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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Linksys E2000 (dd-wrt) DHCP in AP mode

I have configured my Linksys E2000 Router as a switch via dd-wrt. Devices connected by LAN: Samsung Smart TV ISP provided IPTV device Cable going to my actual Router (ISP provided, also the DHCP ...
2
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1answer
23 views

Wifi config on raspian jessie getting DHCP lease but no DNS

I'm having this issue on raspian jessie where the wifi interface is connecting to the router, getting an address by DHCP, getting the correct gateway, but DNS is not working. Can ping 8.8.8.8 for ...
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0answers
8 views

Multiple Microsoft Hosted Networks in one household

Trying to have multiple hosted networks in one household but something is wrong. On PC 1 it is set up using the commands netsh wlan set hostednetwork mode=allow ssid=HotSpot key=8characters netsh ...
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1answer
20 views

Setting up Static IPv4 and IPv6

This question is for an internal home network. I purchased a new PC and installed Windows 10. By default, both TCP v4 and v6 are enabled, and run in DHCP mode. I am familiar with configuring the ...
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4answers
35 views

DHCP shuffling of addresses

So, devices using DHCP to locally connect to my router can have their LAN IP addresses changed if not set to static, and my understanding is that DHCP occasionally re-allocates these addresses by ...
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34 views

UPnP port forwarding with DHCP

I'm trying to set up UPnP port forwarding with a DHCP router for an IP Camera. There were a couple things I was wondering: The main issue was whether port forwarding with UPnP continues to ...
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0answers
17 views

Windows DHCP Server - Script to remove duplicate leases to the same hostname

I’m looking at creating a script that clears out duplicate DHCP leases from our Windows Server 2008 R2 based DHCP server. I’ve found out that you can’t do this natively in PowerShell, but you can use ...
2
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0answers
27 views

I cannot determine hostname of remote machine, but my local DHCP server can

I have 3 devices in my network - my PC and 2 self-made devices. My PC serves as DHCP server for devices. All this is connected via ethernet and switch. DHCP server shows valid hostnames of devices: ...
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1answer
19 views

I need help configuring my DHCP server

I'm following this guide here, my goal is to set up a home server and I'm currently stuck at DHCP. I changed my DHCP server to 198.162.2.11, when I run ifconfig I can see that the default gateway and ...
3
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0answers
48 views

Enabling DHCP via PowerShell results in 2 WiFi connections to same network

I have a VM on my network setup as a gateway that I use sometimes, while most of the time I just leave my PCs configured to use DHCP and just have everything go through the router. I had been swapping ...
3
votes
1answer
18 views

Renew DHCP Lease without knowing if en0 or en1

Dear Superuser Community, I'm writing on a a script that renews the DHCP Lease. To function correctly on other computers, how can renew the DHCP Lease without knowing if en0 or en1 is active. Is it ...
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3answers
153 views

If I have two routers, how do computers choose which to use?

We have two ISPs at home, and I've connected a different router to each and both routers into our LAN, one large ethernet switch that everything connects to. One router has the IP 192.168.1.1 and ...
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1answer
29 views

How to send DHCP server a different hostname than the machine's static host name?

I'm using an at-home-type wireless router as the DHCP server for my desktop, with said router's management console showing the host names of the connected machines. If I put send host-name "AAA"; ...
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0answers
29 views

Use DHCP server to send custom data to DHCP client

Is there a way for DHCP server to send some custom data along with other configuration that it sends to DHCP client while assigning IP address to client? I tried using isc-dhcp-server/dnsmasq as ...
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1answer
29 views

DHCP Lease Expire Time (IPV4)?

Could someone tell me what this does? I assume it changes my WAN IP address? Recently somebody got my WAN IP address and for security reasons I wish to change it, should I wait till the DHCP lease ...
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1answer
35 views

Assigning IP addresses and subnetting on a home network

After 4 days of trying, googling, and tearing my hair, I have managed to bring down the internet at my home. I needed to implement the network as follows, however my efforts have managed to bring down ...
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0answers
11 views

isc-dhcp-server behavior when duplicate REQUESTs

I hope you can help me understanding how to handle the following problem. MY OBJECTIVE I have a network with several segments and one DHCP server. Each segment has a network element that I want to ...
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0answers
21 views

linux - using built-in dnsmasq's tftp server transfer sample file to dhcp client

When dhcp client contacts dnsmasq's dhcp server to assign ip address, is there a way to transfer some file to dhcp client using built-in tftp server? dnsmasq.conf file contains following tftp related ...
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2answers
28 views

How many IPv4 addresses are used for dynamic assignment through ISPs?

From the IPv4 addresses, we have the private addresses (10.x, 172.x, 192.x), localhost addresses (127.x), self-assigned (169.x) multicast and broadcast addresses. From the remaining, I guess a lot of ...
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2answers
32 views

Release static IP

I've a static IP address assigned by my internet provider. For security reasons I'd like to change the address to another one. How can i do that if it's not DHCP-ed? There are "Release WAN Lease" and "...
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votes
1answer
42 views

How to configure two wireless routers (Separated by distance) with the same network?

Hello, I have two wireless routers configured properly following my Internet Service Povider instructions. Our house is composed of two floors and in each floor there is an ADSL socket, to which is ...
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1answer
22 views

Connecting blackbox host to PAN

I got following scheme: /-----\ ------------- ( ISP ) +---------+ / \-----/ | 0 --/ +---------+ | gateway 1 ---------- ...
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1answer
23 views

Apple Devices, NTP-Requests?

Our DHCP delivers the address of an internal (working) NTP-Server. However our firewall reports a "massive" Storm of NTP-Requests (from iPhones, iPads) trying to contact some server on the internet. (...
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2answers
35 views

I have one NIC with two conflicting IPs. Fix?

I searched for my problem, and although there are similar questions none guided me in the correct direction. Sorry if it looks like a duplicate question. I have a LAN behind my ISP modem, routed by a ...
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0answers
23 views

gateway on IP1, DHCP/DNS on IP2 -> network down

My gateway has IP 10.10.10.1, and I am trying to get a Windows Server (10.10.10.2) to provide DHCP and DNS services. I have set up DHCP and DNS in the Windows server, and disabled them in the router (...
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0answers
21 views

use a dd-wrt powered router or server to overide DHCP then intercept and controll data [closed]

I have a shared internet connection here and for quite a while now one or two computers have been dragging it down consistently. having used software like arcai's netcut this is manageable to some ...
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1answer
45 views

Unable to connect to DHCP after using VPN

I used a VPN to play a game I was having some issues with. After uninstalling the VPN I have had some issues connecting to the internet & my local network on a Ethernet connection, wireless works ...
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0answers
38 views

dnsmasq requires a restart of the networking system on BeagleBone Black (Debian 8.5)

I am currently trying to configure a BeagleBone Black running debian 8.5 as a WiFi Access Point. The programs used are hostapd and dnsmasq. I've made huge progress, in principle the access point is ...
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0answers
23 views

No internet when obtaining IP address automatically(static works) with HP 1910-8 switch

I can ping all VLANs from all VLANs in the switch. I can log into the router/gateway from all VLANs. I can even ping 8.8.8.8, for example, from all VLANs. I can only access the Internet from VLAN 1. I ...
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0answers
43 views

How to share files to devices connected between router 1 & router 2

Hardware: Huawei HG8247 (router 1) - router & modem combo. Linksys EA6900 (router 2) - router with 4TB hard drive attached. Goal: Share hard drive files to a laptop connected to router 1 via ...
2
votes
1answer
32 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 ...
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0answers
59 views

Windows 10 not getting ip from DHCP

My PC is running win10 64 bit. I don't know why it is not getting IP from the dhcp, I am sure it's configuration problem, It is getting an IP like 169..... Here is what I tried : 1. Changing router ...
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votes
3answers
89 views

How to assign a static IP to a Computer in Active Directory

I'd like to know how you can assign a static IP address to a computer using Active Directory. I know it is possible with a user using the Dial-in tab, but doing it on a computer has no effect (unless ...
0
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1answer
21 views

DHCP messages when connecting to home WI-Fi

I inspected DHCP packets with wireshark. Expected result was to see 4 packets, namely DHCP discover, DHCP offer, DHCP request and DHCP ACK. I only see 3 as indicated by the picture. DHCP discover and ...
0
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1answer
46 views

Static IP in dhcp server

I have the following situation: Home network DHCP server ranged : 192.168.1.2-99 I need to set up a static ip for a machine in: 192.168.1.91 I cant set it up from network adapter because this ...
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0answers
21 views

Android is not getting dhcp lease but server offers one

Android is not getting dhcp lease but server offers one. My Linux Mint 17 desktop gets an IP via DHCP (wired network). Do you habe any hints where the problem is possible lying? Where and how should I ...
0
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0answers
24 views

Simple DHCP server for just one device

I am building a small system that has one embedded computer and one ethernet device. The embedded computer has a fixed IP address (from the manufacturer), but the ethernet device uses DHCP to get its ...
0
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1answer
46 views

Old DHCP IP showing in ipconfig /all

I recently migrated a 2003 DHCP database to a 2008 r2. The newly configured workstation will pick up the right IP settings including DNS, DHCP server, and gateway but the old workstations will still ...
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1answer
23 views

VM Pulling IP out of my DHCP Range

I've set up a 2016 server on my laptop to mess around with, and added the usual suspects (AD, DNS, DHCP). I set the DHCP pool to 192.168.0.20 - 192.168.0.250. All my physical machines are withing ...
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0answers
15 views

What is the proper setting to set Bufffalo DD WRT as Gateway and DHCP Server?

Consider the following diagram: Note also that all three units may have WiFi enabled each with its own SSID. I would like to make "B" into this network's sole Gateway and DHCP server such that no ...
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1answer
38 views

Static IP to LAN ports - OpenWRT

I have TP-Link TL-WR841N router and I had install OpenWRT firmware on it. I want to use it on a experimental project which requires me to set static IPs for LAN ports on router as mentioned in below ...
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2answers
59 views

Release and Renew Ip won't work

I recently asked a question after someone online directed me to a link giving them my ip adress. I got some great help and advice and was told to release and renew my ip adress so the hacker couldn'...
2
votes
1answer
36 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 ...
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0answers
95 views

Wifi access point no internet connection

Situation There's a intranet with access to the internet. However, you can only gain access to this network, and therefore the internet, if your device has a whitelisted MAC address. This is no ...
0
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1answer
22 views

Mapping device hostnames to DNS automatically in DDWRT

I already know how to accomplish this manually using a host file and static ip addresses I want to map all hostnames to their IPs with a DNS entry MY-COMPUTER -> my-computer.local -> 10.0.0.1 ...
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1answer
26 views

Can you have static leases without DHCP?

Is it possible to assign IPs to only those on a static lease list, but not give dynamic IPs to unknown MACs? It seems DHCP is required to have a static lease list?
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1answer
14 views

Strange issues with AP and printers on network

i have a TpLink WA901ND using it as access point, connected to a simple 8 ports switch and one of these ports is connected to a network printer. My Access point has this class of ip: IP: 192.168.11....
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1answer
43 views

Configuring router(s) for point to point link with users only on one side

Our home is on an island about 3 miles offshore. We use a wireless point-to-point link for Internet access. Our ISP supplied all-in-one cable modem/router resides in an electrical box on the shore. ...
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0answers
27 views

ADSL Teracom router permits only static IP connections to internet but not DHCP

I have asked this question elsewhere but I have yet to get a firm understanding of where the problem is - http://askubuntu.com/questions/773557/unable-to-trace-where-my-ubuntu-networking-problem-is I ...
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1answer
58 views

Connecting Ubuntu Server to internet

I just installed Ubuntu Server, and I want to install a few updates, however I keep getting a error message. If I try to run ping www.espn.com every one fails, so I believe I am not connected to my ...