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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429 views

udhcpc: How can I get the result of requesting option?

I use commond line like this: udhcpc -O domain But the teminal only shows like this: Sending discover... Sending select for 192.168.X.X... Lease of 192.168.X.X obtained, leasing time ... So ...
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1answer
888 views

IP conflict when connecting DHCP enabled PC to DHCP enabled laptop with its wireless and wired network connections bridged under Windows

I have a laptop running Windows XP SP3 with a wireless NIC and a wired NIC. I bridge the two network connections under Windows\Control Panel\Network Connections. This gives me a single bridged network ...
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937 views

WNDR4500 DHCP Passthrough not working

I have a 2Wire Internet gateway with DHCP running. I have added a NetGear WNDR4500 to provide Wireless N and network attached storage (USB via WNDR4500). I have a media server connected to the 2Wire ...
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2k views

Ubuntu Server 11.10 interfaces file unreadable

I am configuring ubuntu server 11.10 to go from dhcp to static and whenever I try to restart my networking manager, I get the error: command ran: sudo /etc/init.d/networking restart ...
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3answers
420 views

Router behind switch in my home office will not pull up a dynamic IP from my service provider

I have the following setup in my home office: Fiber-optic service from my service provider passes through the service provider's ONT in the basement and into my apartment via an Ethernet cable ...
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269 views

Connecting PC with static IP to netbooter

I am trying to connect a netBooter to a computer with a static IP address. The instructions in the netbooter ( http://www.synaccess-net.com/support.php ) say that I can connect the netbooter directly ...
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1answer
2k views

Vyatta DHCP relay is not relaying replies correctly in bridge

I have DHCP server (dnsmasq) on LAN network that has IP 192.168.255.2/16. Now I've created bridge on Vyatta that combines LAN and WLAN networks. Both NICs are on promiscuous mode in ESXi. If I put ...
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1answer
718 views

Not receiving responses sent from a different subnet when my machine is on DHCP

I am building a utility to communicate with some hardware that comes with a default IP address of 10.0.0.1 and subnet mask 255.255.255.0. The hardware replies to UDP messages on the same IP and port ...
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1answer
858 views

PCs on domain can not resolve external IP addresses using the DC's DNS Server

I currently have a domain controller which handles all DHCP and DNS. The DHCP works just fine and the domain controller itself can use the internet with no issues. However, PCs that are part of the ...
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203 views

1:1 NAT IP address using iptables

Suppose I have 2 internal networks: 1.1.1.0/24 and 1.1.2.0/24 I would like to NAT a specific IP address from one network to the other, in which the new address would be obtained via DHCP. For ...
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1answer
55 views

DHCP/routing oddness

I have a Squid proxy server on my network that is connected to the DHCPd server (commodity router) through a commodity switch. If there is a break in the connection (eg router needs to be rebooted) I ...
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1answer
3k views

dhcpd not processing broadcast DHCPDISCOVER

My DHCP server is handling two subnets. The first subnet is all host -> fixed-address sets for known hardware. The second subnet has a pool set up to handle virtual machines in a vCenter. Now, if ...
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2answers
345 views

Why does my IP address change back to private range when I reboot?

I have a windows domain with DNS that forwards to my ISP and DHCP that passes out addresses in the 10.0.0.X range. Things were fine until recently, now when I reboot I get a 192.168.40.X address ...
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1answer
81 views

setting up a WGR614v7 behind a linux box

Here's the setup, I have an openSUSE box with 2 NICs, one goes to my home network router, the other has DHCP running and it attached to a wireless router. I'm trying to get this setup to work before ...
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92 views

How to electronically determine if ISP assigns DHCP addresses in RFC1918 range

Is there an electronic method/protocol/public-website that I can use to definitively determine whether or not my ISP assigns (RFC1918, Private_network) addresses for DHCP assigned addresses? I ...
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1answer
348 views

Wireless Bridge -DHCP

I was thinking of picking up a couple of TP-Link wireless routers, and setting them to bridge. I have a sep. LAN network that would have one of them, and I'd put one on my internet connection. ...
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1answer
491 views

domain network with DHCP + NAT

I'm configuring a virtual network on an esx server. I have a Windows Server 2008 R2 configured with these roles: - active directory domain services - DHCP server - DNS Server - Network Policy and ...
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2answers
148 views

Enabling access to a home server from “Internet” side

I wish to enable remote access to my linux home server, so I can use it when I'm not home. I tried doing so using port forwarding as follows: http://<RouterInternetIP>:<SomePort> => ...
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1answer
681 views

USB Ethernet Adapter Link Local - DHCP Assignment for Link-Local Not Working

I have a rather interesting problem with a Belcarra USBLAN ethernet adapter. According to the manufacturer's tools my host adapter is getting an IP address. According to Windows, however, it is not. ...
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1answer
445 views

IP address changes frequently & Computer is not available via hostname

I have a cable modem from my ISP to which I can only connect wirelessly. Currently I have a desktop PC(windows 7 x64) a dell laptop(windows 7 x64) an iPod(iOS 3.1.3) and a linksys wrt54g router (v8 ...
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2answers
1k views

Make dhcp assign same IP and hostname for different interfaces at one machine

I have a feeling that question itself looks stupid but it is not. Please let me clarify. I have dynamic DNS with BIND and NIS configured at my LAN and have laptop which I am using in both wireless ...
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1k views

DHCP Client Can't Find DHCP Server

I currently have 3 machines: CentOS (router) eth1 - 18.0.168.1 eth2 - 145.165.34.1 Windows Server 2008 (server) 18.0.168.2 DHCP scope - 145.165.34.10 - 145.165.34.20 Windows 7 (client) Supposed ...
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2answers
392 views

DHCPD (Slackware) - Disabling auto-generation of gateway as DNS server

Good day, I am using a Linux workstation on Slackware 13.37. One "problem" I have had to deal with ever since 11.0 is the following: DNS servers are queried and determined at startup by DHCP ...
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224 views

Windoews 7 doesn't Take the right IP configuration when it set to obtain IP automatically

Every time I connect to a network wireless or LAN The laptop does not take the right IP Configuration while the adapters are set to obtain the IP Configuration Automatically, after connecting to the ...
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1answer
509 views

DHCP Not Communicating with Wireless

Hi there I have just setup a DHCP server (experiment) on Windows Server 2008; as I have not done this before I have come across a problem. It will issue out Ethernet IP's however when it comes to ...
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6k views

What causes my desktop computer to lose its internet connection on a wired LAN?

Please help! I am at my wits end. I am by no means a techy, but I feel I am intelligent enough to read these forums and follow directions, but I digress... My issue, I have a very simple home network ...
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61 views

Network connectivity

I have a switch in my room with 2 machines connected. There is another switch in another room connected to a DHCP server. One of the two machines in my room can access the network past the switch in ...
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2answers
386 views

IP address different on Mac vs. PC?

I have a Mac on the Wi-Fi network and my colleagues have Windows, also connected by Wi-Fi. Why is my IP address totally different from theirs? e.g. mine is 192.x.x.x theirs is 10.x.x.x. We on the ...
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0answers
136 views

Windows 7 drops connection when searching for another computer

I have been struggling with this issue now for a week. Here's the basics behind things... First of all, the main firewall/DHCP Server/et al for my workplace is a SnapGear SG850. Until recently, ...
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1answer
941 views

dhcp6 server config problems

I'm trying to configure an IPv6 DHCP server in gentoo. So far: /etc/dhcp/dhcpd6.conf - subnet snippet: subnet6 2001:db8:21e:101::/64 { range6 2001:db8:21e:101::6 2001:db8:21e:101::100; ...
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615 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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981 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 ...
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308 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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1answer
1k views

DHCPREQUEST not replied

I have installed wpa_supplicant on Debian Squeeze so i can connect to my home and the school WiFi network. My home network is secured with WPA2 AES and I can connect to this network without any ...
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1answer
702 views

DHCP setting an IP on router but APIPA on computer

I took my computer with me while house sitting. Now back at home, DHCP is setting an IP on the router, but I get a 169.x.x.x IP on the computer. I've tried using a static IP but was unable to connect ...
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0answers
608 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
109 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.
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1answer
1k views

How to get VirtualBox machine to show up as an “attached device” on home router?

I have Windows Server 2008 R2 running on a VirtualBox vm inside Mac OS X. I put it in "bridged mode" in hopes that it would receive an IP address through DHCP and become visible as an "attached ...
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1answer
957 views

DD-WRT Seperate WLAN from LAN

I tried separating my WLAN from the lan following this tutorial. Unfortunately after the settings are changed, DCHP on the WLAN isn't working any more. I guess it may have to do with incorrect ...
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1answer
592 views

How safe is the IP address configured through DHCP?

I'm using internet through USB Dongle having GSM based 3G connection, it is using DHCP to configure IP address, I'm having a small HTML page in my computer that uses Google Maps and Browser's ...
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1answer
255 views

Multiple dhcp servers on separate lans connected to same modem - is it possible?

I have 2 clients who share a cable connection that has a modem/router on it. I call this one lan 0, which has dhcp disabled. There are two Cisco/Linksys routers attached to lan0, named Lan1 and Lan 2, ...
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1answer
2k views

Using dhcpcd to reset manually set interface

Use dhcpcd to get IP address (dhcpcd -p eth0) Manually change the IP address (ifconfig eth0 x.x.x.x) Kill dhcpcd (dhcpcd -k eth0) Restart dhcpcd (dhcpcd -p eth0) In this case dhcpcd will not set ...
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1answer
1k views

Netsh commands not working on remote computer

At work, we are in the process of migrating over 200 computers from static IPs to DHCP. The DHCP server is configured. My biggest hurdle is physically going to every single computer in the area and ...
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1answer
1k views

Asus EEE PC 1005HA (XP Home) refuses to connect to Virgin Mobile MiFi

My client has an Asus EEE PC model 1005HA, and we're attempting to connect it to the WiFi network created by a VirginMobile MiFi unit. They also have a MacBook Pro with Snow Leopard that has ...
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1answer
446 views

Use dns suffixes only on certain wireless networks?

quick question. I'm a software guy and networking is all black magic to me! I have a laptop which I use at home and at the office. In order to be able to more easily reference our servers at work, I ...
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2answers
8k views

Why is my Iomega StorCenter Not Recognized Using port 8888 — Airport Extreme Configuration?

Problem I have an Iomega StorCenter ix2-200d, but I think this question would apply to the Iomega StorCenter products in general as I am at the very begining of the setup process. Environment The ...
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2answers
1k views

Linux NetworkManager can't connect

I have a Linksys WRT54G wlan router set up as an access point. It's connected via cable to our main router (and DHCP server) which connects to the net. The cable connection indicator light is on, on ...
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1answer
89 views

Strange behavior in Network Browsing Applications

I believe this is somewhat related to my other question, Leopard Network Shares and Browsing are unreliable. I believe the problem is being caused by our network, because we're seeing problems in our ...
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2answers
183 views

DD WRT in Repeater mode but no DHCP?

I have DD WRT on my landlords router and its set up to be a repeater, it gets its WIFI from their house (I do not have access to the main network, just the WiFi that DD WRT thing gives me), the ...
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2answers
55 views

static IP holds good even after changing network to dynamic

I'm using wpa_supplicant as a client to connect to an AP. When i'm trying to change the wireless connection from STATIC to DHCP(dhclient is invoked using the below command with leases ...