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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1answer
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Switch between DHCP and static IP

My laptop needs to use DHCP at home and a static IP at work. As far as I can tell, there's no way to flip between one and the other quickly - I'll have to manually configure the network connection ...
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2answers
1k views

Does it make sense having a separate DHCP server

I used to use Amahi, and Amahi by default has a built-in DHCP and DNS servers switched on. Now, I removed Amahi, and am assembling my own home server using Ubuntu server. My setup: an ADSL modem / ...
2
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2answers
4k views

I don't want my DHCP to be a default gateway

I have a device which runs a DHCP server. When I connect it with USB to my computer, the PC gets an IP address and the device becomes the default gateway. I just want the device to agree on IP ...
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3answers
6k views

Could not find DHCP daemon to get information on Belkin G Wifi Router

I am using a Belkin G Wireless Router F5D7234, and i have a DSL connection with only a ethernet cable. So i connected the cable to the Modem port and allowed it to use Dyanmic IP, it worked ...
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4answers
2k views

Linux - use dhcp again to get IP

I had statically set my ip in Linux using: sudo ifconfig eth0 192.168.blah.blah Now I want it to go back to using DHCP to assign the IP. How do I do that? This is what I see when I run dhclient ...
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3answers
137 views

Does exists a software that act as DHCP service?

I need to configure a network made by a simple old hub with 24-ports a server and some clients. Both clients and server has Windows XP or later. If all clients has the DCHP service enabled does ...
2
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1answer
69 views

Get IP from DHCP server from other machine in Internal Network

I have two virtual machines: Debian (Router) with one Bridged Adapter and three Internal Network adapters Ubuntu with one Internal Network adapter I installed on Debian DHCP server, I'd like ...
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1answer
1k views

DHCP Reservations, SERVER 2003, easy way to Export txt\csv\xml

I have a list of DHCP reservations, Server 2003. I want to export (in all it is) a list of IP, MAC address. I need the list for view: sorting\store in of DB for later Query, not for importing later. ...
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4answers
1k views

How to reach my router's configuration page?

I've set up a router in my room (It's a TP-LINK W8980). I'm inside a college room, so I connected the WAN to the ethernet ports of my room, and the router is creating a wifi network. It's using PPPoE ...
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3answers
3k views

Windows remembers old DNS suffix

I just changed the DNS domain of my local network from home.local to mydomain.local, after purchasing mydomain.com. I made all the necessary changes in my BIND and DHCP server, and linux clients on ...
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2answers
3k views

How to force DNS for specific clients?

I'm running Shibby's Tomato firmware on my ASUS RT-N66U. What I'm trying to do is force OpenDNS IP's for certain clients (i.e. my kids) based on MAC address, while other clients get the router's ...
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2answers
1k views

Cannot reach the computer in WAN

I wanted to split the internet connection in my room. And my brother also wanted a better wifi accessability. So we bought a router (NETGEAR JWNR2010v5). All we wanted works great, good wifi. I have ...
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3answers
2k views

How to see DHCP assignments in Draytek Vigor 2920 router

Web interface looks chaotic for me. Where can I see a list of computers, which had received IP addresses by DHCP?
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2answers
3k 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 ...
2
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1answer
584 views

Can a broken ethernet cable give link but no ip?

I'm just wondering what the structure is here. Can an ethernet cable give link and seemingly work fine, but cause problems with DHCP traffic between two nodes? One part of me is thinking that link ...
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2answers
1k views

Using multiple interfaces on a RHEL5.5 x64 machine

I am trying to use a statically-assigned address on one interface (eth1) of a server and have a dhcp-assigned address on another interface (eth2) on the same subnet (172.17.11.0/24). When I setup a ...
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2answers
4k views

DHCP IP address have access to the internet but static IP address don't behind a router

I have three PCs 192.168.1.100 (DHCP) 192.168.1.101 (DHCP) 192.168.1.113 (Static) One router (SMC SMC8014WN) 192.168.1.1 The .100 and .101 both have access to the internet. The .113 does ...
2
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1answer
709 views

Router issues IP but Laptop does not accept?

I was having issues with my older Linksys wireless router and decided to upgrade to a Linksys E3000. However, after upgrading, I still have the same issues. What happens is that I will be connected ...
2
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2answers
441 views

Connect to host by name using a Linksys wrt54g as my router and dhcp server

I have a Linksys WRT54G router at my house. How do I enable/perform connect-by-name on my network (like "kitchen" and "musicbox") on Windows XP, Linux (Ubuntu and CentOS), and Mac clients? Sometimes ...
2
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1answer
1k views

Ubuntu reinstall dhcp3-client

Following advice from another SU question (link) I apt-get remove'd dchp3-client from a virtual machine on my computer. The problem the question was hoping to solve did not get resolved, and now I'm ...
2
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1answer
24 views

DHCP Offer already sent to my local IP address

I entered these commands into Terminal to release my current local IP address and allocate a new one: sudo ipconfig set en0 BOOTP sudo ipconfig set en0 DHCP This is the screenshot of DHCP packets ...
2
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1answer
22 views

Where can I find the DHCP client logs in centos

I am running a PC with centos Linux. I have two ethernet ports. One configured as DHCP server and the other to use DHCP to obtain IP address(client). I am interested in getting the history of lease ...
2
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2answers
249 views

Using dhcp and static ip on same nic on linux with systemd-networkd

I have a portabel device that sometimes needs connection to internet(to update) but will mostly be used directly connected to a laptop via ethernet cable. I want my users to have the plug and play ...
2
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1answer
75 views

Connecting two subnets with router

I'm trying to share a couple printers on two subnets and I keep running into issues. I'm trying to figure out the best way to achieve this while maintaing a public and private subnet. Please refer to ...
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2answers
1k views

Raspberry pi has both static and dhcp ip address

I got a Raspberry Pi running Raspbian, connected via Ethernet on my home LAN (on the ISP's default router). The router is configured to give addresses from 192.168.0.10 onwards with dhcp. I wanted to ...
2
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1answer
249 views

How can I add some static IP address at IPv6 for Windows 2012 DHCP server?

I would like to add some static IP address to my Windows 2012 DHCP server. I have tried to pair the IP address with its MAC address. At IPv4 it works, but how can do it at IPv6? Could anybody link a ...
2
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1answer
52 views

On boot, how can I switch to a static IP based on a gateway IP provided by DHCP?

I have a "headless" *NIX host -- let's call it 'foo' -- that is to be accessible via SSH and VNC-tunneled-over-SSH on an arbitrary 192.168.x.y/24 private LAN. Sometimes, I want to physically move 'foo'...
2
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3answers
82 views

IP Address conflict in a LAN

How to find if someone has taken a particular IP address in a Local Area Network? Or in a more generalized form, how to find the list of IP address that DHCP has allocated in a Local Area Network?
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1answer
1k 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: 192.168.1....
2
votes
1answer
143 views

Is it possible to use DHCP to obtain default gateway and DNS server only?

I have a few VMs which I want to keep with static IP addresses. However, I run those on my laptop and frequently connect to different networks which use different default gateway and different DNS ...
2
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1answer
10k views

Configure Windows Firewall to allow DHCP client and specific remote IPs only

I've configured Windows Firewall in Windows 7 to block all traffic on the public interface, except to certain IP addresses, as described here: http://superuser.com/a/456326/112560 The problem is, this ...
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2answers
517 views

Get new IP from changed DHCP server

If changing the DSL router within my network (e.g., because it is damaged or failover to an UMTS-modem happened) it also changes the DHCP server with it. So all connected clients need to fetch a new ...
2
votes
1answer
4k views

No IP address given to router until after cloning MAC address from another computer

This problem had me occupied most of the day until I finally solved it just a little while ago. Unfortunately I still don't understand why the problem surfaced in the first place or why my final "...
2
votes
2answers
8k views

Can't ping network machines by hostname when behind wireless router on university network (only IP)

I have a TP-LINK wireless router (TL-WR340G) that is connected to my university LAN via an Ethernet cable (which assigns a dynamic IP address to each device connected). My Windows 7 computer is behind ...
2
votes
1answer
427 views

Windows XP Internet Issue

I'm trying to fix a computer running XP for a friend, and it is being a pain. It is on the same wifi as this Mac I'm using to type this. It says it is connected and the signal strength is excellant. ...
2
votes
3answers
2k views

LinkSys wireless router failing DHCP

I have a home network that has an ActionTec Router/DSL Modem plugged into the phone line, with my desktop computer plugged into it. I also have a LinkSys WRT54G2 Wireless-G Broadband Router plugged ...
2
votes
1answer
1k views

Trouble setting up DHCP with WRN2000v2 and GS108 network switch

I have the GS108 Netgear 8 port Gigabit network switch and the WRN2000v2 Netgear wireless router. The problem I am having is that anything conneted through the Gigabit switch is not being assigned an ...
2
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1answer
648 views

How to set the hostname according to the DNS name on Ubuntu 9.10?

Motivation I have to manage a lot of virtual machines that I create by copying a template (VmWare image). Problem Now I have the problem that in the template the file /etc/hostname contains a given ...
2
votes
1answer
455 views

How do I add wireless-router to existing VPN-router>DHCP-server network?

Our office just acquired a Cisco/Linksys RVL200 VPN Router for use as our primary router. We handle DHCP serving via dhcpd on a Debian server. I want to enable wireless access to our network. We have ...
2
votes
1answer
106 views

Forward ports to the same computer even when the IP changes due to DHCP with D-link wireless router

I have a PC connected directly to a wireless router D-LINK WBR-1310, and I use port forwarding to that PC so I can connect to it via SSH remotely. However, I use the built in DHCP to manage IP ...
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5answers
5k views

Windows 7 Default Gateway problem

I have a strange problem (or at least seems strange to me) the below are IP configurations for two laptops on my home network which consists of a main router 192.168.11.1 and a connected wireless ...
2
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2answers
51 views

Want to know the local IP address assigned to me by my ISP

I use a TP-Link router (3420) to connect to my ISP. My local IP address is 192.168.0.22. The ISP uses DHCP and the router shows the range of it 10.19.xxx.xxx. Sites like whatismyip.com show the ...
2
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0answers
492 views

How do i make systemd-networkd ignore DHCP pushed default route?

I want systemd-networkd ignore the default route/s pushed by DHCP on one interface. My work setup has 3 network interfaces. I have one .network file for each interface: eth0) internet [Match] Name=...
2
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1answer
130 views

No DHCP lease with wlan0

I am trying to configure wlan0 on my host. It should be simple, but it's not working :( In /etc/network/interfaces, auto wlan0 iface wlan0 inet dhcp wpa-ssid "blahblah" wpa-psk "mykey" ...
2
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1answer
117 views

Windows 7 ignoring DHCP Offer packets

My laptop with Windows 7 can't renew it's IP address via DHCP. I've tried both my ethernet card and my WIFI card, and I got nothing. It stats fine when I log in in my session after a reboot, but after ...
2
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1answer
361 views

Android dhcp assigning bogus dns server

I've been having problems with Android devices and DNS lookups on my WiFi network, so I've done some digging and found that android is assigning what appears to be a random link-local ipv6 address in ...
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0answers
115 views

How to configure two broadband connection on the network so that if one goes down other can automatically start catering to Internet requests

Our earlier setup was 12 PCs connected via a switch. These PCs can connect to eachother via LAN. Broadband connection was via ADSL modem cum router plugged into the switch so that all PCs get internet ...
2
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0answers
1k views

Openwrt bridging issue between wireless and ethernet port

I've this scenario: an AP connected to the STA wirelessly, the AP is a DHCP server I have following configurations in /etc/config/network of the AP: config interface lan option ifname 'eth1 ...
2
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1answer
84 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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0answers
405 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 ...