Questions tagged [ip]

The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.

Filter by
Sorted by
Tagged with
0
votes
0answers
13 views

Router unable to obtain IP

I own a d-link router model DSL-2877AL.. used to work flawlessly in the past 8 months but recently the routers internet light will always stay red which indicates a failed PPPoe negotiation.. VDSL2 ...
0
votes
1answer
28 views

Getting “already seen ipaddr” error when adding 2 secondary IPv6 addresses on a VLAN subinterface

How many secondary IPv6 addresses are allowed on a VLAN subinterface in CentOS 7? With the config below I only get the former IPv6 address successfully assiged to ens224.2015 while the latter IPv6 ...
1
vote
1answer
47 views

How can I assign an IP without DHCP enabled on the router and no static IP configuration possible on the device itself

Situation I have a Chromecast that I want to connect with an ethernet cable. So I've bought an ethernet to micro usb adapter. I plug the ethernet cable into my router but the chromecast will not get ...
0
votes
1answer
14 views

Issues Accessing Apache Server Hosted Over Mobile Data Network

I have an Apache server configured to serve files which works fine when I set Apache to listen on 127.0.0.1:* or 0.0.0.0:*. I can access the site from the local machines browser either with localhost ...
1
vote
0answers
35 views

Connection refused, but port is open

My Idea was to make netcat-Connection between two devices in different LAN; Now I looked in settings of WiFi-Router and created a port forwarding; port 4004 of router should now be able to connect me ...
-3
votes
0answers
45 views

Understanding Mac ifconfig output

I have the following ifconfig output on Mac. But I don't understand most of them. Could anybody help explain the meaning of all the output of ifconfig? Thanks. lo0: flags=8049<UP,LOOPBACK,RUNNING,...
0
votes
0answers
55 views

How do authorities track IP address?

From what I learnt about our IP addresses, they change every time we use another network. If the IP address of the machine can change, how do authorities track all internet activities of a machine? ...
0
votes
1answer
34 views

Why do me and another computer in my house have a different IP addresses

I want to make a LAN Minecraft server with my sister but it appeared that I was on the IP 192.168.0.24 and she was on 192.168.0.16. I am using an ethernet connection and she is on WiFi. Is there a way ...
0
votes
0answers
21 views

How to setup a SSH Tun Device?

I am trying to link two Ubuntu 20.04 servers together so that they both share an IP Server One is a cloud server with its own dedicated IP with DDoS protection and a hardware firewall. Server Two is ...
0
votes
1answer
48 views

How to size CPU and Memory if I am aliasing a large number of IPs? [closed]

I am aliasing a large number of IPs (500+) on a virtual machine and wanted to know if there are any parameters I needed to be aware of. Especially on how I should size the cpu and memory.
0
votes
0answers
21 views

Difference between WAN IP and WAN Static IP?

I have a static IP with my ISP. when looking at the cable modem status I see these 2 IP's. My public static IP is 173.162.x.x. That is what others see when I connect. Is 73.17.x.x just used to ...
0
votes
0answers
33 views

port forwarding doesn't work

I'm trying to open a port to play a game with my friend and it's not working: when scanning ports on my public IP via a port scanner, it shows no results for any ports. Router port forward settings: ...
0
votes
0answers
25 views

rhel + Device xxxx has different MAC address than expected

in messages file we have the following error ERROR : [/etc/sysconfig/network-scripts/ifup-eth] Device papa2 has different MAC address than expected, ignoring. is it minor alert , and we should ...
1
vote
1answer
19 views

configuring a multihomed host as a router

I have two linux hosts on my home network, host1 and host2. I'm trying to configure it so that host1 is connected to a vpn, and host2 can send packets out over the vpn by routing through host1. My ...
0
votes
1answer
76 views

No Internet connection with Static IP - windows10

Desktop running Win10 x64, with two ethernet cards, plus wifi. This is on a home network with router set to do the DHCP duty, address range 100 to 199. Numerous devices exist on the network via fixed ...
0
votes
1answer
29 views

Is there any way to send signal from hdmi to ethernet converters (which have no ip) over my network

I'm a bit of a networking beginner and I'm looking to send video over my network. I was thinking something like below; Camera -> hdmi/cat5 converter -> cat5 -> network -> cat5 -> hdmi/cat5 converter -...
0
votes
1answer
28 views

How to access a device from internet using DDNS when it is behind multiple levels of private network?

As far as I know, DDNS, or Dynamic DNS is used to assign a domain name to a device with a non-permanent IP address. Either this device, or the router that it's connected to, has to have a public IP. ...
0
votes
0answers
19 views

Communicate to a server in a different subnet

I have a router MW301R Mercusys that is connected to a ADSL modem with the IP 192.168.1.54 in the WAN. In this subnet 1.* I have a Samba server . The problem is that when the DHCP server assigns IPS ...
0
votes
0answers
14 views

Create a VPN VPS without changing public IP of devices connecting to the VPS

I want to access restricted websites without changing my IP address. I heard that a solution for this is to create an OpenVPN server from your VPS and use it to unrestrict the websites, but sadly ...
0
votes
2answers
33 views

Notepad ++ Make Ip Address subnet Ex = ?.?.?.?/24 How?

Hi guys i have a mikrotik router and i am trying to trace all the game server yet i did it but changing the subnet of the last period of the ip address is frustrating as hell. Is there a way that ...
1
vote
0answers
30 views

Pinging My IP and 8.8.8.8

If I ping my own public static IP, it gives me latency of around 20 ms whereas pinging 8.8.8.8 gives latency around 10 ms. Why is this so? Could this be a DHCP issue as I got to know that my router is ...
1
vote
1answer
34 views

server not accessible from outside the local network

I'm not able to access my server from outside the local network and I think the problem might be with the router settings or my ISP. In the local network I can access my server (nextcloud on raspbian ...
-1
votes
1answer
58 views

How does device A knows that device B is in the same network without static IP [closed]

Hello i would like to know how do devices in the same network find each other, without knowing the IP address of course. What is the system or pocess called. Several example of this are: I have a ...
0
votes
0answers
11 views

Debugging Ethernet connectivity issues for embedded computer (Odroid N2)

I have a bunch of embedded computers (Odroid N2) that are flashed with the same Ubuntu image. The Ubuntu image sets the Ethernet port eth0 to 192.168.15.201/24. I have a desktop computer with Ethernet ...
0
votes
0answers
5 views

Determining available IP addresses from a list [migrated]

So I'm coding in C for a list of IP addresses, listed one above the other in a .txt file, which should be read, and simultaneously pinging them one by one. Now, my main concern is to select which ones ...
1
vote
1answer
40 views

Why does nmap think my computer has two IP addresses?

Nmap seems to think my computer has two IP addresses. When I run ipconfig, I get Connection-specific DNS Suffix . : home Link-local IPv6 Address . . . . . : fe80::****:****:****:****%12 IPv4 ...
0
votes
0answers
5 views

Iteration of IP list in C [migrated]

I'm having some trouble coding in C an iteration, that's to be taken from a .txt file where there are several IP's listed one above the other in several lines. What I need to do is to print the whole ...
0
votes
2answers
42 views

Who does this IP belong to, possible spoofing attack?

I am currently using a TalkTalk router to access my home network. I've had issues previously with my connection being either slow or cutting out fully (not a common issue). I download XARP ...
-1
votes
2answers
50 views

How to find home router's port number?

I can't access my router. I have the IP, but I don't know the port number, and I can't access it without it. If anyone knows a way to override, and access without port number, please say. Up till now ...
0
votes
0answers
16 views

How to select default outgoing IP in Ubuntu 18.04?

I have a VPS server running Ubuntu 18.04, and I have 3 IP addresses: a regular IP, an Anycast IP, and a DDOS Protected IP, which are all in different subnets. Currently I have all of these IP ...
0
votes
1answer
52 views

How to change the IPv6 link local address of an interface in Linux?

I want to remove the default IPv6 link-local address of an interface and want to replace it with a customized IPv6 link-local address? Can you help me here? If I assign a new link-local IPv6 address ...
0
votes
0answers
46 views

Connected to wifi, but no internet access [migrated]

first question here. I was using wifi normally on my phone. Then I turned it off and after some time turned it back again. Since then I can not access the internet. It's showing Connected(no internet ...
2
votes
2answers
49 views

Can someone help me portforward?

Like others, I seek to port forward a Minecraft server. I do not know what I am doing wrong, every time I try to set up an IPv4 portforward, it never works out. Whenever I input: I get: For ...
0
votes
1answer
23 views

How do APNIC purchased block of IP Addresses appear on internet

Let's suppose I'm a company and I have purchased a block of 256 (x.x.x.x/24) public IP Addresses from APNIC. Now a company will have internet purchased from some ISP and that ISP assigns a public IP ...
10
votes
2answers
4k views

How does Apache know my external IP when I am on a LAN on a router that performs NAT?

So, I have setup an Apache server, and people tell me that I need to specify Listen :80 or put a virtual host in httpd.conf so that Apache allows traffic from my public IP. My question is, how does ...
0
votes
1answer
22 views

When I ping a site, sometimes it uses IP v4 and other times IP v6. Why?

These Pings were done at different times of the same day: C:\Users\LPress>ping www.ucla.edu Pinging gateway.lb.it.ucla.edu [164.67.228.152] with 32 bytes of data: C:\Users\LPress>ping www.ucla.edu ...
0
votes
2answers
21 views

incomplete results on dig trace

According to an example here: https://www.rootusers.com/12-dig-command-examples-to-query-dns-in-linux/ Such a dig trace dig google.com +trace should return such results: ; <<>> DiG 9.9.4-...
0
votes
0answers
13 views

Why can't the forwarding table of a router have a mix of private and public network entries?

For example, for the forwarding table below, is the 192.168.120.32/29 entry invalid because it belongs to a private network while the others don't? And if so, why is that? I must be very confused ...
0
votes
1answer
56 views

Understanding dig @ip address

What is the role of the ip address in the first dig command? Why are the two results different? What are the values 11 and 60 showing? dig @1.1.1.1 instagram.com AAAA ; <<>> DiG 9.11....
0
votes
0answers
10 views

Windows firewall rules to allow ips to load a site

I'm using a windows 7 machine with firewall that block all connections. Now i need to allow ip to load a domain, i tryed without success. I need to load this site growviews.com and app.growviews.com ...
0
votes
1answer
21 views

Reverse DNS Error

When performing reverse DNS queries (dig -x <IP>), I sometimes receive NXDOMAIN errors. From what I understand, NXDOMAIN means that the record is does not exist. If I perform a perform a typical ...
0
votes
2answers
187 views

Working within a large network with multiple private IP subnets

In a very large corporate network, the entire corporate network consists of many various subnets, all within private IP space. There are, of course, many routes out to public IP land, but a given ...
0
votes
1answer
1k views

Are X.X.X.255/30 and X.X.X.253/30 in the same range?

According to wiki: "The first address in a subnet is used to identify the subnet itself. The last address is used as a local broadcast address for all devices on the subnet." How would this work in ...
1
vote
1answer
20 views

Using Medusa on Linux

I was reading about Exploitation methods when I encountered Medusa. It says that it is a brute forcing tool. But the question is that what it actually brute forces? I read somewhere the Syntex of ...
0
votes
0answers
8 views

web application not accessible from other networks through public IP

I am trying to access Laravel web application from other network using my machine public IP so I ran the following: php artisan serve --host 0.0.0.0 --port 8083 then I forwarded the port on my ASUS ...
0
votes
0answers
23 views

Setting Proxy Using Command Prompt Failure Via Python

According to some of the blogs (including StackOverflow), I was trying to set proxy using cmd (run as admin). I am trying to do this via Python. Note: 1234 is used here as a mask to my current IP. ...
0
votes
1answer
85 views

Weird ISP setup: Static ip behind carrier-grade NAT

I'm new to "ISP level" networking so this question might be a bit naive. I've been having weird network issues in linux machines. As a debug/learning initiative, I decided to try and replace my ISP ...
0
votes
1answer
23 views

IP leaking from VPN services

I'm looking to buy a simple VPN service (let's say from NordVPN, or any other popular VPN company really) to only occasionally protect my internet activity. Most of the time (e.g., when casual ...
0
votes
1answer
61 views

Finding the default subnet mask, the network address, and the broadcast address of a Class D IPv4

In the address 225.97.13.7 (Class D) how would I go about finding the default subnet mask, the network address, and the broadcast address, known that it's in IPv4? Would it even be possible to do so?...
0
votes
0answers
50 views

TP-Link MR3020 router after Gargoyel unable to web-manage or reset to factory settings

Updated with gargoyel firmware but now I am stuck. I can neither login to web-manage or reset back to factory settings. Win-7 / Chrome 192.168.1.1 doesn't show login page!

1
2 3 4 5
48