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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35 views

How to get clients' names into the caching DNS-server?

Scenario: small home/workshop network (behind NAT), one Linux server running Samba 3.6.6 + DHCP-server + pdns-client (caching dns), some 2-3 workstations (Linux + Windows) and some 2-5 units (Android ...
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0answers
50 views

DHCP Server and WINS Server Sharing Same IP

I have been trying for a couple of weeks now on an Ubuntu system to try and run the machine as both a WINS server and a DHCP server - is there anything that would stop this from working? I just don't ...
0
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1answer
27 views

LAN filetransfer over switch - router (dhcp, dns) offline

Scenario: I am copying e.g. 1TB files with "rsync" from one machine to another (both get's dynmaic IPs). Between this two computers there are three switches. On one switch there is a router connected ...
0
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1answer
131 views

Openwrt: How to determine loss of lease?

I am connected to ISP using "IPoE" authentification. It works this way. When a new network device is connected, it gets a local IP address (100.x.x.x) with 10 min lease, and there web authorization ...
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1answer
25 views

Will “smart” network switches send data direct or via its DCHP server?

Bear with me on this one. I have two Airport Extremes at home linked via a long gigabit ethernet cable. I wanted to improve the control over the network by connecting all my devices via smart gigabit ...
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0answers
63 views

Network configuration to enable two gateways (ISPs)

I'll try to explain this clearly, but it's complex. My ISP (ISP1), who shall remain nameless, has reliability issues. I have a second one (ISP2), as a backup and for heavy traffic. ISP1 is Gateway 1 ...
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1answer
56 views

How can i configure my network so i can access a linux box behind 2 routers (4G and wifi)

I have a 4G router (DLINK DWR-921), its connected to the internet and its local IP is 192.168.0.1 I also have a WiFi router (ASUS RT-AC87U). Connected to the WiFi router i have a raspberry pi box ...
1
vote
1answer
865 views

D-link DIR600 DHCP clients list

I have a DIR-600 Wi-fi router and would like to know, where can I find DHCP clients list. I found only NAPT Active Sessions menu entry, which contains private IP addresses and TCP / UDP sessions. It ...
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1answer
54 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 ...
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2answers
324 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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1answer
50 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 ...
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1answer
34 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
232 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
136 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 10.0.0....
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0answers
124 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
138 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" ...
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votes
2answers
7k 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). ...
4
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3answers
1k 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 ...
0
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0answers
117 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
2k 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
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4answers
220 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 ...
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0answers
28 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
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1answer
278 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 192.168....
0
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1answer
861 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 ...
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1answer
42 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
49 views

Netgear WPN824 v3 as Wifi AP

How can I use my wifi router as a 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 ...
0
votes
1answer
51 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
198 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
100 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 ...
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0answers
57 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
27 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
65 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> <subnet&...
0
votes
1answer
85 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
354 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. ...
0
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0answers
200 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
106 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 Settings->...
4
votes
3answers
553 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
3k 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
43 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
votes
0answers
128 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
215 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
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0answers
66 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 ...
1
vote
0answers
339 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
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0answers
43 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
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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. modem---...
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0answers
245 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 ...
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0answers
137 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
149 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
418 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
1answer
127 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 ...