Dynamic Host Configuration Protocol (DHCP) allows computers on the same network to automatically obtain a unique IP address.

learn more… | top users | synonyms

1
vote
2answers
147 views

How can I know the DHCP settings offered by a server?

I want to debug a router that is giving strange DHCP settings, but I don't know how to check it without having to make my system take all the configurations. Isn't there a utility that returns all ...
0
votes
0answers
149 views

can't obtain ip-address from my dhcp

I can't obtain a ip-addres from my dhcp-server and it's going trough a firewall (pfsense), The firewall(pfsense) and DHCP server are two virtual machines on my physical server(ESXI). As rules i use ...
4
votes
1answer
2k views

Can't get IP on Windows 7 after extensive troubleshooting

My Windows 7 system is not able to pull an IP from my router's DHCP. This just started a few days ago, and I've done quite a bit of troubleshooting. Here's what I've tried in roughly chronological ...
0
votes
0answers
22 views

Create a Home Network for File Sharing and access Internet at the same time

I have 2 hosts A (Windows) and B(OSX) with a couple of mobile devices in my network. When I enabled File Sharing on my hosts, I noticed that their IP's keep on changing which is annoying sometimes. ...
2
votes
1answer
34 views

DDNS in BIND9 with custom records

I have BIND9 and DHCP configured to communicate with each other for providing DDNS in my network but I need to also setup custom records as some machines need to respond to more than one hostname. ...
3
votes
2answers
333 views

DHCP and 169.xxx.xxx.xxx [duplicate]

I have been seeing this a lot at work and at home. At home, a single device will not obtain an IP from the DHCP so it self assigns an IP in the 169.xxx.xxx.xxx range. If I put in a static IP it works ...
0
votes
1answer
223 views

Wireless to Wired Bridge with Bonjour Service Clients

I want to create a wireless to wired bridge on my rasbian powered Rasperry Pi to connect my DVB-T box to the network. The DVB-T box sends the signal into the network using Apple's bonjour service. To ...
3
votes
1answer
315 views

In Windows 8, How do I make a static IP for each network?

I would like to have it so that my computer sets its IP address statically depending on which network that it is connected to. I have 3 Networks that I regularly use and it seems that with Windows I ...
0
votes
1answer
322 views

Stop DHCP services on Linux - Ubuntu

How do I stop DHCP services on a particular ethernet port in Linux ? I was trying to take full control of an ethernet port of my computer to inject packets into the device plugged into it without ...
0
votes
1answer
378 views

Router's DHCP not working after a Windows machine is connected

In my office, there are several computers that are connected to a router/access point. Everything was fine until my wife came in with her laptop. It's on Windows 8. Sometimes, other computers cannot ...
2
votes
4answers
2k views

Can I Chain Two Routers Together Keeping DHCP on Both?

I have read that I can connect a second router by turning off DHCP and NAT, but I want the second router to assign DNS (I'm using it as an access point for my kids, and will use OpenDNS family service ...
0
votes
0answers
613 views

How to fix DHCP giving out numerous bad addresses

Where I work we have run into a major issue a few times in the past month. Our DHCP server will randomly start filling up with BAD_ADDRESS. We have 3 sections in the subnet. (4.x, 5.x, and 6.x) Aside ...
0
votes
1answer
1k views

Find out dhcp assigned gateway and dns settings in Linux (CentOS)

How to find the gateway and DNS IPs in a DHCP configured network in CentOS? I'm using CentOS installed in vmware using NAT connection and I want to make the ip static.
0
votes
1answer
276 views

ASUS RT-N10 router and a 8 port wireless switch to make a network of 10 PCs

I need to set up a 10 PC network for playing games and sharing files. We all use windows 7. I've heard that if I connect a switch to a port on the router and others to the computers then the ...
4
votes
3answers
435 views

Network is not connecting after startup automatically in Windows

After some perturbations with network drivers now I have a situation where the network is not connecting automatically after the boot-up. It indicates, that the connection is limited or no ...
0
votes
1answer
239 views

Separate DHCP scope for domain/non domain computers Windows 2008R2/2012

Is there a way that DHCP role in Windows Server will be giving a different settings (in this example different primary DNS server) to computers that are a part of Windows domain, and computers that ...
0
votes
0answers
59 views

VPN failure after ISP switch

We are a small library and are trying to switch our ISP, but after the switch we have VPN and SIP failures. We have a DSL modem set up in bridge mode, we have a Juniper firewall, and Windows Server ...
4
votes
1answer
1k views

Wired connection periodically disconnects requires ipconfig /release and /renew to reconnect

I just got back into University and after a day of using the internet I suddenly was unable to visit other webpages even though I was still able to chat. I restarted the computer and the internet ...
0
votes
1answer
133 views

Home Router (DD-WRT) and using DMASQ for a host via dynamically assigned via DHCP

I have a home Home Router (DD-WRT) and I want to be able to look up machines via hostname. However, I would like to do this with machines where the IP Address id dynamically given via DHCP. Example ...
1
vote
0answers
138 views

Windows 7 RNDIS client sends REQUEST without DHCP server IP

My linux based board is running a DHCP server on USB0 port to assign a fixed IP to the connected RNDIS client. When I connect Win XP or Ubuntu machine with this board, host machine gets the fixed IP ...
-1
votes
1answer
612 views

Windows 8 : Force a static IP adress only for a specific network

I am a developer. I need to have a static IP adress when I'm at my office, and would like to use my DHCP at home. Making a reservation on the office's DHCP isn't possible (the router they have ...
1
vote
2answers
3k views

Android Not Resolving Internal DNS on Home Server

I have a home network with a Ubuntu Server that handles all DNS and DHCP requests (I have disabled these services in my wireless router). My DHCP server (ISC-DHCP-Server) hands out IP addresses to our ...
-1
votes
1answer
418 views

Is it possible to connect to routers configuration if your DHCP is disabled?

I have a router and when I turn the DHCP off I can no longer connect to the configuration page. Is there a reason that I shouldn't be able to connect or is the router broken? If I am doing something ...
0
votes
1answer
116 views

Computer connects to the wrong router

I have 2 routers connected together and multiple computers connected to each router. (see image) The problem is that when I connect a computer to Router 1 and let it get the IP automatically, it ...
0
votes
0answers
460 views

Can't access domain shared folder by name but I can by IP

I have computer with windows server 2008 r2 and a router works as dhcp server. I created a domain on the server and I created users. I made the clients access the network via new users of domain then ...
1
vote
2answers
196 views

How to use DHCP with manual address in Windows?

In OS X there's an option for use DHCP with manual address: is there any way to do that (or something similar, with any program) in Windows? image: http://i.stack.imgur.com/Lyn0b.png Here's my ...
0
votes
2answers
210 views

DHCP Reservation vs Mac address filtering. Are they the same security?

I am able to give an ip address to a wired/wireless device based on the mac address. Other automatic DHCP is turned off. Is this as effective as a security measure as MAC filtering? It just seems ...
1
vote
0answers
55 views

Two wireless extenders with same mac address…How to assign IP address dhcp

I have two wireless extenders, and they both have the exact same mac address (same make and model) Now, they work fine in the network, I just wanted to know how can I assign them specific IP ...
0
votes
1answer
439 views

Using Macbook pro ethernet as a DHCP server

I'm developing an arduino project with an Ethernet shield. In order to simulate that the arduino is connected to a router i simply want to make the Macbook act as a DHCP server and give the IP to the ...
1
vote
2answers
578 views

How to configure my 2 router to make them as access points

I have this broadband and the main wireless router: Main Router Also I have two other routers and would like to make them as access points. So All with the same SSID, then the device can choose the ...
0
votes
0answers
201 views

dhcp static assignment doesn't clean bind after DHCPRELEASE

I've got a set of virtual machines inside VirtualBox on a OSX host. My Gateway-VM is Ubuntu 13.04 with 4 NICs. On this machine ISC-DHCP-Server and Bind9 are running and DDNS-updates work fine when ...
0
votes
2answers
67 views

Why APIPA doesn't work with multiple network adapters?

I connected 3 cameras to 3 network adapters in my PC. I don't have DHCHP, so I thought APIPA will do the work. But, camera's installation guide says "If a PC is equipped with multiple network ...
0
votes
2answers
68 views

how to know what computers are connected to an AP?

The access point doesn't have DHCP enabled, so I can't look the DHCP table. Is there a way to ping an IP and know what AP is using? Edit: I know what IPs are on the network using nmap, but when I ...
1
vote
1answer
339 views

Ping retrieves an IP from DNS, but loses all packets

I'm working with a minimal installation of RHEL 6. When I first turned this machine on, it couldn't ping anybody. It turned out that I needed to add the GATEWAY under /etc/sysconfig/networking and ...
0
votes
0answers
102 views

Bypass bug in router's IP address assignment

I have an laptop running Ubuntu connected to my home network. My home network connects to the outside world through a NETGEAR CG3000 gateway that acts as a DHCP server. My laptop normally uses a ...
0
votes
0answers
38 views

Why does dhcpcd exit immediately on carrier loss?

I have noticed that on every server of mine, with different ISPs, the dhcpcd process always exits immediately on carrier loss. I am confused because a carrier loss should be quite common on ...
1
vote
0answers
107 views

Setting up VPN on Centos with router doing dhcp

I've successfully setup PPTP VPN on my CentOS 5 server and can connect to it. I've set it up to use the IP range 10.0.1.50-60 and this works and we can ping each other but from what I can tell these ...
-1
votes
3answers
2k views

How can I put two wireless routers on the same subnet? [closed]

I have two Netgear wireless routers; one primary (WNR2000) connected to the Internet, and a secondary (WNR1000) connected to the primary via a long Ethernet cable to the other side of my home. A LAN ...
0
votes
2answers
807 views

how can i assign a static ip to just one device on my home network

EDIT: just found the answer myself by looking under 'Address Reservation' I want to assign a static ip to my android phone on my home network The other devices ipads, other computers, etc it doesn't ...
0
votes
1answer
555 views

Wireless access point won't allow more than 1 connection

We have a Netgear WGT624 set up as an access point to provide wireless access on our wired network. The wired network has one PC acting as a DHCP server and internet gateway - the WGT624 is set up ...
0
votes
1answer
192 views

OS X Server keeps DHCP DISCOVER even with no client in the net. how to stop?

I have trouble with DHCP release, this server keeps NETBOOT or DHCP DISCOVER even if the specified device was logged out, and its wlan modul is tourned off. Wich leads me to - that the server is ...
3
votes
1answer
4k views

How to run a DHCP server on an ethernet port of a MacBook successfully?

I aim to have an ethernet switch on my MacBook ethernet port from which I will have several Raspberry Pi's connected getting their IP via DHCP, each will have a VNC server running on them for remote ...
1
vote
1answer
376 views

DHCP error while WinPhone8 emulator is starting

I had a Windows 8 PC with a perfectly working WinPhone8 emulator. A few days ago my OS broke and our IT guys reinstalled Windows 8 in identical configuration. I installed the WinPhone SDK and tried ...
1
vote
0answers
194 views

Extending Wireless with two Edimax 7416APN repeaters from BT Home Hub 4

I've been attempting to extend my wireless network for the last week or so using the well reviewed EDIMAX 7416APN repeaters. Here's the setup I have now: [BT Home Hub 4]---WIRED--->[1st EDIMAX ACCESS ...
0
votes
2answers
57 views

cannot connect to DHCP server

I have the following network setup: A fiberoptic router (provided by service provider, no wireless functionality) -> to a wireless Linksys router (to get wireless coverage at home) -> to Switch 1 -> ...
1
vote
2answers
1k views

Computer gets IP from DHCP server but has no internet connection

I've installed an isc-dhcp-server on Ubuntu 12.10 and I'm trying to setup a DHCP server on a head node for six worker computers in the local network. The head node itself is a DHCP client receiving ...
1
vote
2answers
177 views

How does network bridging work in a VM?

For example, I have VMware Workstation which is on a host, host, and a VM running under VMware, zeddicus. Basically I understand in a normal network you plug a computer into the network (or wifi), get ...
0
votes
2answers
98 views

Alternative to a static lease/ip reservation

I used to have routers which allowed to make ip reservations based on MAC. But my current router doesn't have this option. What is the alternative for that? Why do I need it? I have a Debian server ...
0
votes
1answer
143 views

DNS server returns valid IP, but browser can't find server?

OK so I have my Raspberry Pi running a DNS server (dnsmasq), and I have my router set up to use it as the DNS server for the whole network. This was working perfectly until a few hours ago when I ...
0
votes
0answers
116 views

Does Windows internet connection sharing support DHCP reservation?

I have a rack full of computers connected to the internet via internet connection sharing (ICS) on one of the Windows 7 machines. Two Axis IP cameras are connected to the rack. Each time the system ...