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
748 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 ...
4
votes
1answer
8k views

PC does not get ip address from router using wired connection

I have an ASUS WL-520GU wireless router with four LAN ports. When my laptop is running Windows 7, and I make a wired connection from the laptop to the router, the laptop does not get an IP address. ...
3
votes
1answer
4k views

Ethernet connection shows unidentified network with no internet access

For years I've used a physical Ethernet connection for my internet access, then a few days ago it went down and said it was an unidentified network with no internet access. I dug out a wifi card and ...
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 ...
3
votes
1answer
826 views

How to make WinServer's AD work with Linux DNS/DHCP on VMware?

I got 2 virtual machines : Windows Server 2008 with Active Directory installed. Linux that works as a DNS and DHCP Server I need to make them work together, but I don't if this is going to be ...
2
votes
1answer
61 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 ...
2
votes
1answer
440 views

Will Windows renew IP address sometime after “ipconfig /release”?

On a Windows 2000 PC, I did a "ipconfig /release" to disconnect it from the network. After about 6 hours, I checked it again and it was still disconnected. But then about 17 hours after that, I ...
2
votes
1answer
492 views

Windows failing to renew IP lease

Approximately a month ago I started experiencing a minor, but frustrating problem: my internet connection would drop for several seconds every two hours. My quick investigation showed that these ...
2
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1answer
68 views

Can't connect to server when router is unplugged

So I have a network here where all computers are connected to a switch, including a local server. The router is connected to the switch which supplies the internet. It is also the DHCP server. Does it ...
2
votes
1answer
52 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. ...
2
votes
1answer
121 views

Reliable cross-platform way of determining hostname from IP address

Within the DHCP table of a router, clients that have sent their network name are listed with IP and MAC addresses. I need a way to get the host names that clients have sent. The router does not store ...
2
votes
1answer
850 views

Failed to connect to server: The requested address is a broadcast address, but the appropriate flag was not set

My server IP address starts with 128.xxx.xxx.xxx and my laptop gets its address as a DHCP and is of the for 10.254.xxx.xxx I configured the server to look for my laptop and when I start the server it ...
2
votes
1answer
289 views

Change IP based on AP

I connect to 8 different Access Points, each with a separate subnet and each location does not allow DHCP. I want my computer to change my IP address to an assigned IP address per location based on ...
2
votes
1answer
662 views

dhclient overwriting resolv.conf

I'm setting up virtual dev environments and I want the hostname.domain to be something specific, eg- "barney.local". However my /etc/resolv.conf file keeps getting nuked because i'm using DHCP. I ...
1
vote
1answer
47 views

Can't connect to router after turning off DHCP

So I was playing around with my router and dynamic/static IP addresses and after I tuned off the DHCP server of the Router I am no longer able to connect to the routers web interface even with a ...
1
vote
1answer
79 views

Multiple virtual network adapters with their own MAC address and external IP address from the DHCP in Windows

I have been searching for a long time on this forum, and although there are many questions about the topic, I wasn't able to get a concrete solution to the problem. I want to have multiple IP ...
1
vote
1answer
50 views

Why unconnected network card periodically sends DHCP requests?

I have a PC with windows 7 OS. The PC has two network cards, one built-in 100Mbit, one PCI-E 1Gbit. The 1Gbit interface is connected to a linux-based router with DHCP server. The server provides valid ...
1
vote
1answer
589 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 ...
1
vote
1answer
490 views

dhcpcd overwrites NetworkManager's /etc/resolv.conf

I have an Archlinux machine. The IP is set to a fixed value, configured via the NetworkManager. When I tell the NetworkManager to connect with this configuration it successfully updates my ...
1
vote
1answer
69 views

Static DHCP with Century Link Modem

I'm currently attempting to change my IP address with my modem provided by my ISP (Centurylink). I was told because of the service I have, they use Dynamic IPs with indefinite lease time, and that ...
1
vote
1answer
1k views

Why won't my DHCP addresses “stick”?

I've been having some addressing issues that I've been unable to solve, and I'm hoping I can get some guidance about other things to research. Service provider is Time Warner cable. A static IP is ...
1
vote
1answer
942 views

Behavior of DHCP-client

This is a question about the Internet protocol standards. The DCHP-client (dhcpcd-5.2.10 from Android 4.x) initializes an interface The DHCP-client sends a DHCPDISCOVER message DHCP-server sends a ...
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1answer
26 views

Using custom-defined IP address vs DHCP on Different Networks

On Mac OSX, is it possible to let the computer obtain a specific IP address (192.168.1.123) on wireless network #1, and let DHCP assign it a dynamic IP address on all other wireless entworks?
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1answer
612 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 ...
1
vote
1answer
1k views

How do I set up multiple access points with a Packetfront DRG700 broadband modem?

I have a Packetfront DRG700 broadband modem (fiberoptic), which also has a wireless DHCP server built-in. In addition I have a D-Link DIR-615 router which is connected by cable to the modem. I want ...
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vote
1answer
279 views

Setting up routing table via DHCP

I have a system attached by two ports to a DHCP server which gives out the following information: Port 1 Ip Address Mask Gateway 10.170.99.38 255.255.255.128 ...
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vote
1answer
167 views

m0n0wall firewall drops internet connection

I have an ADSL router running in "bridge mode" and a m0n0wall firewall behind that is running its DHCP client on its WAN port, where the ADSL router is connected to. I get regular arp errors in the ...
0
votes
1answer
33 views

Configure localhost to use DHCP IP address

I have a local server Wildfly and I have a test application which I can access: http://localhost:8080 works. Now, I have comcast Xfinity with a modem (no additional router). I am working on CentOS ...
0
votes
1answer
16 views

isc-dhcpd sanity check fail even though everything looks right

I have a machine in freebsd 8.1 and I am failing to do service isc-dhcpd start it keeps saying "Configuration file sanity check failed" Hint: I copy the /usr/local.rc.d/isc-dhcpd and ...
0
votes
1answer
74 views

ESXi 5.5 - Management network with no gateway

I'm setting up a test lab for VMware in Hyper-V. I have 3 vSwitches in Hyper-V: -EXT01 -INT01 -INT02 I've also created a W2K12 VM in Hyper-V which has the following roles installed: -AD/DNS -DHCP ...
0
votes
1answer
41 views

Wireless clients disconnected from router when PS4 traffic begins

I consider myself pretty good at networking, but this one has me stumped. My brother-in-law has a PS4 connected by wire to his router. All other (three or four) clients are connected wirelessly (one ...
0
votes
1answer
53 views

Configuring two network interfaces in gentoo using dhcpcd

There are two network interfaces in my system. net0 and net1. Both are in the default runlevels in gentoo. The /etc/conf.d/net file contains Code: config_net0="dhcpcd -b -t 0" and ...
0
votes
1answer
36 views

WNR2000 N300 Router Overloaded?

Hope someone can help point me in the right direction. Here is my issue: For a local fitness club, they offer free open access WiFi. It has a dedicated connection, with a 16/3 broadband connection. ...
0
votes
1answer
115 views

Win 7/8/8.1 create wireless open/WEP network - any possibilities?

I have a very old (2003) equipment that has Aironet/Cisco 350 network adapter on board (no WPA/WPA2, only open/WEP authentication). I need to connect it with PC (Win 7/8/8.1) without external access ...
0
votes
1answer
30 views

FreeBSD default router

I have two network interfaces in a FreeBSD box, both configured with DHCP; each is assigned an IP and gateway. FreeBSD is using the wrong interface for outbound traffic. How can I override the default ...
0
votes
1answer
24 views

Restarting BIND service getting error

When I restart the BIND service getting this error from syslog named[4960]: /etc/bind/named.conf:15: couldn't add command channel 127.0.0.1#953: address in use Even when I execute nslookup ...
0
votes
1answer
46 views

Win Server 2008 DHCP on Virtual Network

I'm new to network stuff. I have 2 virtual computers running in VirtualBox: 1 on Win XP and 1 on Win Server 2008. I'm trying to create a DHCP server and DNS server on my server. I know how to add ...
0
votes
1answer
34 views

DHCP List not empty after disconnection

I have a wimax modem connected to a router, a TP LINK router, the weird problem I am having is that it keeps dropping wifi, and I cannot reconnect to the wifi again. I connected the router by wire, to ...
0
votes
1answer
255 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 ...
0
votes
1answer
52 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 ...
0
votes
1answer
167 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 ...
0
votes
1answer
77 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. ...
0
votes
1answer
769 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 ...
0
votes
1answer
73 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
211 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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0answers
562 views

DHCP Discover with no Client Identifier (Internet Radio incompatible with Netgear and Linksys routers)

I have a Sangean DDR-63 internet radio (innards made by Frontier Silicon). If I use my Verizon WiFi cellular modem hotspot it works fine (but that's expensive). Connected directly to my cable modem ...
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0answers
857 views

How to Configure a Hotplugged Network Interface with a Static IP Address

I have a device that I connect to my host Ubuntu machine via Ethernet over USB. It shows up as usb0 in ifconfig and the device always has the same address: 192.168.0.1. I have the following two ...
0
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0answers
258 views

Diagnosing an Internet Radio's network problems

I bought an Internet radio: a box with speakers, built-in CD player and FM tuner, Ethernet connector, WiFi antenna etc. It's a new model, released about 6 months ago. When I try to set it up, ...
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0answers
587 views

Laptop can't find the DHCP server

My laptop (Acer Aspire One running on Windows XP) isn't connecting properly to the router we have (2WIRE, At&T UVerse DSL). When I try to connect, it gets stuck on "Acquiring network address". ...
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0answers
108 views

how to connect linux to win 7 that tether from my Android?

not sure if it's an Android question but ... I connect my win7 to the Inet via USB tethering. I wonder if and how I can connect my linux box to the net. It can be done only via ethernet.