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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can i run DHCP server on virtual interface? (Linux)

Can anyone plz help me to figure this out. I have a redhat system, it has one interface eth0 and on same i have configured vlan eth0.10 (192.168.0.254). I want to run DHCP server on eth0.10 so that ...
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1answer
6 views

DD-WRT sends itself as the DNS server to DHC clients

I'm using DD-WRT on my router (version DD-WRT v24-sp2 (12/11/14) mega). WAN is configured to have static IP and LAN is configured to have a DHCP server provide addresses/DNS, etc to clients. All of ...
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1answer
29 views

Change DHCP IP Pool Starting Address

How can I change DHCP IP Pool Starting Address from 192.168.1.xxx to 192.168.10.xxx?
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1answer
63 views

Two routers, same network, different SSID and password

I have a question about router configuration that I haven't really found an answer to. What I have: SSID: House A: A ZyXEL DSL-modem (660 Prestige) with built-in WLAN and DHCP-Server. IP: ...
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1answer
18 views

Tomato firmware with separate DCHP server

I've got a Tomato router which works wonderfully, but I've also got a Windows server that I would like to use as the DHCP server instead of the Tomato router. I know that I can configure each client ...
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17 views

Java permissions & CLSID for an Agilent 34980A multiplexer unit

I am using a 34980A unit as a multiplexer, that requires Java to view the multiplexer switches through an Internet browser. To operate the instrument I have to be offline and use DHCP, to enable the ...
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2answers
44 views

Specific ip settings for different wifi access points

I have a situation where I want to connect a tablet to two different networks, not simultaneously but switching from one to the other (and at different locations). The tablet is running on Windows ...
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21 views

Netgear WNCE4004 Wifi Adapter Connection Trouble - Static IP Issue?

Here's my situation: I'm in the military and live in an accommodation block where internet is provided by an unprotected wifi network (I'll call this 'service wifi'). To get internet access, I login ...
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12 views

ddclient updating to public IP instead of private IP

This is the antithesis to question 389125 I have private services (apache, ssh, synergys for example) accessible on a desktop on the local network. This is not with centralised login (ldap/AD for ...
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1answer
47 views

How does client know which wifi router to use?

I have two questions regarding my home network. It is currently set up as follows: Cable broadband -> NetGear CG3000v2 Modem (ssid:WIFI0) -> eth -> TP-Link WDR3600 (ssid:WIFI1) -> Netgear Router2 ...
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1answer
35 views

How can the DHCP routers option work if it's my own IP address?

I'm setting up a T-Mobile USB 4G data modem on Ubuntu 14.04 and I'm not making sense of the DHCP lease that T-Mobile gives me. Specifically, the value of the "option routers" is identical to the ...
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36 views

DD-WRT to push alternate Name Servers to clients over DHCP

In order for WiFi DHCP clients to use directly 8.8.8.8 and 8.8.4.4 as name servers, DD-WRT has been configured as follow add dhcp-option=6,8.8.8.8,8.8.4.4 in /etc/dnsmasq.conf (reboot) since that ...
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31 views

Use ADSL modem as router only, with ethernet input

Now here is the situation, I got a Fibernet internet connection. The modem is available outside the house and I only get an ethernet cable as an input I have a D-Link DSL 2750U modem + router. It has ...
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29 views

How to set up Networking and DHCP in windows server 2012 inside VirtualBox?

Background: Three operating systems are installed inside VirtualBox: Windows Server 2012 R2 Windows 8 Pro Windows 8 Enterprise So, I want to set up the Server 2012 R2 as Domain Controller, DHCP, ...
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1answer
34 views

Network Config (Alcatel GPON (I-241W-S) & TPLink TL WR1043ND)

I have a fibre to home internet solution configured at my place, the Alcatel GPON receives the fibre cable and a LAN cable is fed from it to the TP Link router where the ppoe connection is etablished ...
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14 views

dhcpd3 not reusing IP for mac

I have an ip range with two ip-addresses defined as follows in my dhcpd.conf: subnet 192.168.1.0 netmask 255.255.255.128 { range 192.168.1.10 192.168.1.11; default-lease-time 600; ...
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1answer
37 views

Can I make my Router (DD-WRT) act as DHCP server for an unmanaged switch that is not connected to it?

+-------------+ +----------------------+ | | | | +------------+ | Cable Modem ...
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24 views

How does DHCP work when it's not “between” your modem and devices?

I've been looking into different options for running some services on a home server. One such option is Amahi. During the setup process they recommend shutting off any other DHCP server on your ...
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17 views

Domain name is not appearing in “work network”.Instead it displays “Network 9” [duplicate]

I have configured isc-dhcp-server and provided a domain name "anbu.com" along with the IP addresses and other details. My Windows 7 client got its IP address from the DHCP server. In the Network name, ...
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15 views

Prevent Windows Server 2012 from using DHCP-provided default gateway? [migrated]

How can I prevent Windows Server 2012's local network connection from using the default gateway provided by a DHCP server? I do not control the DHCP server so the solution must be implemented on the ...
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5 views

Cisco 1131AG: Wireless clients randomly unreachable

I have a weird issue with my 1131AG-E-K9. I set up a lab at home to get back into the topic after a few years break. My 1131AG is connected to one of the PoE ports of an ASA5505. Clients are 2 ...
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37 views

Split current network installation in two Vlans

here I got a (really) tricky problem In my home I have a basic router from my ISP and the DHCP Server that serves every mac address with a static IP in this configuration : Family devices : ...
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1answer
101 views

Network interface configuration on Debian 6 (No DHCPOFFERS received)

I am trying to configure an interface to allow internet connection on a home server which runs Debian 6 x86. The server is behind a router which has DHCP enabled. The router IP is 192.168.1.1 with ...
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1answer
43 views

Internet access without NIC card?

If have a USB modem dongle for INTERNET connection. Can i access INTERNET from a brand new desktop/laptop without NIC card using this dongle? I feel that the dongle is just a modem ( with a DHCP ...
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67 views

Windows 7 DHCP flooding server with requests

Am attempting to connect a Windows 7 laptop to a Debian server running dnsmasq. The Windows 7 machine doesn't seem to like the DHCP info it's getting as it re-requests it every ~10 seconds. The log ...
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1answer
30 views

Unable to Set up DHCP and TFTP on Ubuntu

I want to transfer my kernel image to beaglebone black, and the guide mentions that I should have already set up DHCP and tftp on the host machine. I have set up the TFTP using: sudo apt-get ...
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1answer
50 views

How to setup this home network to allow connection between two subnets?

I have my home network currently set up like this: The Thomson router (192.168.0.1) is from my ISP and is pretty crappy. I have a much better Draytek Vigor 2820vn router that allows me to use ...
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1answer
26 views

Why doesn’t Windows Vista get an address from the DHCP server?

My Windows Vista PC does not get an IPv4 address from the DHCP server; viewing the network properties shows something (likely the DHCP request) being sent, but no packets being received. Manually ...
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1answer
27 views

DHCP with SOHO Routers turned off with DHCP Server

I am trying to learn some networking right now. I currently have a DHCP service running on my SOHO CISCO Router. If I turn off my SOHO's DHCP service and setup DHCP on a physical ...
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30 views

DHCP configuration for local DNS server

I have a server at home with several other computers/devices using DHCP to connect. The DHCP service is provided by the router. My ISP gives me a dynamic IP address so I use no-ip to get a fixed DNS ...
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38 views

Arch Wifi - Connects but doesn't stay connected

Arch x86_64 (plain install on mSATA via USB) Linux 3.17 NetworkManager DHCP enabled at boot via systemctl Generally, the host computer is a Surface Pro 1 w/ Marvell Avastar Wifi Card and connected to ...
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1answer
47 views

What could be disturbing DNS lookup on the local network?

Three windows computers setup to use hard coded 8.8.4.4 and 208.67.220.220 as DNS servers are not experiencing any problems. These servers were found using the DNS benchmark utilitiy found here. ...
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1answer
75 views

Windows Server DHCP role not working correctly in VMware Player

I've got a Windows Server 2008 running in VMWare player with the following roles: Active Directory Domain Services DHCP DNS The server is using the following credentials: The IP of the (DNS) ...
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2answers
90 views

DHCP for USB virtual ethernet interface

I'm attempting to connect my Arietta G25 Debian ARM board to my home network using DHCP (or failing that, a static IP in the correct subnet). I'm currently using the board over USB, which shows up as ...
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43 views

Networking a small office with VPN

Recently I purchased a CISCO RV042 Small Business router with VPN Capability, obviously to allow external connection to this office via VPN to access a NAS where business files are stored. I am not ...
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1answer
129 views

DHCP issues, possibly related to Netgear N300 (DGN2200)

Installed 'new' Netgear N300 (DGN2200-100UKS model number) Day 1: Install Changed router IP to 192.168.1.1 Setup DHCP range to 192.168.1.50 - 100 All clients connected and working, 4 Pc's ...
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1answer
30 views

Spoof DNS in a Rogue AP

I am using 2 interfaces on my computer, eth0 grants access to the outside world and wlan0 is where the Access Point is set up. My configuration is based on 2 networks 192.168.1.0 on eth0 and 10.0.0.0 ...
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1answer
35 views

Can My ISP's Assigning me a New IP Explain Poor Performance on my Home Network?

I have observed numerous times that poor performance on my home network, which is infrequent and characterized by slow transfer rates (especially over wireless), is resolved by rebooting the router. ...
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0answers
71 views

How to automate running the dhclient for wwan0?

in Linux Mint 17 I have to run sudo dhclient every time I connect and disconnect to/from the Internet using a mobile broadband dongle, because otherwise the connection is declared active but when I ...
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36 views

2 Routers on network, can i have them do different DHCP

I'm trying to fix a network that we want to have private and public access. Currently they have Verizon service with the actiontec wireless modem/router as the main router. They have the office ...
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0answers
43 views

D-Link Powerline AV500 Issues? One Powerline LED green and the other one not lit? Maybe also messing up DHCP?

A few times now I noticed while one of my Powerline adapters has a solid green LED, the other is not even lit. I understand the oscillation in my electric circuit influences the quality of the signal ...
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0answers
29 views

PC's and Laptops get IP from DHCP, but other devices don't?

We're having a strange issue. DHCP is setup on a Windows 2013 Server PC, it works fine for laptops and computers, even VoIP phones. But not for our access point (or devices connecting VIA the access ...
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1answer
37 views

How can I configure one of the ubuntu desktops as “dhcp-relay-agent”?

How can I relay DHCP requests from LAN to WAN in linux so that the desktop connected to the LAN interface can have Internet access from WAN? Note: WAN has Internet access.
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1answer
64 views

Routers Upstairs / Downstairs, allow them to talk?

I recently installed another router upstairs because the downstairs one didn't reach via WIFI. The second router takes its WAN connection from downstairs (I only have 1 physical connection to the ...
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2answers
38 views

How can I find any additional DHCP servers that may have been installled on my network by an intruder?

See this question for background: Is it possible to hide one's presence from the DHCP client list nmap finds all connected clients for me, and I haven't had any trouble on this front since ...
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32 views

LTSP server with existing DHCP Server

I want to setup a LTSP server on the computer that is already a DHCP server. I'm using zentyal 3.4 on the server, it's basically an Ubuntu 12.04 with zentyal-core installed on it. I have instaled ...
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1answer
95 views

Is it possible to hide one's presence from the DHCP client list

I ask because I recently changed my WiFi password after seeing some unfamiliar devices in the DHCP client list. After that, the client list only has familiar names now, but there is still some ...
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22 views

Static routes in ISC DHCP

I have an Ubuntu 14.04 server at home running bind and ISC DHCP. Bind is caching from unblock-us.com so that I can get access to US Netflix content. This all works fine. I'm running into trouble ...
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1answer
23 views

Defaultgateway do not detect MAC-addresses

Today I was experimenting a bit with the user interface of my cisco router that is the default gateway of my LAN-network. I have two computers and a couple of smartphones atached to it trought WIFI ...
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155 views

CentOS 7 can't get IPv4 address from DHCP server

I have classroom full of computer running CentOS 7 and only one computer can't get IPv4 address from DHCP server during boot, because NIC is not yet up, when dhcp client tries to get IPv4 address from ...