Questions tagged [dhcp]
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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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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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 ...
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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 ...
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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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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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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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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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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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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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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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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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Connecting blackbox host to PAN
I got following scheme:
/-----\
------------- ( ISP )
+---------+ / \-----/
| 0 --/ +---------+
| gateway 1 ---------- ...
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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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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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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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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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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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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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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 ...
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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 in ...
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Windows 10 not getting IP address from DHCP
My PC is running Windows 10 64 bit. I don't know why it is not getting an IP address from the DHCP server; I am sure it's a configuration problem. It is getting an IP like 169.…
Here is what I have ...
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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 ...
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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 ...
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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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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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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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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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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'...
user90534
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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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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 ...
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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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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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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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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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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 ...
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Use static IP on home network else use DHCP
How can I setup Windows (10) so that it has a static IP address on my home network and otherwise use DHCP?
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Unable to receive IP from DHCP when using ICS on Local Area Connection
The computer fails to get the IP from DHCP when I set internet connection sharing in on. (The network reads "Unidentified Network".)
I have to manually turn it off and then connect again to get an IP ...
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Will a router's DHCP/ARP table show a network switch?
My network setup:
wan > pfsense router > switch > unifi AP
Well I just got the switch. Brand new. I'm trying to set it up, but it's showing two IP addresses. The switch config utility says "IP ...
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Hardcoding dns adresses in dependance to network
I would like to save permanently dns addresses.
According to link I added in
/etc/dhcp/dhclient.conf
proper line and in my home network everything works great.
Problem is that when I am at my ...
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On Debian jessie, can I specify which dhcp client is used for a particular interface?
I use the /etc/network/interfaces file on Debian to configure my network interfaces with DHCP. The relevant section looks like this:
allow-hotplug eth0
iface eth0 inet dhcp
allow-hotplug eth1
iface ...
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My access point router stopped connecting to the internet at the stroke of midnight and now I can't seem to bring it back
Today I purchased an Archer C8 to setup an access point across the building that I am currently living in. I followed the steps from this article (http://www.tested.com/tech/298-how-to-use-an-old-...
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VLAN - Tagging Query
I have a netgear switch and the following configuration is working.
VLAN ID PORTS
1 1 2 3 4 5 6 7 8
10 1 2 3 7 8
20 3 4 5 8
Each port is untagged in ...
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Router won't re-offer DHCP
Wondering if this "as designed" or a bug in my netgear router.
I have an AP connected to the router (via EoP)
If i connect to the router SSID, get an IP then disconnect and connect to the AP SSID I ...
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Only 2 Clients connected, yet router shows 4 IP addresses in the DHCP list
There are at present 2 devices connected to my home WiFi network, my laptop and my Raspberry Pi. The MAC address table on my router configuration page shows 2 clients connected but my DHCP client list ...
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Ubuntu Server gets kicked off LAN periodically / when another device joins LAN
I'm running into an issue with my newly created Ubuntu server. Full Disclosure: I'm pretty new to both networking and Ubuntu, so I may have missed any basic setup step that would address this problem....
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OpenWRT Chaos Calmer 15.05 DNS forwarding, custom DNS Server, DHCP option - nothing works
Okay, so essentially I'm trying to only forward one very specific address over one of those geo unblock dns proxy services. Namely Pandora.com. Don't judge, I like their raido stations better than ...
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Why is dhclient ignoring dhclient.conf?
I have the following problem I want to solve:
I have multi homed system running linux, with three interfaces. All interfaces are configured by dhcp. The DHCP client is ISC dhcp 4.2.5
The DHCP server ...
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DHCP Requests leaking through VPN
I have a spread-out setup to deal with: 3 off-site buildings with Tomato Firmware-based routers, connecting to another Tomato-based router as a VPN setup. The Server router is also in our private LAN ...
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What IP address do I assign in order to keep communication between my AP and my router?
My network setup:
WAN > Router(pfsense) > AP(tomato)
The gateway for my router is 10.12.1.1
The gateway for my AP is 10.12.1.201
My AP is only an AP, not a DHCP server. The router is my DHCP ...
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Manage DHCP on windows server from computer outside domain
I am trying to manage a DHCP server running on Windows Server 2008r2 from a computer that is not in my active directory domain. I currently get the error: This call was performed by a client who is ...
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