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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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Hardware won't respond to each others ARP requests

I have two pieces of hardware (embedded devices) that I have setup to communicate via TCP over Ethernet in a client/server fashion. The topology of the network is as follows: ----- | S ||=|== Debug PC (w/ Wireshark) 192.168.10.41 | W ||=|== Hardware…
Ryan R
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Can I divide a /28 network into two /29 networks?

I have a 192.168.1.64 /28 Network Can I divde this network into 192.168.1.64/29 and 192.168.1.72/29 ? My Question is related to the fact that now the "network address" (192.168.1.64) of the /28 is shared also by the 192.168.1.64/29…
Markus
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How do I set up my new webserver using apache?

I'm making a private web server, but I can't get it to work. I'm running CentOS. I installed apache and verified that it's running. I set up httpd.conf according to online tutorials (mainly this one ) I called my ISP and they assure me that they do…
Luke Davis
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HTTP service and local IP addresses

If I am binding a http service to 192.168.1.2, will it make additional requests to my router in order to determine what my local IP is, or it will compare the IP to the local network configuration and if they match going nowhere? Also why i can't…
Somebody
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Unknown IP-address shows up in access.log

I am setting up a production environment on my VPS for a Rails app I'm working on. I have not registered a domain name yet, so what I did was just edit my local hosts-file manually. This works fine for testing purposes. Using Phusion Passenger I log…
Bram Jetten
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Cisco Pix how to add an additional block of static ip addresses for nat?

I have a pix 501 with 5 static ip addresses. My isp just gave me 5 more. I am trying to figure out how to add the new block and then how to nat/open at least one of them to an inside machine. So far, I named a new interface "intf2", ip range is…
Scott Szretter
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Getting started with vmware vSphere

I am just getting started with virtualisation after being pointed towards it via another question on SF. I have installed vmware vSphere on one of our servers (HP ProLiant DL360 3.0GHz, 4GB RAM, 70GB HDD in Raid 1). I have a few questions regarding…
dannymcc
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How do you get the IP addresses of KVM guests that are using a Bridge Network Device from the KVM host

Does anyone know of a way using KVM to find out the IP addresses of KVM guests that are using a bridge interface (br0) through the KVM host? Currently I have br0 setup with a single NIC (eth0) included. The KVM host is a system running CentOS 5.6 in…
slm
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Suggestions on routers that would meet my requirements?

From my ISP I am getting one RJ45 Port from the Modem. One IP adress is advertised by DHCP, but beside that I have an IP range I need to use for servers. On the primary IP adress that is advertised by DHCP I need a router that connects hosts to the…
The Shurrican
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Check if a specific IP address exists on local NIC

I'm looking for a simple script or batch method for checking the existence of a specific IP address (being moved between machines via NETSH) on the local network card. I need to start up certain services / apps etc ONLY if the specified IP address…
Codmental
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Users from my ISP's IP range can't hear my radio stream but others can

I'm streaming a radio via Shoutcast server from a PC in my office and ppl from around the world can hear it in browser or via wmedialayer/winamp, but people from my ISP (including me when I use outer IP) can't, a stream simply can't be opened in…
spc
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Changed static IP on a DC by mistake and can't log in to change it back

I made a goof. I was in RDP and checking out the network settings on one of my domain controllers (Windows Server 2003 SP2) and I accidentally changed the static IP to a different subnet, and poof lost my RDP. There are no accounts set up on it that…
NCX001
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Which cloud services allow layer 2 link level connections between servers?

There are advantages when you can deploy one server A so that it serves as the IP gateway for machines B, C, and D. In a real machine room, for example, A can balance incoming customer connections by forward packets to B, C, and D without even…
Brandon Rhodes
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DoS Attack from china and other supicious contry

My website is under attack. In this last 2 days I have identified and blocked ~20 IPs especially from China (and Taiwan, Malaysia, Egypt, Ireland, Spain and Russia) This are some of the 20…
dynamic
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IP's requesting long gone files

I released an app almost a year ago that worked by requesting data from some php scripts on my server. That app no longer does this and the php files have been removed. Yet several people still have the app running and my server gets several hundred…
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