Static IP From ISP On Windows Server With DHCP?
May 7, 2011
I have a machine with Windows Server 2003 running an Exchange Server in a office with 5 workstations attached. The server is being used for a basic outlook calendar across the various workstations, nothing major. Our current ISP provides us with a Static IP address. The party that installed and configured the server set it up to run the DHCP server on the server PC itself. As in, the machine running windows server is also running a software DHCP server for the entire network. THE SETUP: As of right now we have a wall port (internet access) with a cable running to a 8 port unmanaged netgear switch that has cables hooked up to the 5 workstations as well as the server itself. Pretty simple.THE QUESTION: How do I configure the ISP static settings on the DHCP Server portion of the Server PC? We may be getting a new ISP with a dynamic address OR a new static address. WHAT I'VE TRIED: I've tried configuring the IP address on the Server PC the way I would via the NIC adapter settings but it already has a internal IP address from the DHCP Server running on that PC so changing that was no good.
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Aug 22, 2011
I'm totally new to using Windows Server 2003 (or any windows server edition) but I do have a basic understand of networking. I have a machine with Windows Server 2003 running an Exchange Server in a office with 5 workstations attached. The server is being used for a basic outlook calendar across the various workstations, nothing major. Our current ISP provides us with a Static IP address. The party that installed and configured the server set it up to run the DHCP server on the server PC itself. As in, the machine running windows server is also running a software DHCP server for the entire network. As of right now we have a wall port (internet access) with a cable running to a 8 port unmanaged netgear switch that has cables hooked up to the 5 workstations as well as the server itself. How do I configure the ISP static settings on the DHCP Server portion of the Server PC? We may be getting a new ISP with a dynamic address OR a new static address.
I've tried configuring the IP address on the Server PC the way I would via the NIC adapter settings but it already has a internal IP address from the DHCP Server running on that PC so changing that was no good. I guess what I'm basically looking for is a screen like this (I hope you're familiar with the configuration pages of Linksys Routers) url...
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Feb 2, 2013
I used to use a CentOS self-made server for intranet for my little office, but I bouth few days ago a Cisco 861 router to replace the linux box.
1. I have 2 public IP classes from my ISP. 1 class is limitted to 80mbit upload, the other to 30mbit upload. So I need some sort of DNAT to be able to know exactly which intranet computer uses big internet and which one limitted internet.
2. I need DHCP server and with static IP addresses (one computer must always have the same IP address, etc).. i have my needs for this.
3. Also I need external access to some servers inside (web, ftp, etc) [code]
So far so good, all looks simple and I can achieve this in 2 hours on a centos linux box (correct routes, ip forwarding enabled and few iptables rules for NAT/SNAT/DNAT).
But on this brand new Centos router well, i'm not even successful in pinging the outside world, nor the inside world I'm tired of reading the forums, the documentation..i want (at first) a simple scenario: vlan+dhcp, fa4 with 1 public ip address and ACCESS to the real world. I wasn't able to achieve not even that much. [code]
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Jul 8, 2011
I just bought an e4200. I was using a LinkSys WRT54GS running DD-WRT alternative firmware.
One feature that I really liked in DD-WRT was the ability to assign static IP leases from the DHCP server. I liked having all of my devices running with a predictable, known IP address on my network. I have a Home Theater PC, and various controller applications that run on iPhones, etc. - some pretty homebrewed. Configuring the firewalls, etc. was much easier with IP address based controls.
Is there a way to achieve the same within the e4200's stock firmware?
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May 17, 2013
I upgraded my SG500 switch firmware to 1.3.0.59, since there is a new functionality DHCP server v.4 well I must say I came accross the issue I cannot solve. DHCP server assign dynamic address - no hassles. troubles start with static IP hosts.I defined a couple of hosts with static address within the correct subnet. I tried with hardware address and client identifiers. no luck. my switch does not assign the IP address I assigned to the suitable mac address. to define it I use both CLI & Web.
ip dhcp pool host HP-Elliteaddress 10.10.11.7 255.255.255.0 client-identifier 01:d8:d3:85:cf:09:72client-name HP-Ellitedefault-router 10.10.11.1exit
ip dhcp pool host VAIO-Zaddress 10.10.14.108 255.255.255.0 hardware-address 54:53:ed:1c:a1:46
default-router 10.10.14.1exit
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Sep 29, 2011
i am facing the same problem now but am using windows 2003 server
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Nov 11, 2011
I was trying to find if it's possible to add the option for static routes for DHCP clients on Cisco IOS DHCP config mode. I'm looking to add a settings as defined on RFC 3442, like this one, set on ISC DHCPd server:
Global settings:
option rfc3442-classless-static-routes code 121 = array of integer 8;
option ms-classless-static-routes code 249 = array of integer 8;
And for the subnet declaration:
option rfc3442-classless-static-routes 24, 192, 168, 30, 192, 168, 10, 1;
option ms-classless-static-routes 24, 192, 168, 30, 92, 168, 10, 1;
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Apr 13, 2012
i have new laptop and trying to vpn into office with static ip. and the rdp into work station. vpn connects fine although says iv6p has no network access.. and rdp will not connect
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Jun 17, 2012
I want to run my own web server. i have Windows 2008 Server R2. we hv one router for internet and it is linked with switch. 30 computer are running on local LAN and getting Internet. now my ISP give me a block of IP. i want to give it to web server. what is the simplest way to use that IP and my web server is Online and also all user have to access to Internet.
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Feb 22, 2011
i want to setup DHCP using my windows xp
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Apr 17, 2012
My Windows xp computer can't connect to the DHCP server correctly and thus can't connect to the internet. It is connected through an Ethernet cable to a wireless router. All other computers on the same network connect fine to the router, both wired and wireless.This all started after I left my computer alone for a few hours and came back with it not coming out of idle. After shutting it off and turning it back on, it would not connect to the DHCP server.It assigned me the autoconfig address 169.254.189.73 because it couldn't connect to the DHCP server. I even tried a static IP but even that wouldn't fix it. I have tried the same ethernet cable in another computer and it worked fine so I know that it is because of my computer.I have tried renewing and releasing the connection using ipconfig in the command prompt but that did nothing. The settings are all the same as the other computers running through the same router. I have tried shutting down all the other computers and reconnecting the trouble one but again still nothing.The last thing I'm not sure about is the network adapter driver. I have reinstalled it but I'm not sure if the driver is correct. I have an NVIDEA nforce 10/100 Mbps Ethernet adapter. I attempted to reinstall but I'm not sure I selected the correct generation when I downloaded the driver installer. My computer says nothing about the generation of the adapter so I just chose the newest generation. My adapter is integrated in the motherboard.
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Apr 16, 2013
I want to set up a domain for a file server and MS SQL 2005 server on my server machine and installed windows server 2008 in it.
Do I need to set up DHCP server and DNS on Windows server 2008R2 or leave them to the router to do the job?
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Mar 12, 2013
Today I installed the 1.0.2.6 Firmware on a RV180W. I only have now two problems regarding the Static DHCP support in the GUI.
1. Via the Networking > LAN (Local Network) > Static DHCP I have no buttons to Add a new static Lease.
2. Via the Networking > LAN (Local Network) > DHCP Lease Clients I can thick a Lease and click on Make Static IP. The result is an error: Operation failed.
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Jul 29, 2011
dhcp server failed while running network diagnostic test for windows xp
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Mar 27, 2012
I have trouble with a Cisco 892 Router from my Internet service provider.
Last week we switched from a virtual Router to a hardware Router. But after plugging it in our LAN Switch, the Windows DHCP Server stopped leasing IP's. I got many BAD_ADDRESS with MAC like e1:80:10:ac, e2:80:10:ac, e3:80:10:ac, e4:80:10:ac, e5:80:10:ac, ea:80:10:ac, eb:80:10:ac, ec:80:10:ac and so on.
I do not have access to the Router config, so I can not dump the config to you. We have a flat LAN, single SUB-Net(172.16.0.0/16) and no VLAN, no Spanning Tree. A Keep it Simple, Stupid(KISS) System.
A tech guy from service provider, is telling us, the error is not there fault and my switch is not correctly configured. But this is ********. For years we had a another Cisco Router from the precursor ISP and for 2 years the virtual Router from our current ISP. No trouble with my DHCP. But after plugging the new Router in, my DHCP stopped working.On the 892 is no running DHCP, but something interferences with my Windows Server 2008 R2 SP1 DHCP Server.
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Oct 1, 2012
I've got my AnyConnect setup to get an IP from our Windows DHCP server just fine. It grabs the IP, mask, and DNS just fine. But I can't ping any of the lan devices or do any DNS lookups. I need it to work this way since we have a ton of site-to-site's with remote offices and getting them all to adjust their firewalls to allow another subnet is a nightmare.
I have split-tunneling enabled. I'm sure it's a nonat command that I'm missing, but not sure what.
Before connecting to VPN:
Home user-------------------> ASA 5510 --------------> Office Lan
192.168.1.0/24 10.10.1.1/24
After they connect to AnyConnect
Home user-------------------> ASA 5510 --------------> Office Lan
192.168.1.0/24 10.10.1.1/24
10.10.1.45/24
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Dec 5, 2012
We have a 5508 controller authenticates with WPA2-enterprise to 3 possible AAA servers. Today I tried migrating our DHCP server from a Windows 2003 machine to Windows 2008 R2. Migration went smoothly and all wired clients could get IP's. Reservations intact, scopes intact, etc.. you name it. I though it was a great success.
Fast forward about an hour when people started coming into work for the day. Calls started coming in about their laptops not able to connect to the network. I double checked with a spare laptop in our IT department and also my iPhone. Same issue. Seems the only thing I changed today was the DHCP server (from 10.1.1.1 to 10.1.1.2).
After racking my head on it for awhile, I re-enabled the "old" dhcp server (10.1.1.1) and disabled it on the new (10.1.1.2). Instantly wireless clients were able to connect.
Am I missing some configuration step in the 5508 controller when moving DHCP servers? I do plan on running 2 DHCP servers (10.1.1.2 and 10.1.1.10) for redundancy once I get the primary one moved over and working correctly.
I want to decommision the older 2003 server. Its time to raise the domain functional level.
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Feb 7, 2012
I have a Blackberry Playbook and have come into a problem with it.I can't set a Static IP on it so would setting a DHCP Reservation in my Linksys E2500 router act as a static IP?
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Jul 5, 2012
I planned for my customer to replace his old LMS 4.0.1 server under Windows 2003 by a new server under Windows 2008 R2.Customer wants also to set a new LMS name and IP address for the new server under Windows 2008 R2 and keep both servers on the network.I'm wondering what could be the best procedure to do that migration.Can I used backup / restore procedure in that case ?If yes, what file must I modify to adapt the new LMS configuration to new hostname and IP Address ?
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May 28, 2012
For numerous reasons, I want to bind my DHCP clients to static IP addresses, but can't figure out how to do it in DD-WRT.
I've googled, but every link I click times out (for this specific search- my uplink is otherwise fine).
I know I can do it with hardcoded IPs, I'm just curious how static DHCP is done (and yes I am aware that Static is a contradiction in terms of DHCP. I want a given MAC to always get the same IP) and would like to have some info on this.
(call this reserved DHCP if you prefer... )
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Feb 5, 2011
I am having trouble connecting to the internet, but not my network, when I assign a static IP to my machine. However, when it's set to DHCP, it works just fine.
Pertinent info:
-I'm connecting to a Linksys WRT610N router via a wireless USB adaptor, Netgear WNDA3100v2;
-Service is Time Warner Roadrunner cable;
-There is no IP conflict as I've got DHCP range set from .200-.249 and this machine's static is .100;
-All the other devices in the house are on static starting with .101 up and they all work fine, both wired and wirelessly;
-Can see and connect to all devices in the LAN, including the router, but nothing outside
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Feb 22, 2012
I have my boss's (president of the company) laptop, wired LAN port, setup with a static ip so his laptop will bypass his company's web filter, and was going to let him use the wireless for home and travel. However, what if he needs to use his LAN port on a different network that doesn't support the ip's of our company's network? I need to see if there is a way, utility, or something that can be done to allow him to have a static ip assigned to that port and use DHCP (for when he is on other networks) so he can bypass the web filter.
I have a rule on the FW to allow his static ip to bypass the web filter. I have tried the alternate configuration inside XP and editing the registry to assign that nic dual ips, but I still get blocked on the filtered webpages. For now I have just emailed him the steps on how to switch it manually.
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Jan 21, 2011
My old office uses Cisco 861 as a VPN router, with the WAN side setup to receive a dynamic IP assigned by Time Warner cable. Now we switched to a new office, with TowerStream which provide 4G SLA'ed 10Mbit service with static IP, and I get a Cat 5 ethernet down from it.
So all I did, was to go my "interface FastEthernet4", and typed ip address 173.243.123.123 255.255.255.252.Changed speed to "speed 100" and "full-duplex" (as instructed by the ISP).
I also did "ip default-gateway 173.243.123.124", which is the default gate way assigned by the ISP.I also typed "ip name-server 64.17.123.123" to setup the new DNS, am I doing anything wrong? I can't even use the router to ping google, but if I connect the laptop directly to the outside line, then it works, so I know the outside line is good.
Why can't I connect to the internet? I wasted several hours already trying everything in my book to trouble shoot a supposedly very simple configuration change. Do I need to change something related to NAT when changing to Static IP? My NAT was working just fine before when under DHCP.
The below is my full config (some IPs changed to preserve anonymity):
=============================================
Building configuration...
Current configuration : 16628 bytes
!
version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
[code].....
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Sep 30, 2011
Can the DHCP server on an ASA be configured with static bindings like IOS routers can?
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May 6, 2012
[code]...
I am able to obtain IP addresses through the DHCP server for my clients and I am able to browse internet on the server 2k8.Server 2008 - Share Internet through DHCP server
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Aug 8, 2012
I have a Cisco 876 router running 12.4.(15)T5, configured as DHCP client. This works nicely.
A Cisco 886 router, running 15.1 software also works with the DHCP client. This also works but has the following strange beheaviour: In the running-config an ip route 0.0.0.0 0.0.0.0 <dhcp assigned address> appears. Also - some other static routes that are in the config using the dhcp keyword are duplicated with the dhcp-assigned address
Now - when a write mem is done, these dhcp-generated route entry's are stored in the startup-config...
This beheaviour is completely different and VERY unwanted. After a change from DHCP server the config will simply stop working, when a write mem was done at the first DHCP situation.
Should we stop using write mem commands when a DHCP client is active in IOS? Is it a bug? Is it a feature?
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Feb 25, 2013
Region : Australia
Model : TD-W8960N
Hardware Version : V4
Firmware Version : TD-W8960N_V4_130205_Beta
ISP : TPG
I have an Optus Home Zone (mobile cell tower) that requires ports open.
Port
123 UDP
500 UDP
4500 UDP
I have assigned the Home Zone a Static IP outside the DHCP range and set the above Ports on the NAT, Virtual servers to that IP address.
I have used nmap to scan the ports and it provides open/filtered status for all of them.
Here is the kicker for me, i use a DGN3500 netgear (which keeps dropping WiFi hence its replacement) and enter the ports and it works straight away. Un plug and put the Tp-Link and nothing.
I use Eset Smart Security, could that be the problem?
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May 19, 2013
I'm having troubles with this firmware in a SG300-28 switch. Actually the DHCP server, a new feature in this firmware release, doesn't work correctly. DHCP static reservations are not working: CLient ID and MAC address are not recognized correctly, and the DHCP server assigns the first free IP in the pool, rather than the reserved one.If Cisco engineers read this, plese correct the issue.
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Sep 9, 2012
My old modem from Roadrunner (Time Warner) died and the service man replaced it with a Arris TG852 modem/router. then my problems began. I would like to have the Arris modem act like a modem and not a router. The network governed by the DIR works fine but none of the clients can connect to the internet. Below are the steps I have tried.in both steps below, The DIR is connected to the Arris using the Ethernet not the Wan port.
1. I tried disabling DHCP on the Arris router and setting a static IP address for the DIR router. This worked for a bit and then quit. Some of the computers said there were duplicate IP addresses on the network. If fact the same IP address showed up in the DNS list of the Arris and the DIR routers.. even though the Arris router had DNS disabled.
2. After reading other forums. I enabled DHCP on the Arris and set it to passout IP address between 192.168.0.2 and 192.168.0.99. I then setup the DOR to pass out addresses between 192.168.0.100 and 192.168.0.200. then moved the DIR into the DMZ of the Arris. Still no access to the internet.
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Jul 30, 2012
I'm experimenting a strage issue with some AP1142 that prefer getting new IP from DHCP server rather than using the static ip already configured.
I've got more than a hundred of 1142 APs already conected to a 5508, all with static IP, all working fine for about a year.
As i installed 30 more AP, i enabled a dhcp scope on the controller to give IP to the new APs and when the new aps got registered i changed the configuration to static IP.
The problem comes when some of the older AP than have already static ip are gettig ip from dhcp scope.
If i look at my WCS, it reports that this APS are getting DHCP IP because they cannot reach the controller with their static ip. As this is impossible, because the static ip and the dhcp enable scope are in the same subnet in a layer 2 configuration and with the same gateway. (e.g: old AP 10.10.2.10/16; new AP(dhcp 10.10.3.10-50) 10.10.3.15/16; gw 10.10.254.1)
The problem comes when i disable the dhcp scope, all the older aps that got dchp ip from the wlc scope instead of using their staic configured ip are deregistered. If i reset every ap manually, from the swithc disabling PoE, they start to use the static ip and everything comes fine.
This is happening with about ten of fifteen APs from the 100 installed, that is the strange thing because this seem to be very random as the failing APs are installed in different building and connected to different switches.
As now i have disabled dhcp scope and all APs (old and new) have static ip everything is ok, but i will have to add some more APs shortly and every time i enable the dhcp scope on the wlc
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Jun 22, 2011
I have enabled DHCP but want to set static table IP's for my security camera DVR and one computer, the others can remain dynamic. I know in other routers I can attach a LAN IP to a mac address to keep it static but I can't see where I can do that with this router.
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May 31, 2012
i am not sure if this is something with my DHCP setup or not, but it certainly seems to be the culprit. I am running a 3560G and using it as DHCP and to do V LAN routing (Geiger protocol). I have 10 pools configured with a few static addresses per pool. Now to get down to the problem. I have a computer (and this problem seems to be a gremlin as it changes what computer is affected quite often) that will connect, get its IP, immediately disconnect, then send out a DHCP req again. The computer has a static assignment in the pool, and for the brief second that it connects, it gets the right address. If i move the computer to another v lan, all works right. If i delete the static entry it will get an address in the right v lan no problem. The command i have been using to add static entries is:
address xxx.xxx.xxx.xxx client-id 01xx.xxxx.xxxx.xx
That seems to have been working on all my static routes except for a bank of computers in vlan3. I have went as far as to delete the pool and recreate it, heck i even recreated the v lan and i am still having issues. Below are some snippets of the running config for review.
The DHCP Pool for the affected LAN:
ip dhcp pool Dev3
network 192.168.3.0 255.255.255.0
boot file bootx86wdsnbp.com
next-server 192.168.1.78
dns- server 192.168.1.8 192.168.1.78
[Code] .....
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Dec 18, 2012
I'm following a tutorial that 'dumbs down' the modem and lets me use the router for everything.
It asks me to set up a static LAN IP (10.x.x.x range) and edit the DHCP pool of the router. When I'm logged in to the routers admin, it doesn't seem I'm able to do any of this.
Earlier in the tutorial it also asked me to set up a static IP for the router, which I did I suppose.
I've added a screenshot of the admin panel, in case that's relevant.
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