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Questions tagged [ip-address]

An IP address is a unique network-level identifier assigned to a network-enabled device.

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No internet access after assigning Static IP address on android for a Win 10 hotspot

Setting static IP Address on android device, results in its WiFi connection not working (no internet). If its DHCP on the android device, WiFi (internet) works. I am using inbuilt hotspot of windows ...
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1answer
29 views

smsc95xx removes assigned IP address

My setup is raspberry-pi 2 archlinux I statically assign eth0 a IP address such as 10.0.1.101. No matter how I do that (via /etc/netctl/eth0 or via cli: ip addr add 10.0.1.101/8 dev eth0); every ...
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Can't assign ip address to veth directly after creating veth pair

If I run the following, then the ip address doesn't actually get added: ip link add veth0 type veth peer name veth1; ip address add 10.0.1.2/24 dev veth1 However if I sleep in between the commands, ...
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1answer
34 views

Huawei HG8245H MAC Address Change (Clone)

My last router had an option to clone/change my router's MAC Address (did this in order to change my public IP Address for x,y,z reasons) On this specific router "Huawei HG8245H"(which is a 2in1 ...
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1answer
57 views

Why is eth0 responding to ip-address assigned to ethernet gadget usb0?

We configure networking on an embedded Linux system by setting one static IP-Address(169.254.0.1/16=LLA) on an Ethernet-Gadget/usb0 while using DHCP on Ethernet/eth0(192.168./16). To our surprise the ...
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2answers
50 views

TP-Link Different Dynamic Public IP for every LAN port – Possible?

I have a dynamic IP home connection and I have a TP-Link router.  Due to the business I’m running, I need to have a different public IP address for each connected device via LAN cable.  I am not very ...
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3answers
87 views

How does a home router acquire its IP address ? [closed]

When you first turn on your home router, how does it acquire a public IP address ? Is it a statically assigned IP address given to you by your ISP provider ? Or does the router act as a DHCP client in ...
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35 views

Routing Network through OpenVPN: Network Lost

I am trying to route my traffic through OpenVPN server so that all traffic can go through the server and I access the internet through it. Here is my route table, looks like I lost my access to the ...
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1answer
40 views

How does IP address spoofing work when there is a router with public IP involved?

It says on Wikipedia that egress filtering 'verifies that the source IP address in all outbound packets is within the range of allocated internal address blocks' and on IP spoofing it says 'Ideally ...
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6answers
4k views

Is it possible to see my external IP address without making an outbound web request?

If your connection is NAT'ed, is it possible to see your external IP address without making an outbound web request? Any OS (Windows, Linux, etc.) is fine.
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1answer
74 views

Undo routing table addition

I followed the instructions in this question to add an entry to my routing table to solve my collision problem while on a public Wi-Fi network. This is what I ran: ip route add 10.52.0.14/32 dev tun0 ...
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1answer
52 views

Reserving IP Range in Home Routers

I would like to ask how can I reserve an IP Range on a home router? For example, I have a Cisco RV215W, and I would like the IP Range 192.168.1.100 - 192.168.1.115 to NOT be distributed by the router, ...
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61 views

Change IP Address for all Network Interface

netsh interface ip set address name="Local Area Connection" static 192.168.0.1 255.255.255.0 I am aware of this command for changing Network Configuration for a particular Network Interface. But In ...
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2answers
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In a symlink pointing to '127.0.1.1:+xxxxx', what is the plus character for?

On my Linux filesystem, a symlink points to 127.0.1.1:+xxxxx. Why the plus sign? Could there also be a minus? Why not just 127.0.1.1:xxxxx?
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1answer
58 views

Weird ip addresses in ssh login history

The following piece of record is among the list from 'last' command: root pts/0 60-249-115-**.hi Thu Aug 2 00:24 - 02:39 (02:14) where ' ** ' stands for two numbers ( I don't know if there ...
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1answer
68 views

Reserved IP address taken by another device

How is it that on a local area network with a router that allows IP address reservations (exempting the special situation that a static address is assigned to the different device) that a completely ...
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1answer
92 views

ffmpeg choose outbound IP (eth0 or eth1)

I have 2 IP addresses on my server. $curl --interface eth0 ifconfig.co 111.111.111.111 $curl --interface eth0:0 ifconfig.co 222.222.222.222 So via curl I can switch via interfaces so ...
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0answers
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How does unRAID enable http://tower?

You can see in this video https://www.youtube.com/watch?v=-9prjO3Qq1s at 10:55 that Linus enters http://tower into the browser, and the webGUI loads. How does unRAID do that? Does one have to set it ...
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0answers
210 views

Can't obtain IP with Realtek 8821ae on Ubuntu 18.04

I'm having problems connecting to WiFi. I can see networks, but not connect. Facts I can see different networks available, but can not connect Ubuntu 18.04 (Kernel 4.18) dual boot with windows 10 ...
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1answer
60 views

IP conflict on macOS High Sierra: find log with hardware address of conflicting device

I am on a university network with a computer running macOS High Siera that has its IP address assigned via DHCP. On a regular basis (1 or 2 times a week), I lose all network connectivity for several ...
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1answer
95 views

Why does one have to enter subnet mask instead of simply number of 1-bits in the mask?

As I understand, subnet mask must be contiguous. So e.g. you can't have a mask of 255.1.0.0. The networks are often denoted as e.g. 192.168.5.0/24, which automatically contains all the information to ...
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1answer
2k views

Getting IP address of all device in local network , windows 7

There are multiple posts of this in many forums including this one, some of them involve using a third party app, and some involves using arp-scan or arpping tool in linux. I am trying to get an idea ...
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48 views

Converting Multi-subnet SOHO to IPv6

I am migrating my multi-subnet ipv4 home network to ipv6. Unfortunately, I am with an Internet provider who supplies only one non-but-mostly-static GUA/64 address. With or without Internet, I want ...
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dhclient with '-s <server-ip>' flag

I want to understand under which circumstance this command is valid. As i can see, using this command the discover packets have unicast destination ip same as that of the provided server ip while the ...
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0answers
45 views

Subnet Configuration for OpenVPN network

I have a network made up of many wireless access points all connected over OpenVPN to a central (distinct) server. Each access point assigns DHCP addresses in its own /24 subnet. I am unsure of the ...
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2answers
90 views

Plug and play for networks with and without DHCP server

I have a device that can be used in two different scenarios. One is that it is hooked up to an ordinary Ethernet LAN company network. This network has a DHCP server and the device is expected to be a ...
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4answers
4k views

Does it matter which static IP address I choose for my devices?

I am setting a static IP address for my desktop PC and reserving that address on the router so that it only assigns that address to my PC. Is there any advantage or disadvantage to choosing certain IP ...
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0answers
39 views

Why are my DHCP leases not working?

I am trying to make DHCP assign an IP address to the "PCNEW" node, but it is not working. Can anyone explain why?
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0answers
75 views

Autoconfigure link-local IPv6 address on GRE tunnel in Linux

I don't see how to get Linux to automatically configure a link-local IPv6 address for a GRE tunnel endpoint, even though it seems to have that ability since 2011. Here is the transcript. The 10.10.10....
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0answers
35 views

Wrong IP from hostname

I have two Windows PCs connected to a network (Physical). Desktop - 192.168.0.100 Notebook - 192.168.0.101 Both have VM VirtualBox installed, so both have the VirtualBox Host-Only Network. Desktop -...
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3answers
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Do 'dumb' (non-smart, non-managed) switches have an IP address?

Do 'dumb' switches, i.e., non-smart, non-managed network switches have an IP address? I'm scanning various ranges and not seeing them show up. I know by their definition they won't have a web ...
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0answers
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Ping expands IP to 4 blocks [duplicate]

When mistyping an IP address I noticed the following behavior of the ping command: It seems to fill incomplete IP addresses by inserting zeroes. Is there any reasoning for the strange locations in ...
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2answers
151 views

A weird IP with ping: different from nsLookup IP: different from actual IP

On another PC Can Google remote desktop into AcerDragon. But when accessing it via network, it cannot be found. C:\>ping acerdragon Pinging acerdragon.home **[192.168.1.9]** with 32 bytes of data:...
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IP address remains unchanged when switching from one WiFi network to another

I sometimes have to switch between two WiFi networks on my Windows 7 machine, A (192.168.1.*) and B (192.168.3.*). Both networks use DHCP and my network properties are set to use a DHCP address ("...
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0answers
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Azure VM IP and its geolocation

I shutdown my Azure VM everyday in the evening, when it comes online the following morning it gets a new public IP (which is fine for me). However the IP location if I do WHOIS lookup sometime shows ...
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1answer
2k views

how can i have a static ip address for my laptop which uses my mobile's hotspot for internet?

I have been using mobile hotspot for internet on my laptop but now I am about to start a work which requires me to work with only one IP address that is a static IP address,basically, it is online ...
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2answers
57 views

How can AP work without having IP address assigned?

I have an an ASUS EA-AC87 AP which I cannot re-configure since I cannot find it in the network. Network structure: [EA-AC87(AP)] <-UTP-> [RT-AC68U(DHCP, WAN)] <-UTP-> [Fiber Optic Transceiver]...
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What is the difference and relationship between a process id and a port number?

Process is a program in execution. E.g. Firefox. I don't understand the relationship and the differences between the terms "process" and "ports". When I run netstat -no -p -TCP on cmd I can see ...
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7answers
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How do I get cells in Excel that contain IP addresses to sort properly?

I am currently working with a large list of IP addresses (thousands of them). However, when I sort the column containing the IP addresses, they don't sort in a way that is intuitive or easy to follow....
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1answer
136 views

Primary router routes everything through secondary router

I have two routers, that I want to represent two subnets. They are configured in this way: Primary router (from ISP): LAN: 192.168.0.1 / 24 DHCP: 192.168.0.10-100 SSID: 'router1' Secondary router: ...
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MAC address of all unresponsive IPs in my network are the same as the gateway mac address

I have problems assigning a new address to one of my servers, every time I want to add a new address it says that the address is already in use. So what I'm doing now is to use the arp tool to see ...
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1answer
136 views

How to assign a domain name to a device on a local network?

I have a product that allows users to control the operation of an equipment over a wifi network. In this local network there is a webserver (apache), which I would like to access via a custom domain ...
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2answers
332 views

Roommates have several IP addresses on LAN : how and how to stay at one?

We have a not so bad connection at home, but we have some huge lag spikes. We have a terrible upload rate (around 0,95MBps at peak performance) and as soon as there's too many people on the network, ...
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0answers
99 views

My PC won't assign an IP address to any device connected to it

I WAS successfully using my PC (Windows 8.1) as a Wi-Fi hotspot (using basic Command Prompt commands). I had been connecting my consoles and my phone to this hotspot. In the last few days; no device ...
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2answers
6k views

How to access 192.x address space from 10.x address space?

I have a child router with 192.x.x.x address space. On any machine here I can access the 10.x.x.x address space. The reverse is not true. A machine on 10.0.x.x cannot ping 192.168.x.x. How do I ...
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1answer
100 views

Best way to setup SSH to permanent IP for a dynamic IP on home internet?

I have a special computer at home which I'd like to be able to just SSH to without any worries about a change in my IP address. Of course I'm in an area with only Comcast, and I don't want to deal ...
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1answer
70 views

Roommate has 6+ IP adresses and clogs the network

I hope this is the correct place to ask this question. One of my roommates' computer is shown on the router having 6+ IPv4 adresses. Yesterday evening it went up to 9. It seems he gets them one by ...
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3answers
297 views

Why aren't public IP addresses always displayed with their subnet mask?

I've been told that a public ip address without its corresponding subnet mask is meaningless, because one couldn't know how to split the network id from the host id, which makes total sense to me. ...
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1answer
889 views

how can I prevent a redirect to localhost - ubuntu 17.04

I am in the process of setting up a Ubuntu Server (17.04) with Webmin and Wordpress. The ip address to the server is 192.168.0.2. Browsing to the address http://192.168.0.2/ will evoke a redirect to ...
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1answer
734 views

Weird IP address coming from ping command

Usually, when I ping a website, I will see the IP address of the domain. However, recently, I notice that my ping command, instead of showing the IP address of the website, is showing something that ...