Dynamic Host Configuration Protocol; allows computers on the same network to automatically obtain unique IP addresses and other network configuration parameters.

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5
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2answers
4k 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
383 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
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0answers
208 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
1k 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
7k 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
vote
1answer
260 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
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0answers
698 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
600 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
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2answers
362 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 ...
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0answers
65 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 ...
1
vote
1answer
5k 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
2k 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 ...
1
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0answers
458 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
108 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
93 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
996 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
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0answers
171 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 ...
1
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0answers
152 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
6k 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
2k 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
1k 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
352 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 ...
6
votes
1answer
9k 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
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1answer
618 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 ...
0
votes
2answers
62 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 -> ...
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vote
2answers
3k 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
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2answers
577 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
155 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
241 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 ...
1
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0answers
205 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 ...
5
votes
4answers
10k views

Creating WiFi Access point on a single interface in Linux

I am trying to create a WiFi hotspot or an access point on my Linux laptop. I am using Opensuse Kde 12.3. I found out a software called hostapd which lets you create hotspot but it requires two ...
1
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3answers
2k views

Setting up DNS server inside network

OK so here's a little problem I have: I'm trying to set up my Raspberry Pi as a DNS server (for filtering and caching). The Raspberry Pi is in my network, and has a DHCP IP from the router. The DNS ...
1
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1answer
341 views

If I configure a DHCP server to give a specific MAC address a specific IP, can I (safely) manually configure the device with a static IP?

I have a device which doesn't have an option to pick up an IP address via DHCP. If I configure my DHCP server to give a specific IP to the MAC address of that device (effectively reserving that ...
1
vote
1answer
4k views

Running a DHCP Server on DD-WRT in “Repeater Bridge” mode?

I am currently running a Linksys WRT160N router on DD-WRT set up as a "Repeater Bridge". It currently serves to rebroadcast my Virgin Mobile MiFi's WiFi through this router, hence broadcasting a more ...
0
votes
1answer
167 views

how to setup linux-igd to use webserver on same machine

So I have a web server on port 80 and linux-igd/upnp running on the same machine using dhcp. I want to configure linux-igd to be a way to get to the webserver. I found this tag in the linux-igd xml ...
3
votes
1answer
3k views

How can I determine the IP addresses allocated by DHCP on a router that I'm connected to?

This "router" is not a typical situation. I'm using my phone as a hotspot and can only configure a select number of DHCP options. I can manage the limit on how many devices/clients can use my phone ...
0
votes
2answers
4k views

How can I fix this conflict between my wired and wireless network connections?

I have two working network connections: One connection is for a wired ethernet card adapter and the other is for a wireless usb adapter. Both connections work fine when used separately, but when ...
0
votes
1answer
355 views

Router “ghost” connections

My Linksys WRT54GS2 V1 has begun to display ghost wired connections in the last weeks. As you can see from the images I have nothing connected except for the power cable. I have tried a hard reset ...
0
votes
1answer
671 views

Setup two routers where non-Internet router provides DHCP

I have two expensive routers that both have issues and I think I can use them together to fix all of them. Why I have a Belkin Play router, that starts to slow down my Internet after some time ...
1
vote
1answer
140 views

Configure WiFi router DHCP to assign IPs outside of subnet?

I have a slightly unusual issue with configuring a Wifi router on a shared office space network: We have a single ethernet connection to a building wide router A and we want to run a WiFi access ...
0
votes
0answers
90 views

Strange Networking Setup — Two ISPs to one household

I have an interesting networking problem that I am trying to solve. I have two ISPs into my household. I have Verizon DSL, which I use as my primary connection to the internet. I also just got Time ...
0
votes
1answer
176 views

How can I connect a wireless access point to an existing network (with a proxy)?

im new here, hope you guys can help me out. i was tasked to do the network (wireless and wired) of our new department in our company. our existing network has dhcp server(Windows Server 2003) and a ...
4
votes
2answers
4k views

Possible to ipconfig release/renew for only one nic?

I've got two NICs in my Windows 8 Pro (x64) box each connected to different networks. I would like to release and renew the DHCP lease for just one of the NICs. So far I can't find any way to do it ...
0
votes
2answers
478 views

Set up internal DNS to point to that DNS server?

I have Windows Server 2008 running on my network with the following properties: Internal IP: 192.168.1.100 External IP: 242.24.124.12 Now I have registered a domain (example.com) and have it ...
0
votes
1answer
782 views

CentOS DHCP server failover won't give out leases

I have followed this tutorial: http://www.madboa.com/geek/dhcp-failover/ However, I can not seem to get a lease at my windows client. I have set both servers (CentOS 6.2) in virtual machines, ...
1
vote
1answer
5k views

How can I tell DD-WRT DHCP to assign same IP to the same device?

I installed DD-WRT mini image on my router. I have a board that gets rebooted a lot(development device). It is very frustrating that my board keeps getting different addresses every couple of reboots. ...
0
votes
1answer
480 views

Windows doesn't send DHCP Request after DHCP Offer

I'm just at a friends place and we have problems with the WiFi. Scenario is, there are (about) 8 Android devices, all without any problems logged in to the WiFi and connected to the internet. Also, ...
0
votes
1answer
76 views

Three routers behind eachother in the network; port-forwarding and wifi

I have setup the network throughout the house, but it is quite complex and often fails somehow. router #0 (192.168.0.1) which is also the modem and has incoming connection router #1 (192.168.1.1) ...
0
votes
1answer
66 views

DNS Server for my home netwoek

I have a number of virtual machines all running on my ESXi host. These all connect to my home router, and are assigned an IP address through DHCP. When I go to connect to these VMs, they frequently ...
2
votes
2answers
2k views

How to get both IPv4 and IPv6 dynamic address

Running dhclient gets me an IPv4 address. Running dhclient -6 gets me an IPv6 address. And the man page says you can't combine v4 and v6. So how to get both v4 and v6 addresses at the same time?