Questions tagged [ipv4]

Refers to the 4th revision of the Internet Protocol, where addresses are usually displayed in the form: 192.0.2.235

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

How can i find device type and name in linux terminal without install nmap and other similar tools from it ip address?

I'm looking for find a way to get device name and type like ESET Connected Home Monitor . Eset : Connected Home Monitor can help identify vulnerabilities in your home network such as open ports or a ...
user avatar
1 vote
0 answers
22 views

When I put the Static IP I lose internet connection [closed]

I'm facing a problem we have several places that work by vpn from cisco and I can ping from this place to another with my static IP but I lose the internet connection and when i put the automatic ...
user avatar
-1 votes
1 answer
47 views

Create a VPC with specific network address

I was going to created a VPC but I'm confused with some questions. The questions i asked is on the second point dot. Scenario: You have a small business with a website that is hosted on an Amazon ...
user avatar
0 votes
0 answers
29 views

How to avoid using IPv6 `::1` when sending a syslog message via `logger` to `localhost`

When using logger -n localhost -port 12345 ... I realized that logger is using IPv6 when creating the socket. Unfortunately my syslog server listens on IPv4 only. The work-around I found was to use ...
user avatar
  • 304
1 vote
0 answers
32 views

Create Network Tunnel

Currently, I host a server in my house and a VPS from OVH. Is there a way I could create a network tunnel that lets me use any extra IP addresses from the OVH VPS for the server I have at home? If ...
user avatar
0 votes
0 answers
25 views

Why pinging ipv6 host does not work in this script

I wrote this script to simulate source->router->destination network in both ipv4 and ipv6. The ipv4 works, but the ipv6 does not. Can someone please help me figure out why it is not working? #!/...
user avatar
  • 219
0 votes
1 answer
66 views

Given the IP address 22.181.0.0/21, create subnets starting from this address

Given the IP address, 22.181.0.0/21, subnet the network for the following offices, based on the number of devices for them (The first two columns are given. I've calculated third, fourth and fifth ...
user avatar
0 votes
2 answers
299 views

Is it possible to host my website with just an IPv6 without an IPv4?

Basically, here's my situation: I have an old laptop and want to use it to host a website on my home broadband, but my ISP only allows one static IPv4 address on the home connection. I don't want to ...
user avatar
0 votes
0 answers
43 views

IPv6 DHCP is disconnected from the Internet

A friend's MacOS has this configuration and it is connected to the Internet: IPv4 DHCP IPv6 disabled And then he changed it to IPv4 disabled IPv6 DHCP In the following several seconds, this PC is ...
user avatar
  • 2,486
1 vote
0 answers
96 views

I need to disable reverse path filtering in linux to set net.ipv4.conf.default.rp_filter to 0(net.ipv4.conf.default.rp_filter = 2)

I need to disable reverse path filtering in Linux. I tried like this root@user:/home/user# sysctl -w net.ipv4.conf.default.rp_filter=0 now I like to know how to make above settings active so reverse ...
user avatar
  • 123
0 votes
0 answers
396 views

Can't access NAS over IPv4 on Windows 11 while other Windows 10 PCs can access it

TL;DR: I can’t access my NAS over IPv4 on my Windows 11 PC while other Windows 10 PCs can access it. I have an QNAP NAS TS-228 (Firmware 4.3.6) for storing my data. I freshly installed Windows 11 on ...
user avatar
  • 1
0 votes
1 answer
127 views

Why is google showing me a different external IP address than router

This question is in a way a follow up question from here: Can an ISP block port forwarding? I was look at the isp router's info page and the IPv4 address is : IPv4 Address 100.87.***.1** However when ...
user avatar
0 votes
1 answer
82 views

Change of OVH Primary IPV4 Address

Does anyone know if it's possible to change the Primary IPV4 address of an OVH Dedicated Server (Ubuntu 20.04) to a Failover IPV4 attached to the server? I am not wanting to configure/attach the ...
user avatar
0 votes
0 answers
30 views

Why is Zoom sending and receiving packets to an external address after being turned off?

I used LiveTcpUdpWatch to look at my outgoing packets and was surprised to see that Zoom is still active after being shut down. I am using Microsoft Defender Firewall with default settings (Windows 10)...
user avatar
0 votes
1 answer
31 views

Access IPs who's subnets differ

I have one system that is on 10.0.x.21 and another that is on 10.0.y.21 Is there a simple way to allow those two IPs to communicate? I am trying to create a setup where X and Y can both potentially ...
user avatar
0 votes
0 answers
32 views

How to update admin password of an offline machine

I have a windows machine that is a member of an Active Directory network, but the network is unreachable due to mistake in the network configuration that is not yet resolved. I know that this issue ...
user avatar
  • 1
0 votes
0 answers
27 views

how to find the IPv4 Address of a program running if you are using 2 network adapter

i am using 2 diffrent network adapter, every one got 2 ip IPv4 Address how to find the IPv4 Address of a program running in win 10 not the local ip or the target , i mean the public ip , because i ...
user avatar
0 votes
0 answers
282 views

Starlink No connection behind router EXCEPT when setting up ipv4 protocol custom DNS

When connecting straight to the starlink connection everything works fine and I have internet connection. However, when I place another router (tp-link ER605) after the starlink router I do not have ...
user avatar
  • 173
0 votes
1 answer
1k views

Why does my network adapter have two IPv4 addresses in Windows 10?

I have a USB Ethernet adapter (TP-Link UE330). I assigned it a static IP address: 192.168.6 199. I was having trouble automatically detecting a device on the network. I investigated and discovered ...
user avatar
  • 73
0 votes
1 answer
28 views

Making Ubuntu Server get IPv4 address?

I am having an issue when I go to use sudo netplan apply. I get an error. its going to be where the 1st x in addresses is x.x.x.x/x it gives me an expected sequence error. it is ubuntu 18.04 Any ...
user avatar
  • 1
0 votes
0 answers
45 views

Incoming requests with ISP NAT

My ISP uses NAT for the public IP addresses. I want to allow incoming requests to my router and local network, for example, RDP or WOL. I've configured the port forwarding but all the incoming ...
user avatar
  • 192
0 votes
3 answers
267 views

How do I copy the IPv4 IP Address from ipconfig to clipboard?

I want to get the ipv4 192.168.1.* from the ipconfig. I'm learning scripting and want to make an output value message box that displays the ip and copies it to clipboard. I have already done this by ...
user avatar
0 votes
1 answer
315 views

Why doesn't my bridge transfer DHCP broadcast packets?

I am trying to set up my debian bullseye desktop machine, which is connected through ethernet, as a wifi access point. I would like to use my ISP's router (freebox delta, FWIW) DHCP stuff. I already ...
user avatar
  • 101
0 votes
0 answers
57 views

force SMB to use IPV6 (Windows 10)

I am transferring files in 2 ways (bidirectional) frome one computer to another one (with SMB) The problem as you see is that one transfer is in IPV6 and the other is in IPV4. the IPv4 connection is ...
user avatar
  • 31
0 votes
0 answers
18 views

SIP over VPN doesn't work properly in certain network

As a test setup I have an Asterisk PBX server that two SIP clients can access via an OpenVPN connection. Both devices use OpenVPN Connect and get assigned an address from the pool 10.61.1.0/24. The ...
user avatar
0 votes
0 answers
46 views

What happens if I assign Google's IP address to my PC? [duplicate]

For instance, if I assign an Ip to my PC and that IP address is of some other website (say Google.com), then what happens? Traffic gets diverted to my system or what?
user avatar
  • 1
1 vote
1 answer
42 views

Does Static Ip address assigned to my NUC in one network changes when I change the network?

I bought a NUC on eBay, but I don't have a monitor. So I'm visiting my friend's place to use his TV as a monitor to install Proximox. I'm planning to assign a static IP to access the Proximox console ...
user avatar
  • 13
0 votes
2 answers
59 views

My DNS server can be accessed outside of internet?

I'm trying to create a DNS server for testing my Minecraft server. I read about how DNS works. I have seen some servers like Google's and Cloudfare's but I don't understand. Do users have to set to ...
user avatar
  • 3
0 votes
0 answers
111 views

How to change the default IP protocol version in Chrome?

My web browser—Google Chrome—uses by default IPv4 even if IPv6 is available. How can I change it to use only IPv6?
user avatar
  • 101
0 votes
1 answer
30 views

Different IP location from origin ISP

So, I'm from India recently my ISP Excitel located in India modify their network. I think it's merge to cogent ISP which located in United State which completely provide different external IP, if I ...
user avatar
1 vote
1 answer
104 views

Broadcast to all subnets

Does usage of network broadcast address will imply broadcasting all subnets? For instance, if my network broadcast address is 192.168.0.255 and I have four subnets, will sending a message utilizing ...
user avatar
0 votes
2 answers
27 views

I get same private IP for different IPS connection

I am connecting my pc through mobile hotspot(2 different mobile phones with different ISP). Suppose I connect to one hotspot I get IP address as X (for eg) and if I connect to another hotspot from ...
user avatar
0 votes
0 answers
23 views

Simple Failover dual homing setup

I have a 50Mbps fiber connection, and it has daily downtime of 10%. The connection is down, exactly when I start to do something important. Also, I have a 4G connection with 4GB/day limit and weekend ...
user avatar
4 votes
0 answers
4k views

Force Google Chrome to visit a website with IPv4 (instead of IPv6), possible?

Is there any way to force Chrome to visit a certain website with IPv4 only and not use the IPv6 address? I know there is a way which works for Firefox, as in going to "about:config" then ...
user avatar
  • 153
0 votes
2 answers
493 views

Subnetting - 192.168.20.29/28 Valid Host Addressses

I'm in the process of practicing subnetting and came across this question, which I cannot find an explanation online. The question: Given the address 192.168.20.19/28, which of the following are ...
user avatar
0 votes
1 answer
311 views

How to assign IPv4 addresses to LAN clients on OpenWrt?

I flashed my router with OpenWrt and while WiFi devices receive IPv4 addresses, LAN [wired] devices receive IPv6 addresses. I am new to networking and not familiar with IPv6, so I would like to avoid ...
user avatar
7 votes
2 answers
1k views

Accidentally changed an IPv4 setting on Synology NAS Cannot access it anymore

I have a Synology NAS which was working fine - for the usage I was making of it : backup - but it wasn't connected to the internet. I was able to access it via the browser GUI or in windows (via \...
user avatar
  • 215
0 votes
1 answer
35 views

Impact of Enabling UDP Checksum (IPv4) on the System

AFAIK, UDP checksum is an optional feature on IPv4. I want to enable it on a gateway (IPv4), but I want to know if it has any negative impact on the system, e.g., increasing CPU utilization or ...
user avatar
0 votes
1 answer
80 views

Does CIDR Notation do away with matching IP/Subnet masks?

With CIDR notation, do IPs and subnet masks need to match? For example, 192.168.0.0 = 255.255.0.0? Or does CIDR do away with this entirely? How does a network know if the host IP address is on the ...
user avatar
0 votes
0 answers
66 views

Migrating Home Network/Server to IPv6

So, My current setup includes 2 internet connections via different ISPs coming into my multi-wan router (TL-R480T+) along with another connection from 4G Router. So, in all 3 internet connections. ...
user avatar
0 votes
0 answers
68 views

macOS: Ping no response but ping6 working

I have a MacBook Pro 2015 running on macOS BigSur 11.1. The device is connected via wireless-lan to my router. The network is working with ipv4 and ipv6. The MacBook gets an ipv4 and an ipv6 address. ...
user avatar
0 votes
1 answer
33 views

ip address to connect to remote database

I understand that there's local ipv4 address that we can get from ipconfig in commandline and the public ip address that we get from google. If I am trying to establish connection to a remote database,...
user avatar
0 votes
2 answers
180 views

Is it normal to have 2 IPv4 DNS addresses on my PC?

I'm new here and not very knowledgeable when it comes to computers so I'm sorry if my question comes across stupid. I have been working from home and I checked my WiFi connection on properties (using ...
user avatar
  • 1
0 votes
1 answer
43 views

Are local IP addresses on home routers always IPv4?

What the title says. I want to know whether I can assume all internal IP addresses supplied by a regular home router will be IPv4 or might they be IPv6 as well?
user avatar
  • 1,449
0 votes
1 answer
40 views

When I do a GeoIP lookup, why does the nearby capital city come up instead?

(I am starting this Q/A to help a mispost on https://security.stackexchange.com/questions/242826/why-is-an-ip-address-in-a-different-city) I personally live in a smaller city outside of my State's ...
user avatar
0 votes
2 answers
332 views

How can I configure my router to assign two static IPs to my computer?

How can I configure my router to assign two static IPs to my Computer? My router is a D-Link DIR-825ACG1 AC1200 Router. And my PC is running Ubuntu 20.10. When I go into my routers LAN settings, I am ...
user avatar
1 vote
1 answer
57 views

Do you need two separate IPs each, for hosting a website, and for hosting a mail server? [IPv4]

Edit - I am only talking about public static IP addresses here. Do you need two separate IP addresses each, for hosting a website, and for hosting a mail server? Or can I use the same IP address for ...
user avatar
1 vote
1 answer
302 views

Circumvent DS-Lite restrictions to allow incoming IPv4 request on single port

I have recently moved, and my new ISP provides a DS-lite/carrier-NAT connection so that I do not have my 'own' IPv4 address but I'm pooled with many other people behind a single IPv4 address. As a ...
user avatar
  • 33
0 votes
2 answers
958 views

How to find the fixed IP of a device connected directly to the computer?

We have an Automatic Weather Station. I connected my PC using an ethernet cable to it directly. I accessed the AWS using the IP 192.168.1.115 and changed the IP to some other class fixed IP. After ...
user avatar
0 votes
4 answers
219 views

Why does "ping X" work, where "X" is an arbtrary whole number?

So, I discovered a strange quirk of the Windows 10 ping utility. If you ping a whole number instead of an IP address, it will "convert" that number to an IPv4 address. The conversion is such ...
user avatar

1
2 3 4 5
8