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Questions tagged [ip]

IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.

IP (Internet Protocol) is a protocol which encapsulates data for transit across the Internet and encodes its source and destination addresses, among other parameters. It implements the network layer (layer 3) of the OSI model.

Questions related to IP (addressing, routing, and protocol issues) fall under this tag; questions merely containing an IP address do not.

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Why IP address overlapping occurs in IP forwarding table?

My understanding of an IP forwarding table is that they have a listing of different networks (identified by their IP ranges) and connects it to the next-hop router. However, I'm surprised why two entries in this listing have overlapping IP…
Pagol
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How to open google.com using curl with Host header (certificate does not match)

Since Google is using HTTPS/SSL I am unable to access it using the IP of Google.com and passing the Host header. I don't understand why this is not working. Here is what I have tried so far. I got the IP of Google.com tracert google.com Tracing…
Liga
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VPN and Local Network IP Conflict

I'm running into an issue on my network. I have a local network that connects to a router with an address of 10.0.0.1. I also have a Router on the VPN that with the same IP of 10.0.0.1. Unfortunately due to the conflict I am unable to connect to…
o3illc
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What keeps IPs from being double claimed across the world?

When I connect to the internet, my provider assigns me an IP. If someone else does that at the exact same time in another country with a totally separate provider, what keeps them from getting the same IP? Is there a super provider which all…
Seph Reed
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Azure: How to assign a Reserved IP to a new/existing machine?

What I am trying to do is configure my VM such that it doesn't lose the public IP between restarts. I have created a Reserved IP: I've tried this both with an existing VM and while create a new VM but I am unable to select my reserved IP: The…
DraxDomax
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How to route to an interface (not VIA an interface)

I have defined a dummy0 interface: sudo ip link add dummy0 type dummy sudo ip addr add 200.200.200.0/24 dev dummy0 The interface is there alright: $ ip addr show dummy0 50: dummy0: mtu 1500 qdisc noop state DOWN group default qlen…
volingas
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Using .0 ip on a routed /24 IPv4 subnet

After routing a full /24 subnet to a single server it's possible to configure the server to listen to any IP from the subnet without reserving IPs for the subnet itself or for the broadcast IP. Internally this works just great but I'm wondering if…
meowykitten
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Webserver, and Exchange Server on single IP

Is there a way to run both a web server IIS10 and exchange server using only one IP? They are two separate server but due to only having one IP, I only have a single 443 port.
Michael Downey
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VXLAN with different group but same vxlan id on ubuntu

I'm playing with vxlans on ubuntu 18.04 right now and I just found something strange. I have 2 servers with 4 containers on each. Containers are connected to bridges br1 - br4. There are vx1 - vx4 interfaces connected to corresponding bridges. Whole…
Ondra Sniper Flidr
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How do you have multiple websites on one ip address with no dns(raw ip address)?

I have two private websites that are running on different devices, that I want to use but aren't using a DNS, so the web pages that I am using are on the same Ip-Address. How can I get the contents of device b's webpage w/out contacting device A…
Pius Lee
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systemd: Why "ens3: Could not set route: Network is unreachable" when default route is valid?

Recently my VPS hosted at OVH abrutly lost connectivity. Upon further inspection, systemd-networkd was failing to set default route: ens3: Could not set route: Network is unreachable. It isn't clear to me why this is happening suddenly as…
bugzbunny
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Ubuntu set default outgoing ipv6 address

On my ubuntu server I configured multiple ipv6 addresses as following with netplan: network: version: 2 renderer: networkd ethernets: eth0: addresses: - xx.xx.xx.xx/22 - xxxx:xxxx:xx:xx::/64 -…
Migster
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Different IP for same FQDN using different resolver

For my domain gobudgie.ml I get different IPs on different DNS resolver eg.: jasmich.ml@8.8.4.4 (Default): jasmich.ml. 964 IN A 31.17.211.88 jasmich.ml@1.1.1.1 (CloudFlare): jasmich.ml. 966 IN A …
TheOneWithTheBraid
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OpenVPN on same server with proxy

I have OpenVPN server with clients with static IPs (192.168.1.0/24). When I access another device connected to VPN I get desired 192.168.1.2 static IP, however when I access proxy server on same machine via DNS I get my machine real IP without VPN.…
NapoleonTheCake
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How to solve the following error?

I have created one instance at Amazon Lightsail where Platform is Linux/Unix and choose Wordpress as an application. Using this Wordpress, I have designed one website and it is running using Lightsail instance IP[xx.xx.xx.xx]. I have created another…
user144878
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