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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20 views

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 ...
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0answers
14 views

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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0answers
9 views

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 ...
1
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1answer
23 views

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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0answers
6 views

two interfaces conflict when running two instances of CherryPy

I am running small database website on CherryPy (legacy, not mine codebase) for our lab at The University. We had production host and CherryPy instance (database.uni.edu, mapped to static IP ...
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1answer
27 views

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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0answers
13 views

No Internet and No Default Gateway on TP-Link Modem

When I do an ipconfig /all, no default gateway returns. Here's my ipconfig /all response: Windows IP Configuration Host Name . . . . . . . . . . . . : TS-Work Primary Dns Suffix . . . . . . . : ...
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0answers
17 views

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 ...
0
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1answer
35 views

How to configure DHCP on router to manually define the routing table distributed to users?

I have a router in my home, to which there are several devices connected to it (over Wi-Fi and Ethernet) and get the network information through DHCP. I want to configure the protocol, so I can ...
4
votes
1answer
32 views

Browser autostarts when ethernet is connected. How?

I plugged my Windows 10 laptop into a router from our new isp. We only got the fibre, no services set up yet (The fibre can carry phones, tv and internet) Immediately when I plugged the cable in, the ...
2
votes
2answers
40 views

Want to know the local IP address assigned to me by my ISP

I use a TP-Link router (3420) to connect to my ISP. My local IP address is 192.168.0.22. The ISP uses DHCP and the router shows the range of it 10.19.xxx.xxx. Sites like whatismyip.com show the ...
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0answers
12 views

DHCP-Enabled Router Sometimes Won't Talk to Host with Static IP

I have a Windows 7 host connected to a router running DD-WRT. The router is running a DHCP server. For reasons I don't need to detail here, I have set a static IP on the host, as opposed to ...
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0answers
16 views

DHCP setup for Server Virtual Machine

I'm trying to setup a server on a virtual machine, the new tech preview 4 and its the first time I tried to setup a server, the instructions say to disable DHCP on the router (virgin) and then set a ...
0
votes
1answer
18 views

ADSL router - public IP for local network

Today I went to my friend and took a look at his PC. He has ADSL router ZTE ZXDSLl 831cii. So there is a telephone line to router and PC is connected to Lan1 of the router (there are also Lan2, Lan3, ...
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2answers
32 views

How many routers do I need to support 3 vlans over a single ethernet connection

I have multiple rooms each with a single ethernet cable and will have a switch in each room connected to an AP for wireless access on 192.168.?, a teacher workstation on 192.168.2 and one or more ...
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1answer
39 views

How to troubleshoot a networked device with incorrect static IP address?

I have a Sony SNC-EP521 IP camera that's currently set to a static IP address of something like 10.0.0.x (if I remember correctly). The network I'm trying to place it in has IP addresses like ...
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2answers
20 views

DHCP categorise IP leases

I would make a major upgrade in my home network environment. I have a dlink 655 router. On this router All the DHCP will be happening. Also I will have 3 additional APs. I would like somehow to ...
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votes
1answer
24 views

Source of internet wireless: Mask connected devices behind router/device

Which device/router do I need to use not an ethernet cable as source of internet but a wireless connection. I want to connect to a (different) wireless network without it knowing how much or which ...
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votes
4answers
52 views

Unable to access router home page

I am Unable to ping router at 192.168.10.1 I want to access the router to change wireless security passphrase Why I am not able to access with web browser? Machine Details: Win7, IP: ...
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1answer
21 views

How to add the following range in my Windows 2012 DHCP Server?

How to add the following range in my Windows 2012 DHCP Server? 192.168.1.0/24 192.168.1.248 192.168.11.0/24 192.168.11.1 192.168.12.0/24 192.168.12.1 192.168.13.0/24 192.168.13.1 ...
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0answers
23 views

How to set (reset) PXE binary filename in pfsense?

I am trying to load lpxelinux.0 instead of pxelinux.0 in pfSense, and configured it in default bios filename setting: Unfortunately, server still sends pxelinux.0 as a filename: How to fix? How ...
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1answer
389 views

How can all the routers remember my leased IP? Shouldn't it change if I connect to a different router?

If i have understood this correctly. The DHCP server will lease you an IP address, when you first connect to let's say a school network. If I move from the 8th floor to the 2nd floor, then I'll most ...
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0answers
15 views

automatic decision whether to be a DHCP server or client

Can a computer send DHCP request and if there is no answer became a DHCP server? My use case: I have new raspberry pi. I would like to show it to friends connect it in friend's house, in school, ...
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1answer
59 views

Why isn't my DHCP server working?

I am trying to setup a DHCP sever with my Raspberry pi, but the service isc-dhcp-server cannot be restarted. Why isn't the service being restarted? ifconfig eth0 Link encap:Ethernet HWaddr X ...
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1answer
48 views

Connecting two routers (lan-wan) and homegroup sharing?

First of all i wanna say to you that i already connected the routers (LAN-TO-WAN) ... But i have issues and questions :) ... My primary router and my secondary router both also using DHCP... why? ...
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0answers
31 views

IP release and renew return the same IP on a new LAN with different IP scheme

Something strange I've encountered for the first time. Windows 7 PC was movied from one LAN to another and still kept getting the same IP address from DHCP as it did at old LAN location. For example, ...
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votes
1answer
30 views

Requesting a new IP from the DHCP

In Linux, if I want to request a new IP say, for eth0, what commands should I use? Basically, how do I request a different IP from the DHCP so that it replaces my current one?
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1answer
16 views

How to correctly describe a small network running multiple DHCP

I have a home network with multiple devices connected to a central router. I have limited ability to change the core of this network (ie mess with the router, put additional cabling in - joys of ...
0
votes
1answer
24 views

Exclude mac address from home router dhcp (tp-link wd8961)

Is there any chance to configure a home router (tp-link wd8961) to exclude a specific MAC address from getting an IP-address via DHCP? I looked through all settings in the admin UI and through the ...
0
votes
1answer
25 views

Alternative for bridge mode

Up until now, I have been managing my own private network by setting my ISP's modem to bridge mode. However, recently I switched my ISP and now I received a modem with rather limited options. I can ...
0
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1answer
97 views

Archer C7 AC1750 Bridge Mode

I have an Archer C7 AC1750 wireless router which is great but I can't enable bridge mode through my modem, so I need the Archer's DHCP service to be disabled and pass the DHCP from my modem through a ...
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0answers
21 views

Hostname won't resolve after setting up new server

I just completed a fresh install of Centos 7 on a PC. It is connected to the campus network, so I am not in control of the DNS server. I gave it a hostname by setting the HOSTNAME value in ...
1
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1answer
34 views

Roaming through AP lose contact with part of the network

I hope you can help me with a problem bothering me for long now. I have a small home network with two routers. Both broadcast a same SSID, router/modem "1" in channel 6, router "2" in channel 1 (see ...
0
votes
1answer
73 views

How to assign a reserved IP address on Fortigate 60C

I'm trying to bind mac to ip on FortiWiFi 60C v5.2.6,build711 gw # config system dhcp reserved-address command parse error before 'reserved-address' Command fail. Return code 1 any idea why it ...
0
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0answers
27 views

Debian 8.1. Needs restart eth0 iface to get connection

I have a strange problem with connection to Internet in my Debian 8.1. I change content file /etc/network/interfaces to iface lo inet loopback auto eth0 iface eth0 inet dhcp Now if I restart system ...
0
votes
1answer
31 views

Can anyone please explain usage of few settings in my Dlink Adsl modem+router?

The router is Dlink 2730U. The documentation doesn't list the usage and function. DHCP server settings list both Lan and wan ports... please see pic Not sure, how WAN ports are used in DHCP? ...
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0answers
25 views

Distinguish between DNS-requests from local network and internet

I am using DNSmasq both for my local clients and some internet services. One service I provide is a dynDNS server. It receives IP updates via HTTP and writes it as simple hosts file but without ...
1
vote
1answer
29 views

Trying to find & get a fixed DNS?

I'm trying to find our DNS details to specify in our printer so it can send scan docs to email. Running a cmd prompt is showing details starting with fe80::c6ea: instead of a proper DNS address. Any ...
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0answers
48 views

How to set up 10 routers to form one wireless network? [closed]

So we have set up 10 routers to form one big wireless network with 1 SSID. This network has many issues. Devices are working one day, and the other day they are offline for no reason. Some devices ...
0
votes
1answer
47 views

How to use my own router as DHCP server when ISP modem router does not support bridge?

I'm currently using a GPON router (ZTE F660) from my ISP. I'm planning to purchase TP-LINK N600 TL-WDR3600 as secondary router and use that instead for my LAN and WLAN because the GPON router (main ...
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votes
1answer
22 views

A br0 bridge interface appeared and mess up my network config

Problem This afternoon, I launched my openSUSE Leap 42.1 like everyday and then I quickly note that my networking was'nt working correctly. A quick ifconfig show me that a new br0 interface show up. ...
0
votes
1answer
78 views

What's better RADVD or DHCPv6 for local network with IPv6?

today I got a new router and now I want to enable IPv6 on my network. But the thing is I don't know what the better option is since TP-Link gives me two ways to get IPv6 on my network. The first ...
1
vote
1answer
32 views

Hostname won't resolve even with router DHCP reservation?

I'm setting up a simple Linux home server and I want to be able to access it over my LAN using it's hostname. Even after reading through this really informative post I'm still having issues connecting ...
0
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0answers
21 views

Client not getting connected with reserved IP

We have DHCP running on Server 2012 R2 and reserved IP for fileserver in our domain. While booting after weekend, it is found that the reservation is inactive. The reservation was deleted and found ...
3
votes
1answer
40 views

Proper way to connect access point to a router (both potentially using DHCP)?

So this is baffling to me for some reason, and I'm sure the solution is quite simple. I have these three devices that make up my current home network: Arris SB6183 Cable Modem D-Link DIR-879 Router ...
0
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1answer
11 views

Static or Dynamic addresses when connecting to a SAN

Best practices question: I have many computers connected, in the same rack, to a SAN. The SAN talks iSCSI to the network, and will need to have an IP address to serve out storage. The question is if ...
0
votes
1answer
30 views

Is it possible that a cable router (Ethernet WAN socket) can allow DHCP passthrough?

I have a problem but not sure where it originates... I've set up a very small business network and they've got an old Belkin cable router (F5D7231-4) that connects to the building LAN. The building ...
0
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2answers
45 views

pulling a second unknown IP address

We currently have several devices on our network. In the last couple of days, a few of those devices are obtaining IP address in another IP range from an unknown source. Today I left for about an ...
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votes
1answer
63 views

NSlookup of static IP showing computer name from DHCP range

I am part of a network with 60 or so maximum devices. Just a class C subnet where x.x.x.1-100 are statically addressed hardware. 101-150 are also statically assigned addresses for thinclients and ...
0
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1answer
37 views

Cisco 3600 not allocating DHCP addresses

We've purchased a cisco router 3600 for use as a DHCP server and I have configured it to test like this: Current configuration : 1292 bytes ! version 12.4 service timestamps debug datetime msec ...