another for the yellow ones. And i'm using snat to have a ...
0
votes
1answer
20 views

Which path will frames prefer in this setup? [on hold]

So I recently installed a long rj45 cable to replace the powerline adapter I was using. I'm keeping the PLA in place as a failover but wanted to know if I will need to swap the connection by hand to ...
0
votes
2answers
69 views

Troubles wiring two network rooms with optical fiber and SFP-enabled switches

I'm in charge of the new network installation in the new office of my company, and I have troubles wiring two network rooms (one for servers and incoming internet and the other one for wiring closets) ...
0
votes
0answers
18 views

Works Ip dns Doesnt (I am network admin) [on hold]

So for my IP there is Reverse IP 213-81-69-69.hornaorava.sk I have port 21 running on the IP, so when I go to 213-81-69-69.hornaorava.sk:21 I should access like I do 213.81.69.69?
0
votes
2answers
37 views

Confusions regarding byte and bit ordering of Ethernet Frame

I understand the concept of Endianess regarding numbers because there the bit significance is well defined. But when applied to things like Ethernet frame or Mac address, things are so clear to me, ...
0
votes
0answers
19 views

factory reset without fail nvram

My problem is to reset the NVRAM without fail the flash memory. I try to recover password from NORTEL CORE SWITCH-8310 old model. I try to enter the monitor mode but I fail. PLZ suggest HOW to process ...
17
votes
2answers
5k views

What is “industrial ethernet”?

When a teacher introduced it to us he gave the impression that it specifically covers some Siemens technology; that it's even a Siemens trademark. I believe the term covers something more general, ...
0
votes
0answers
29 views

wired 802.1x and mac spoof [on hold]

I would like to make a Dos Attack based on EAPOL-Logoff frames on a 802.1x wired Network. My lab: One 802.1x switch One authenticated client with MAC "A" attached to port 1 One NOT-auth. client (...
0
votes
0answers
17 views

Fixing HTTP port forwarding issue [on hold]

Accedinatly I've port forwarded all of the HTTP requests to one of my private local IP address, and now am not able to open the router page, is there is any way to fix this was out hard resetting the ...
2
votes
0answers
37 views

Route Reflector not reflecting BGP-LU (Labelled Unicast) prefixes

I was reading about the Inter-AS MPLS VPN Option C from book ' MPLS in the SDN Era' . In it , the author establishes the BGP-LU peering between PEs and ASBRs and between RR and ASBR only.No BGP-LU ...
0
votes
0answers
14 views

MAC Err_Connection_Reset Error [on hold]

My friend was messing around with my network settings a couple of hours ago and now I can't access any site on any browser. When I try to on Google Chrome I get a " Err_Connection_Reset" message. I've ...
0
votes
0answers
27 views

Thousands of Random MAC Addresses in Wireshark WLAN packet capture (single channel) [on hold]

This could be my ignorance of what an unfiltered wireless packet capture should look like, or something else entirely. I ran a monitor-mode capture of 5Ghz WiFi (single channel, I missed noting the ...
-3
votes
0answers
15 views

Is there a way to change an unsecured WIFI hotspot into a secured one from remote? [on hold]

My housemate got a new internet service provider, but decided to leave the WIFI unsecured, which I strongly advised him not to do. Now I would like to secure the WIFI for him, but I also would like ...
0
votes
0answers
10 views

2 floor home, internet disconnection in the secondary router [on hold]

Model: Archer-C60 Hardware Version: V2 Firmware Version: 2.0.0 Build 20161206 rel.60287 Hi, I have a problem in my home, I have 2 floors, in the first floor I have the internet provider router which ...
0
votes
0answers
5 views

Home Host And Separate Networks [on hold]

Hello to the good people of Stack Exchange. Firstly, happy fathers day to those who are celebrating - I hope I am not taking up to much time in your day. I have a question regarding home hosting and ...
0
votes
0answers
17 views

Is it possible the IP delay high , but its gateway is normal? [on hold]

The gateway ping time in general is 70+ms, there is normal, but the IP under it is very high. I am pretty sure this is not the IP's server's issue, because there have many IPs in the AS ping is high,...
-1
votes
1answer
19 views

ccna: Collision domain vs broadcast domain [on hold]

I am currently preparing for CCNA I have a screenshot of CCNA online test. I don't remember if I got it right or not. I think there are 2 broadcast domain (circle with hand on the picture) and 5 ...
0
votes
1answer
49 views

Weird Wireshark protocol list (eth:ethertype:ip:data where is the “udp”?)

I am capturing incoming and outgoing WAN to LAN data at a particular host on my LAN (i.e., the one actually receiving/sending the data). Sometimes I get anomalous captured frames that are missing the ...
3
votes
1answer
58 views

How do ARP requests work

So I may have a stupid question that mainly comes from me getting weird results to say the least while experimenting. I'm a bit unsure how do ARP requests work. For example how can I arp my entire ...
0
votes
0answers
14 views

How to implement port security in SDN using pox controller and ovs?

How can I defend against DHCP starvation attacks or MAC spoofing in an SDN environment?
0
votes
1answer
29 views

RDP on IPV6 using DS-Lite-Tunnel [on hold]

I am trying to access one of my PCs from and external network using RDP on port 3389. After realizing my ISP uses DS-Lite-Tunnel I gave up ipv4 and focusing on ipv6. So far the only way I managed ...
0
votes
0answers
12 views

GNS3 Not working after upgrading ubuntu 19.04

I upgraded Ubuntu 18.04 to 19.04 and GNS3 stoped starting. in CMD this Message appears sudo gns3 Fail update installation: No module named 'sip' Can't import Qt modules: Qt and/or PyQt is probably ...
0
votes
0answers
15 views

QUESTION Router SPEEDS [on hold]

Good Morning Everyone I'd like to know if my Latency will Improve if I buy a Aftermarket Router, ISP provided me a Modem-Router but it seems that this modem-router is really low end I get bandwidth ...
1
vote
0answers
21 views

How can I disable TLS on my openvpn server? [on hold]

I am using PiVPN and set up an openvpn server. Myself and a coworker can connect to the vpn remotely with the generated .ovpn files we imported into openvpn clients. I tried creating a .p12 ...
0
votes
0answers
15 views

Has anyone successfully deployed WLC 8.3+ anchored wlan with PSK and CWA?

There seems to be something broken with Cisco WLC 8.3.140 and 143. 8.3 was the first AireOS release training to add MAC Filtering (CWA) and PSK. ISE is serving as the RADIUS server (v2.2). I can get ...
0
votes
0answers
27 views

OSPF routers not finding 'candidate default' for pseudo-internet exit (Loopback0) in Cisco Packet Tracer (CPT) [on hold]

Non networking expert here. Taking an introductory semester in CPT. Using CPT Student v6.1.1.0001 I have created and configured a network with three sections, one RIP, one OSPF and one EIGRP, with a ...
0
votes
0answers
24 views

unable to capture http request on loopback using wireshark

I am running apache2 webserver on my machine. When I try to access a webpage locally through a webbrowser as locahost/index.html then i dont see any packets having protocol http in the capture ...
0
votes
1answer
28 views

bind to specific address

What does bind to address 192.168.1.4 mean? I have to come to know that if an application bind to 0.0.0.0 then it means listen on all interface but it doesn't make much sense to me can someone ...
0
votes
0answers
14 views

Connect a Multicast sparse-dense deployment with a sparse deployment

I am working on a task that involves deploying a new network in parallel to the existing network. As a part of this deployment we are going to cross connect the two networks so that it will allow for ...
1
vote
0answers
38 views

Is this wireshark capture showing any issue?

I used Wireshark to capture the packets bellow: ... 350 18.942762436 d0:07:ca:0b:63:0c -> Broadcast ARP 60 Who has 13.210.32.75? Tell 13.210.32.78 351 18.947224197 d0:07:ca:0b:63:0c -> ...
0
votes
0answers
23 views

Which MAC address does my ISP need? [closed]

For my new network I want to use a Vigor 130 as modem in bridging mode and an OPNsense appliance behind that. The OPNsense will connect to the Internet. My ISP uses IPoE/DHCP for Internet access and ...
0
votes
1answer
19 views

localhost to localhost [closed]

By no means am I a wiz with wireshark, but I use it when things feel funny to see where traffic is going. I saw something that I have never seen.. What's the functionality of src: localhost dest:...
0
votes
0answers
16 views

Nat type Strict, how to change it to Moderate or Open? Behind a router from my ISP [closed]

I'm having a Nat type strict, checked using the Xbox networking method on Win10 (Settings---Gaming---Xbox Networking). Firstly, the problem I suspect, is I'm behind a router from my ISP. as my normal ...
0
votes
0answers
21 views

What's the process to use a cellular wifi hotspot as an ISP? [closed]

I'm currently waiting out an ISP outage. I have a Radware box that has static rules to push clients to the secondary ISP should the primary ISP go down. My secondary is the one that's down, so nothing ...

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