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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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What is the VPC accepted address and why

i am trying to create a vpc but the ip i am providing is not accepted which is 192.168.1.1/16 but aws says i can use the following range if i set to 192.168.0.0/16 it works , i guess to an extent still some clarity would be great When you create a…
akash
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Network interfaces, how many can handle

I got very confused about network interfaces. My laptop has only 1 network interface card with just 1 port. So I assume it is 1 mac address. When router using its routing table to route packet to my laptop it sends it to a registered mac address…
Anton Stafeyev
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Different DNS resolution for multiple IPs

Greeting's, I am trying to configure different DNS resolutions for: maniarfamily.com -- I want maniarfamily.com (or www.maniarfamily.com / https://www.maniarfamily.com) to point to Wix (23.236.62.147). cloud.maniarfamily.com -- I want this to point…
Parth Maniar
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About duplication IP Settings on Cisco L3 Switch

I set up the IP for Cisco L3 switch, but why is the error only eth 1/2 even though there is an IP duplication as shown below? SW(config)# SW(config)# interface mgmt 0 SW(config-if)# ip address 192.168.1.1/24 SW(config-if)# no shutdown SW(config-if)#…
dum0785
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Is IP rotation "a thing" for improving security in web servers?

In this article from Cloudflare, IP rotation is mentioned as a way to protect web servers. How does that work? Is this the same as ordinary load-balancing with failover, or something else?
dsign
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map local address to external one?

Currently I have a network setup like this: Router (aka. OuterRouter) to connect to the Internet (localIP: 192.168.0.1/24, externalIP: ) Router (aka. InnerRouter) for local network. This router uses its external address…
SOReader
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Why may a machine be seen as having a local address by ssh server when sshing to itself through public IP?

I configured sshd_config on two machines A and B in the same way such that connection is possible in local network with password : Match address 10.0.0.0/8,172.16.0.0/12,192.168.0.0/16 PasswordAuthentication yes Both machines have only private…
hello world
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How to create a VPN that maps users into VLANs each?

I want to setup a VPN server that puts each user into a different VLAN. I've got a network with about 200 users in which each user is in a separate VLAN with his own /27-IPv4 network. Which user belongs into which VLAN is determined by an LDAP…
betanummeric
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Change multiple interface IP’s with networkd on coreos

I have a working CoreOS machine where I need to change two virtual network interface IP’s in the /etc/systemd/network file like this: [Match] Name=interface name [Network] Address=ip address. This works great for one interface, but when I add a…
spacewalk92
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Access print connected to another switch

I have two servers (NethServer and Zend) "creating" two different IP pools. These two servers are connected to different switches, one of the switches has a printer connected. So, how do I make the computers on the other switch communicate with the…
zorak
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How can I access a .local url for a virtual ubuntu server installation?

I recently installed ubuntu server on a virtualbox virtual machine. I tried to connect it using .local but it didn't work? How can I access it from a url but not an IP? (I do not want answers saying to modify /etc/hosts)
randomuser5215
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How to determine if a public IP address is in a datacenter or home etc

How can someone determine if a given IP range is in a datacenter or for home usage etc.? Companies like MaxMind provide lists of IPs located in hosting centers. How do they get this information? Do they simply look for specific fields in whois? or…
lightspeed
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ip routing src rewrite

been fighting on this configuration for too long. Let say a public IP : 1xx.24.184.yy/32 Let say a private network : 10.184.yy.0/28 gw 10.184.yy.3 Now I would like my public IP routed via the gateway What is the good configuration ? …
Gilles
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openvpn ip pool exhausted

We have setup 3 OpenVPN servers (v2.4) in 3 different physical machines. They are all part of the same network. When a client (v2.3) is connected we want him to go on either one of the VPN servers by using the "remote-random" flag (each server…
Ane Kos
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Can a router be connected to a both a subnet and a subnet inside that subnet?

Can a router be connected to both a subnet 1 and a subnet 1.1 which is a subnet inside of subnet 1? For example, can a router be connected and sent packets to subnet 223.1.17.128/25 and 223.1.17.192/28? Thanks.
Caleb Bolton
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