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
38 views

Disable DHCP for one interface only

On my PC I have one Ethernet port that I use for network testing purposes (testing Openflow switches). For that I want that port to only send the packets that I tell it to (using packet generator ...
0
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2answers
265 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 ...
-2
votes
1answer
47 views

Guest Wi-Fi not getting proper IP's

I have a main router and a cable modem router. The cable modem router(NETGEAR C3000) acts as Wireless Access Point with DHCP disabled bridge mode. Main router IP is 192.168.0.1 sm: 255.255.192.0 ...
1
vote
1answer
33 views

When the ADSL modem goes off, the network will become disabled

In my personal network, I have connected all of my machines and also my ADSL modem to a network switch. The problem is that the machines get their IP addresses from the modem, thus when the modem is ...
0
votes
1answer
165 views

How do I make DD-WRT re-use static leases for wifi clients?

I am trying to configure static leases for DD-WRT, so that my phone gets the same IP address every time it connects via wifi. I have set up a static lease under Services/Services/Static Leases. This ...
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0answers
104 views

Wireless Ethernet Bridge: Client IP address not on router dhcp table

I have a desktop computer connected to my wifi via a Linksys WES610N wireless ethernet bridge. Currently the bridge is assigned the IP address 10.0.0.6. The desktop is assigned the IP address ...
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0answers
91 views

Ethernet connection dropping - DHCP issue?

A user with a Fedora installation is experiencing intermittent interruptions to his wired internet connection on the LAN. I've swapped cables and ports and double checked my VLANS and switchport ...
2
votes
1answer
116 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" ...
7
votes
1answer
4k views

Is there a way to disable the DHCP client in Raspbian Linux on a Rasperry Pi?

I have a Linux server (Rasperry Pi using Raspbian as OS) that should be using only static IP. However I noticed that it also has got IP from DHCP server (The IP given out by DHCP is 192.168.111.2). ...
2
votes
2answers
910 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 ...
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0answers
94 views

Windows DHCP server with multiple subnets

I have a Win 2012R2 DHCP Server in one physical network.(All clients have reservations) Now I have to add more clients and therefore I ran out of IP addresses.(Note this are Class B addresses, without ...
0
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2answers
864 views

I can't access a Netis WF2411 router’s configuration page

I recently bought a router (Netis WF2411) but I’m not able to access it’s configuration page (which should be at 192.168.1.1). I connected the PPPoE cable to the WAN port of the router then the ...
0
votes
4answers
168 views

Why do home gateways host their own DNS servers?

Every consumer-grade gateway I’ve seen hosts its own DNS server and tells DHCP clients to use it. I’ve gotten into the habit of overriding them with OpenDNS/Google/etc., since these DNS servers tend ...
1
vote
0answers
27 views

Ubuntu 12.04.5 erroneously applies static IP to all interfaces

First, I'll start by saying this is a virtual machine in VMWare Player and I’m using Ubuntu 12.04.5 instead of the newest version of Ubuntu because it’s being used in an educational environment to ...
0
votes
1answer
206 views

Static IP address outside of DHCP subnet?

I just set up a wireless repeater bridge. My primary router's IP address is 192.168.1.1. I had a friend guide me over the phone on setting this up. He told me to set my bridge's IP address to ...
0
votes
1answer
553 views

VirtualBox internal network with dhcp server

Using VBox 5.02 OSE, host OS is Arch Linux 4.1.6-1-ARCH I've configured Guest OS Ubuntu Minimal 14.04 with network adapter as "internal network" using the default name for the network (intnet). Now ...
0
votes
1answer
37 views

Can I /release and /renew DHCP of a router?

My current setup is as follows: There is a router the WAN goes into (R1). There is one more router (R2) connected to it and two switches. WAN | | R 1 | | ----- R 2 | | ...
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0answers
42 views

Netgear WPN824 v3 as Wifi AP

How can I use my wifi router as wifi AP. I have disabled DHCP(on this "secondary device") and it is in the same subnet as main router. I use LAN port to connect it to main router. Devices can connect ...
0
votes
1answer
48 views

How to make the same WiFi adapter work on two different networks with different DHCP configurations?

I have a tablet that is going to be used in two networks: One network has DHCP deactivated while the second one has it activated and uses a different range of IP adresses. The problem is that if I ...
0
votes
1answer
118 views

Changing network and DHCP Scope from /24 to /23 for new users

I have watchguard XTM VPN Firewall(use as internet gateway) with /24 and DHCP Server (192.168.1.2 to 1.250) at office. Nowadays we are facing problem like not enough ip address so i want to change to ...
0
votes
1answer
83 views

Assigning unique IP ranges for multiple USB Ethernet gadgets on a single host

I am currently developing an embedded device running Linux, that allows being connected to a Windows host using USB. To achieve this, I am successfully using the USB Ethernet gadget driver on this ...
0
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0answers
53 views

What is preventing Windows from obtaining new IP from DHCP?

I have Windows XP box, which is getting IP address from TFTPD32 application. So in tftpd32.ini I have specified static record: 08:00:27:CE:9B:AD=10.10.1.3 Now I would like to change that record so ...
0
votes
2answers
24 views

How to determine which DNS resolved a request

How can I verify that my client system is using the primary DNS vs. failing over to the secondary DNS? I've found lots of information about verifying the configuration that the clients receive, but ...
0
votes
1answer
54 views

How to Create new scope under super scope in windows using command?

AM trying to create new scope under my exissting superscope. like below +hostname ++IPV4 +++Superscopename ++++newscopes using below command netsh dhcp server add scope <new_scope> ...
0
votes
1answer
67 views

Sharing a proxied university LAN connection via a TP-LINK TP-WR740N router

I have access to university LAN that’s behind proxy and user-password authentication. They assign IP's via DHCP, so my IP changes all the time. Gateway, DHCP servers and DNS addresses remain constant. ...
1
vote
1answer
267 views

Debian server making many DHCP queries per second

I have a webserver running on a local machine, which spontaneously started to send about 400 DHCP requests per second, constantly changing its IP address, until I killed dhclient several hours later. ...
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votes
0answers
162 views

Android & iOS Devices over WLAN can't acquire DHCP IP Address

Here's our configuration : WiFi Access Point with DHCP turned off is connected to our main network. Our main network is serviced by a hardware DHCP (Kerio Control) DNS is serviced by two Windows ...
1
vote
1answer
87 views

VMNet DHCP Server does not assign my Ubuntu machine its own IP

I am trying to build a Virtual Network in Ubuntu with two virtual machines who only have the means to communicate with each other independent of the host. On both machines I went to ...
4
votes
3answers
512 views

Windows 10 Limited wireless connectivity

I updated my lenovo E535 to Windows 10. I have following problem with the wireless connectivity. It seems that even if I connect to the AP the IP address is not assigned using DHCP. Even if I assign ...
1
vote
1answer
2k views

After cascading two routers, can't connect to the second anymore

I have two routers. The "first" one is a TP-Link TL-WDR3600 and is directly connected to a cable modem which my ISP gave me. DHCP is enabled here. The "second" one is Linksys WRT320N. This one is ...
0
votes
0answers
41 views

iptables config to restrict dhcp trafic

eth0 is connected to internet, and eth1 is connected to clients, giving dhcp addresses. However, I've got some clients getting IP addresses via eth0. Is there a way to put a line on iptables dropping ...
0
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0answers
103 views

dnsmasq does not start upon system boot

I am using a RasPi with Kali Linux installed on it. Problem is, that dnsmasq does not seem to start at all during boot. confirmation for that was found here: root@kali:/etc/init.d# update-rc.d ...
1
vote
1answer
166 views

Can't see DHCP Discover packet when capturing DHCP traffic

I am getting DHCP Offer as the first packet on a DHCP traffic capture. Why does this happen? Can it be a normal behavior?
0
votes
0answers
63 views

Why would powerline adaptors work for direct connection but not access point

This is similar to this superuser question and I think pretty much identical to this question neither of which led to satisfactory answers. Basically I want to add a wireless access point to my ...
0
votes
0answers
263 views

Verizon/ActionTec router and “MAC Address already exists in Wireless Broadband Router's database”

I'm trying to add a DHCP reservation for an old Apple G5. Some others want to use it for testing software on PowerPC, and this seems like the easiest way to ensure port forwarding does not break over ...
1
vote
0answers
34 views

How to find DHCP server while configured with the static IP

I'm doing a lot of the weird remote management, due to the specific network configuration, I often need to switch a client from static to the dynamic address. In couple cases the third party DHCP ...
0
votes
1answer
43 views

DNS with two DHCP services

From what I know DNS is a service that translates domain names into IP addresses. I have noticed something on some small networks in small companies when they used routers as a switches. ...
1
vote
0answers
213 views

Can not connect to the internet from fresh install windows 10

So I reformatted a existing computer (Which was on win7) with Win10. I can not for the life of me connect to the internet though. I have tried the following: /release /renew Tried setting my ipv4 ...
1
vote
0answers
114 views

2 APs over Powerline Network within same IP subnet cannot see eachother?

I am having issues setting up my home network using powerline adapters. My Setup I have a Gateway, a Router, 3 Powerline ethernet adapters, and a Powerline Wifi Unit (TP-Link TLWPA4220). All of the ...
0
votes
1answer
87 views

Determine if it's a static IP or a DHCP IP

I'm trying to find a genric solution across all linux distro to find if the IP address attached to the system is a static or a DHCP ? On ubuntu , I can find if it's static or DHCP by doing a DHCP ...
3
votes
2answers
374 views

After assigning public IP address using DHCP, whatsmyip shows expected 193.x.x.x but ifconfig shows 169.254.x.x link-local address

The computer in question has a Linux SO and is connected to a local network that has DHCP service active. I configured a public ip address to be given to that computer by the DHCP and I can ssh into ...
2
votes
0answers
94 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 ...
0
votes
1answer
2k views

Network Discovery issues Windows 10. Net view Error 53, how do i resolve this?

We have a simple 2012 Domain controller which is a brand new DC.I am upgrading our workstations to Windows 10 and have the following problem. Now when I click on network to see all other machines on ...
0
votes
1answer
249 views

Technicolor TC8305C DOCSIS gateway not providing DHCP or reliable connectivity to Apple iOS devices

I'm a Network Administrator, but I'm not sure how to proceed. I have a Technicolor TC8305C DOCSIS gateway, the Comcast brand. Every few months, I find some Apple devices will not properly negotiate ...
0
votes
2answers
78 views

Getting dynamic IP although specified a static one

I have a Linux machine on raspberry that function as an access point. Linux raspberrypi 3.18.7-v7+ #755 SMP PREEMPT Thu Feb 12 17:20:48 GMT 2015 armv7l GNU/Linux And I have a DHCP server on it. in ...
0
votes
1answer
21 views

What sort of information can I discover about my DHCP server?

I want to probe my DHCP server to see what sort of information is publicly available. Is there a way to see things like, which pools my DHCP server services, lease expiration times, etc.? I'm on a ...
0
votes
0answers
185 views

OpenVPN client fails to activate pushed DHCP options for DNS and DOMAIN

OpenVPN client is connecting to OpenVPN server OK. During connection, we see the options pushed contain dhcp-option of DNS 10.0.0.2 and DOMAIN prd1.o2: Sun Aug 2 17:31:06 2015 PUSH: Received ...
48
votes
6answers
6k views

Why is a router needed?

I‘ve been trying to figure out why a router is needed. I know a router can be used for DHCP and some other things, but I’m just thinking of networking with static IPs. So the following: Is it ...
0
votes
2answers
691 views

Bridged Network not working on Ubuntu Guest, Windows 8 Host using VMWare

I'm using VMWare Workstation 11 (Ubuntu 15.04 Guest, Windows 8.1 Host) and bridged networking is operating fine on my home network; however, when I try using the same configuration on my work network ...
0
votes
1answer
197 views

Connecting to two Networks with different DHCP servers

Ok, So at home I have two wired Networks (one with internet access and one that doesn't) I have Multiple Network adapters on my PC and I want to use one into one network and another to the other ...