A static IP address is assigned to a device on a permanent basis. The IP address is not expected to change frequently or at all. This addressing method is commonly used for servers and other devices for which the address must be well-known.

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DHCP addressing vs Static addressing for Servers

I'm having a "lively" debate with a work associate about the reasons for or against using DHCP on servers in a network environment. The network environment in particular is a relatively small network, ...
5
votes
1answer
122 views

Route traffic directly between nodes in a cluster

I apologize if this is a really dumb question. Objective Ensure that traffic that is meant to go between nodes in a cluster does not (inefficiently) go outside the cluster and then come back in, but ...
5
votes
1answer
1k views

Draytek Vigor 2820 static IP's

I have a Draytek Vigor 2820 router which is connected to our ADSL provider (British Telecom, BT). We currently have one static IP address which is accessible from anywhere outside of our network and ...
4
votes
5answers
3k views

hosting IP change, how much downtime to expect?

i'm moving my hosted site (same host) to a static IP, I understand there will be some downtime due to DNS caching - does anybody have any tips how to minimize this time and to avoid my users seeing ...
4
votes
4answers
362 views

Centos server keeps jumping to address instead of static assigned address

I have a headless Centos server that I've configured with a static IP address. I've disabled Network Manager, avahi-daemon etc. Whenever I restart the network it just jumps to 10.155.90.100 instead of ...
4
votes
3answers
464 views

IP conflicts with a networked printer

I have 2 computers (Mac with OS 9 and a desktop PC (XP)) that both print to a networked printer (large Xerox Phaser 7700). The printer and the two computers are networked through an old ethernet ...
4
votes
2answers
2k views

Find computers in domain with static IPs - PowerShell

let me start by saying I'm not good at all in writing scripts or troubleshooting them, thus me being here :) I'm trying to find all the computers in a windows domain network that are using static IP ...
4
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3answers
2k views

Setting up bridged LXC containers with static IPs

I'm trying to setup multiple LXC containers on a host, each with public static IPs of their own. My host is running the latest Ubuntu. It has a single network interface named eth0. The static IPs ...
4
votes
1answer
257 views

SCM8014 to FVS338

I have a SMC8014 Router/Modem that Comcast provided me with their business class service. It was not filtering malicious traffic as aggressively as I had hoped, so I purchased a NetGear ProSafe ...
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5answers
1k views

DHCP or static addressing?

I am in charge of a 70-computer, 50-user network distributed across two buildings and linked by a point-to-point line. We run Windows Server 2008 and so far we've been using DHCP to dynamically assign ...
3
votes
5answers
3k views

What router hardware or software should be used when multiple public IPs are routed into the same LAN?

I am looking for recommendations to replace a set of consumer grade (Linksys, Netgear, Belkin) routers with something that can handle more traffic while routing more than one static public IP into the ...
3
votes
6answers
640 views

Accessing IP restricted server from dynamic IP

Our servers (all CentOS) are all restricted by IP but often i am out and about and stuck on a dynamic IP address. Using a DynDNS widget I have set this dynamic IP to always sync with a DynDNS hostname ...
3
votes
5answers
427 views

Why is my eth0 getting a dynamic ip when it is configured to be static?

For some reason our office linux box is being assigned an ip address via dhcp and I don't know why. What is confusing to me is that when I check system-config-network it shows that my eth0 is setup ...
3
votes
1answer
910 views

EC2 and Static IP's (Elastic IP's)

I'm using an elastic IP for one of my EC2 instances. I can reach the instance via the elastic IP from external machines, but from other machines in my EC2 configuration, I can ONLY reach the machine ...
3
votes
3answers
5k views

multiple ssl sites with 1 ip address and different root domains

I'm running windows server 2003 sp2 with IIS 6.0. I only have one ip address (leasing a subnet is really not an option and i'd like to limit my use of the address space anyways), but need to run ...
3
votes
1answer
10k views

How to route public static IP to a virtual machine on a vmware ESXi host?

I have 5 static IPs from my ISP (Comcast) and I have a physical machine with VMware ESXi 4.0 on it that is hosting multiple virtual machines. Right now I am just using the default vmware virtual ...
3
votes
3answers
531 views

Utilizing multiple IPs provided by ISP

This is a bit complex so bear with me. I do have a pretty good working knowledge of IP but I'm looking for help on the best way to implement this. My ISP has given me a block of static IPs as well as ...
3
votes
1answer
421 views

Passing client MAC addresses to DHCP server over VPN

I'm tasked with implementing VPN access on a gateway. The LAN DHCP server is configured to assign the same IP address to a given MAC address. I would like to have this functionality for clients who ...
3
votes
1answer
2k views

Ubuntu 12.04 Server static ip configuration

I had some trouble getting the static ip configuration right for Ubuntu 12.04 Server. Every time I would restart the server the nameserver settings in /etc/resolv.conf would get overwritten by dhcp ...
2
votes
4answers
1k views

Connecting static IP device on switch

Lets say that I connect a device with a static IP in a switch. How does the switch know that there is new device connected? Does the device send an ICMP packet in order to tell that it is new on the ...
2
votes
4answers
249 views

Should I worry about my static IPs?

We currently have a range of 12 static IP addresses through our ISP that I believe are leased. Now that the IPv4 space is almost gone, should I be worried that our ISP (it's a Time Warner fiber ...
2
votes
2answers
2k views

Configuring multiple servers to share one static IP using subdomains

I'm looking for a way to access multiple servers sharing a single static ip by using different subdomains. As a forewarning, I've never gotten into network configuration before, so my knowledge of ...
2
votes
4answers
505 views

How to give static IP in the office and use DHCP at home

There is a laptop running Windows XP. When the computer connects to the Wireless network in the office it should have a static IP address (because it's used as a small DB server). When it connects ...
2
votes
1answer
192 views

server administration for 1U rack server placed in intranet: how to deploy web application and update the server without internet connection? [closed]

A MNC sales department hired my services as a software consultant to build them a web application. This web app generates excel files based on their internal business processes. This web application ...
2
votes
3answers
90 views

Static IP from some other ISP

I'm a You Broadband customer, to host a website I need a Static IP but with my chosen plan company doesn't provide me a static IP. They wanted me to buy a static IP. I had ready to do that but they ...
2
votes
1answer
4k views

Is it possible to give static IP to clients in pfsense

I am using pfsense and it provides an IP address to all clients. Is there any option in there so that I can define the client IP address based upon their MAC address, so that I can measure how much ...
2
votes
2answers
682 views

Register multiple static IP addresses ubuntu

I currently have 1 static IP registered on my server. I'd like to go ahead and register 4 other static addresses. I'm not sure of the syntax. Should I just do iface eth0:0 inet static? Here's what ...
2
votes
2answers
139 views

DHCP/static IP nomenclature

I've just inherited systems administration for a small network, on which we have exclusive access to the first 128 IPs on a private virtual subnet. We have a DHCP server which binds IP addresses to ...
2
votes
2answers
11k views

How do I combine static and dynamic DHCP leases on a Cisco router?

Basically, what I need is super similar to the unanswered cisco forum question below: https://supportforums.cisco.com/message/3139749#3139749 I have a Cisco 850 Series router. I have configured a ...
2
votes
2answers
4k views

Setting static IP on CentOS without system-config-network

Background information: I have a problem installing system-config-network. It appears it cannot find an update to sqlite (checks every mirror and comes back empty handed.) I have tried the skipping ...
2
votes
3answers
292 views

Detect alive IPs in an unknown static-IP based network

I ask just in case of curiosity and this is just an imaginary network Imagine an internal LAN network without any DHCP server implemented; So to access the network we should use static IP(s); But my ...
2
votes
2answers
2k views

Static IPv4 and dynamic IPv6 on same interface

I am trying to set up a CentOS 5.4 box to use a static IPv4 address, while getting a dynamic IPv6 address at boot time. I have only one interface, apart from the loopback interface, eth0. It has a ...
2
votes
2answers
138 views

Static IP in AWS but with possible Load Balance feature

I am playing a bit with AWS. My goal is to setup infrastructure, which will have static IP on outgoing connections (requirement from payment provider which solution has been implemented in our app) ...
2
votes
2answers
74 views

IPv4 private address assignment

I'm working on a private network which uses static IPv4 addresses as well as DHCP addressing for the physical LAN network. At a previous company I worked at they would assign static addresses in the ...
2
votes
4answers
3k views

VirtualBox - Public Static IP for a Debian Guest on a Dedicated Server

Goal: I want to run a Debian-squeeze-Guest in VirtualBox and give the guest it's own public static ip. I found tons of threads about this topic, but all in all I'm now trying for 10 hours (reading the ...
2
votes
3answers
1k views

Setting up our router to do NAT with multiple public IPs

we have a 5 public IP addresses. What we basically want to do is have a router(one single router) that will translate a static private IP so that it uses a static public IP(as in, NOT the gateway ...
2
votes
4answers
895 views

Multiple Static IPs, NAT and Comcast [closed]

We have just signed up for comcast business with 5 static IPs and have an internal private network. We are a small business and I am hoping that we can purchase a router/firewall that will simply ...
2
votes
2answers
1k views

Static IP but DNS server from DHCP (Can't use a reservation)

I need to assign the DNS servers to a Virtual Machine via DHCP, but I want the machine to have a static IP address. I cannot use a reservation and go through the usual DHCP process because the VM gets ...
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vote
3answers
2k views

How can I understand if an IP address is dynamic or static?

I have an IP list and I have to seperate them as static ones and dynamic ones. Is there any tool or way to do that? Thank for any advice...
1
vote
3answers
158 views

Getting a static external IP [closed]

I'm not even sure if this is possible. My external Ip changes about once every 3 days. How would I prevent it from doing so? I have to connect a domain to my IP and I can't give it a domain to ...
1
vote
2answers
103 views

Is there any harm to setting the same static ip for eth0 and eth1?

I'm configuring a Fedora server to use a static ip (although this question should apply to any Linux server). Unfortunately, I don't have much control over which of the two ethernet ports gets used. I ...
1
vote
5answers
2k views

How necessary is a static IP when running a webserver from home

I'm considering hosting at home not through a third party. Some of the content will be software that need to run reliably 24/7. Currently I buy the domain then redirect it to the IP of my webhost, so ...
1
vote
2answers
106 views

What kind of internet connection and network setup do I need for hosting a web app

I am starting a web app company that will be hosting a social application on our own servers. We will be getting a fiber connection with a static IP address but I was wondering if there is anything ...
1
vote
2answers
1k views

interfaces/static IP problem - Debian

I'm trying to configure my Debian machine (Lenny) to use a static ip address. Here's what my interfaces file currently looks like: # This file describes the network interfaces available on your ...
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vote
5answers
6k views

configure that /etc/resolv.conf won't be modified after restart

I have Gentoo Linux amd64 installed on one of my computers. I have a static IP configured at /etc/conf.d/net: auto_eth0="true" config_eth0="192.168.1.2/24" routes_eth0="default via 192.168.1.1" ...
1
vote
2answers
280 views

How to forward static IP to the server computer in the LAN

We want to have an office server, we already have static IP. But the thing is that we need to have following structure: ISP Modem Router Server Wireless router Also I'v tried ...
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vote
2answers
3k views

Should my dedicated static IP address point to my domain?

I purchased a dedicated static IP address from my hosting company to host my domain name. The IP will point to me domain when I ping it. However, when I conduct reverse DNS lookup, my dedicated IP ...
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2answers
3k views

How do I setup a public static IP in Ubuntu 9.10

I have an Ubuntu 9.10 server and I need to setup a static public IP. Our office already had a network setup by Cisco, so the router is configured to forward the requests to the server. Here is the ...
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vote
2answers
34 views

fail2ban with static IP

Is there any point to running fail2ban to protect your SSH connection if you connect from a static IP? As far as I can see having fail2ban running means that you effectively open up port 22 to ...
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1answer
1k views

Shouldn't we exclude a static IP from the DHCP pool?

In my office, I have a printer with static IP 192.168.0.254/24. Normally, it should be excluded from the DHCP pool in the router. So I just set the DHCP pool to be in the range of 192.168.0.2/24 - ...