All Questions

-1
votes
0answers
4 views

how can i locate location a far away Hotspot that isn't connected to internet?

hello every one the reason of this question is i want to use an app that turns the Mobile Hotspot on when the sim card get's removed !!!! in a useful way/ to help getting the phone back after ...
0
votes
0answers
8 views

What Is Microsoft Windows Server 2016 Support? [on hold]

I want to know about Microsoft Windows Server 2016 Support. Can Anyone Please tell me about this?
0
votes
1answer
14 views

How do I find the IP of the DNS server that respond for a specific domain name?

So as the title says I want to get the IP of the DNS server that respond when I'm trying to reach a specific domain, using bash commands. If I understood it right, when I'm trying to reach www....
0
votes
0answers
9 views

Linux equivalent of “no ICMP Unreachable” and “no ICMP Mask Reply”? [on hold]

I have a Linux machine that is being used as a router. It has quagga installed and has ip forwarding enabled. It's forming an OSPF adjacency with a 3925 Cisco router. I being asked to ensure that ...
0
votes
0answers
8 views

Need some assistance [on hold]

I am a new Jr. Admin and still learning Python. I have 88 cisco switches in my enterprise network and I would like to come up with a script that would allow me to backup the config file settings for ...
0
votes
0answers
6 views

iptables not working [on hold]

I have a NanoPi M1 Plus device with Ubuntu OS in it which I am using it as a router. The device is getting the internet via ethernet cable (eth0 interface) and the WiFi AP is provided via interface ...
-1
votes
0answers
11 views

How to control various ports by blocking/Unblocking? [on hold]

Actually I don't know the answer. I want to know. whom ever know post it.
0
votes
0answers
14 views

Which system calls are called in TCP state diagram? [on hold]

Above diagram describes the TCP state diagram of three-way handshaking. I'm curious which system calls are called transition between CLOSED state to LISTEN state. socket() , bind(), and listen() ...
0
votes
0answers
12 views

Add ports on Packet Tracer 7

how do you create new ports using WMIC-4ESW on my routers on packet tracer 7? both of my routers have 2 GigaEthernet and I used them because my 2 networks on each router. I need to be able to add more ...
0
votes
0answers
9 views

PPPoE authentication section

Thank you for reading, I have a question about PPPoE.I cann't limit PPPoE section on juniper MX960. please let me know, How to control and limit PPPoE section?
0
votes
1answer
15 views

Quanta switch not resolving addresses

I've got this brand new Quanta T3048. I've configured the VLANs we need but it came to my attention that the switch won't resolve any address even though I've set it (according to the configuration ...
0
votes
1answer
24 views

How to measure time a request takes between two machines?

I need to calculate the time it takes between: a request sent from a machine the request is received at another machine I can do it by logging, but the clocks at these 2 machines are possible have a ...
1
vote
2answers
34 views

IKE phase 1 and phase 2

Was going through the IKE phase 1 and phase 2. I have some questions regarding the same which is bothering me with respect to main mode and quick mode.Please correct me if i go wrong somewhere. Phase ...
0
votes
0answers
12 views

What information should provide for third party Pen testers [on hold]

I am going to hire third party security company for Penetration testing in our company network. Already i have selected pen testing company and black box test to be done by them. But they have ...
0
votes
0answers
11 views

How to connect IP network to outbuilding [on hold]

At my lakehome I have a great Internet connection with both wired and wireless devices. And I also have a garage some distance from the house that I want to build an office into with a wired ...
0
votes
0answers
9 views

Securing J-Web interface with user lockouts after multiple bad login attempts

I have a bit of an odd question that I can't seem to find much success in getting an answer via web searching. I'm wondering if there is a way to secure the J-Web interface with user lockouts after ...
0
votes
0answers
9 views

Possible problem when packet loss occurs on every hop? [on hold]

I began looking into my networking issues after experiencing random high latency while gaming and also audio drops while in GoToMeeting. I ran PingPlotter (results here). The results...I have no ...
0
votes
0answers
23 views

Practical limits of shielded Ethernet cable

If I run S/FTP Ethernet cable ran next to 120V conductors (inside 3/4" conduit) for about 70 ft. is there chance that I'll have a usable data connection? I'm fully aware that this is a terrible way to ...
0
votes
1answer
22 views

Download Internet Routing Table

What is the best way to download a snapshot of the Internet's IPv4 routing table? I need check if IP addresses are routable. It needs to function offline, so a looking glass server won't work. I know ...
0
votes
1answer
29 views

Use cases for GRE over IPSEC

I'm trying to understand use cases for GRE over IPSEC. In the diagram below, each site uses GRE to encapsulate multicasts associated with OSPF. (There is still a requirement to configure SAs between ...
5
votes
1answer
182 views

Is the first address of the subnet a valid configurable address in case of IPv4 and IPv6 point to point networks?

Am I correct, that first address of the subnet is a valid addresses to configure in hosts/routers in case of IPv4 and IPv6 point to point networks? For example, in case of 192.0.2.0/31 one of the ...
0
votes
0answers
10 views

Two vpn on one desktop [on hold]

Using windows 7. Considering to try windows 10. Is there any vpn service where I could choose which programs to us it on? I need to run one program via certain country through VPN, and another program ...
0
votes
0answers
4 views

Connect Netgear router R7000 to WAN-side using its Wifi antennas, LAN-side using its ethernet ports [on hold]

I have purchased an R7000 router specifically for the purpose. I wish connect Netgear router R7000 to WAN-side using its Wifi antennas, LAN-side using its ethernet ports. This is residential. ...
0
votes
0answers
12 views

Are there Opensource Bandwidth allocation software? [on hold]

Are there any free or cheap software that would allow a network administrator allocate and possible sell Wi-Fi bandwidth to students on campus?
0
votes
1answer
48 views

Networking Questions (Routing and Switching)

I inherited a haphazard network that I'm in the process of cleaning up and modernizing. Here is a synopsis of the current issue: We have a MySQL DB hosted on a Windows 7 PC (solely used to host the ...
0
votes
0answers
42 views

OSPF over IPIP tunnel doesn't work for CSR 1000v in AWS

I literally have the following topology shown in the figure below. I have 4 VPCs, each VPC has 3 subnets (1 for the VM instance and the other 2 for interfaces). Each VPC hosts a Cisco CSR 1000v in ...
0
votes
0answers
15 views

SNMP Hex to normal string for VLANS and ports [on hold]

I`m searching possibility to get untagged ports from ZyXEL switch SNMP Problem is that Q-BRIDGE-MIB dot1qVlanStaticEgressPorts,1.3.6.1.2.1.17.7.1.4.3.1.2 return HEX... that must be decoded. Do ...
2
votes
2answers
180 views

tcp connection and stream flow question

Could anyone explain the main principe of tcp flow when making a session ? I have take a tcp dump when i'm trying to browse a site. when I analyse the packet by wireshark, i have found many Three way ...
0
votes
0answers
9 views

Mobile Network Connection Sharing [on hold]

Trying to understand the nuances of mobile network connection sharing. If I have a mobile device (e.g an Android Pixel) connected to a 4G network and I have 20 http requests to make simultaneously ...
0
votes
0answers
12 views

Aruba clearpass machine based role mapping

is it possible to map roles to machines using 802.1X in clearpass? I have computers in several groups in AD and i want to assign vlans basing on machine group membership.
0
votes
0answers
4 views

problem: wifi in remote area Question: extending mobile network? suggestions how / what else? [on hold]

I'm living at the corner of mobile network coverage, on top of the hill the reception is 2 out of 5. The house in which I'd like to have wifi (and cellphone reception) is in a ditch behind the hill. ...
0
votes
0answers
11 views

Calculated CRC codeword is different from answer [on hold]

Data is 11001000 and generator polynomial is x^3+1, my codeword is 11001000010. However, answer is 11001000100....why?
3
votes
1answer
47 views

Does QSFP+ require 4 fibers?

I am currently designing a network, and there are 2 fibers between 2 switches. Can I use a 40Gbit QSFP+ module to achieve this speed or is 10Gbit SFP the best possible without adding more fibers?
0
votes
0answers
18 views

Identify near by cell phones [on hold]

I am trying to build a system where I can identity a person by his mobile phone (something like the IMSI), I did some research I found that this can be done using an SDR-RTL. My question is what ...
0
votes
1answer
27 views

Bad mask for loopback interface

I am trying to implement BGP session. I was given this table. When I try to configure loopbacks the first loopback works in the proper way R1(config)#interface loopback 0 R1(config-if)#ip *Mar 1 ...
0
votes
1answer
24 views

Is it possible to make a TCP connection connect back to the destination port? [on hold]

I'm new in this forum, I thought I could ask a question here. I've set up a proxy by using nginx and Openresty, which supports LUA scripts, that changes the body of a HTTP SOAP POST request. The ...
0
votes
0answers
9 views

“Faking” a 4G router as a mobile device [on hold]

I have recently take out a new mobile subscription, including two SIM cards. The first card is the main one (unlimited calls and internet + roaming) and the second one is used to surf the Internet and ...
0
votes
0answers
17 views

Question DLink DVA 5592 boot not completed [on hold]

This is the log of my router that seems "bricked" https://paste.debian.net/plain/1055277 I got access to the DLINK console by using UART and 4 pin (VCCm GND, TX and RX). I can also open the CFE ...
0
votes
0answers
10 views

License required for activate MPLS VPN L3 , VPLS and QoS in Cisco ASR1001-X

Is anyone know the license needed for theses features activation : MPLS VPN L3,VPLS ans QoS in Cisco router edge ASR1001-X ? Thank you in advance for help.
0
votes
0answers
17 views

Python automation of a teminal server [on hold]

How can I telnet into a terminal server and then open a line to a connected device using "1.1.1.1 2003", using python? Tried with telnetlib, commands work perfectly on the terminal server, but it does ...
0
votes
0answers
11 views

how password recovery catalyst 6500? [duplicate]

I have a Cisco 6500 switch and I forgot about the password,How do I get a password recovery?
0
votes
0answers
22 views

USG Remote to USG Pro Home Base: Cannot route Internet-destined traffic over IPSec tunnel

We have a situation where we have two sites - a HOME office and a REMOTE satellite office. Due to the fact we need multiple IPSec VPNs at HOME and each REMOTE, we can't use the automated VTI approach,...
0
votes
0answers
11 views

Why do I have to add network card name in ipv6 link host address on linux when using php file_get_contents()? [on hold]

I have a question when I try to request an ipv6 link host address on Centos7. Here is my code. var_dump(json_decode(@file_get_contents('http://[fe80::852f:f5c7:15f1:d726]:8080/api/init/info', 0, $...
0
votes
0answers
6 views

Pfsense for monitoring and blocking sites [on hold]

Hi. Im a noob. I want to ask question regarding pfsense. I have two lan networks. As shown in the image, wireless is directly setup by isp modem and other lan network is mirkotik router. Can someone ...
0
votes
0answers
8 views

Make docker containers visible via host network [on hold]

hey guys I have a docker container A with a domain name attached to it on a host B with a domain name attached to it as well.....how can I access the said container A via A's domain name rather than ...
0
votes
0answers
5 views

SSHing into a RasPi while an openVPN connection is active for all IPs not within the local 10.* network [on hold]

I would like to be able to SSH into my raspi; which I can do so over the wlan0 interface if it simplifies things. All other connections Id like to be routed through an openvpn connection at interface ...
0
votes
0answers
13 views

WLAN not connecting to internet on laptop but works with mobile [on hold]

I have installed a WLAN router, which works out of the box, connecting to the internet and was able to access the internet through Wifi over the mobile phone. When connecting to the WLAN from the ...
0
votes
0answers
5 views

SSH VPN in Linux/Windows/OSX? [on hold]

?SSH VPN in Linux/Windows/OSX Can SSH create a local virtual NIC in Layer2 working as a L2/VPN<br> preferably over UDP<br> maybe tunneling PPTP<br> ?in Linux ?in Windows (OpenSSH) ...
1
vote
2answers
38 views

Users on one VLAN cannot access multicast resources

Troubleshooting an issue here on our network. Users on VLAN 10 can view our multicast feeds on Internet Explorer. Users on VLAN 20 cannot view these same feeds. This issue is the same for multiple ...
0
votes
1answer
17 views

i cant configure the ip adress and subnetmask ,i only have one router “1941” and 2 pc's

the command line is this : Router0(config-if)#ip adress 192.168.1.1 255.255.255.0 the error message is : % Invalid input detected at '^' marker.

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