Questions tagged [dhcp-server]
Dynamic Host Configuration Protocol (DHCP)
547
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ISC DHCP server web interface
I want to ask what web interface could be used for isc dhcp server on Ubuntu 22.04 server. I want to create dhcp server on ubuntu, I installed and configured isc dhcp but now i want to manage it from ...
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-3
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1
answer
387
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Windows Server 2019 DHCP Option 33
Noticed there is an option in DHCP for static routes, looks like it is using a server name and an IP that you assign, is this the same thing as adding an entry into the host record like we used to do ...
1
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0
answers
615
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deploying pfSense in OVH public cloud as a DHCP server in HA
I am trying to deploy two pfSense in the OVH public cloud (OpenStack).
Each has its own public IPs and public connectivity works without any problem.
Things become more complicated on the vRack part (...
- 41
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2
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662
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Getting IP address from another subnet's DHCP
As in the diagram below I have two routers on two different subnets.
I connected them together but have not set static routes yet.
Network Diagram
However, when connecting from Access Point A's SSID, ...
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1
answer
291
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DHCP renewal can't go through because DHCP server is down
To my experience, if a DHCP client tries to renew its lease, but the DHCP server is down, and after the lease time is over, there are two possible scenarios:
The client keeps the IP
The client goes ...
- 373
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How to manually purge dhcpd.lease?
How do I manually purge ALL dhcpd.lease ?
Can I just sudo echo /dev/null > /var/lab/dhcpd/dhcpd.lease ?
It's a special use case of testing ground; we have an isolated LAN for developers to do test ...
- 163
1
vote
1
answer
533
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DHCP server does not provide correct filename for PXE
I'm trying to configure PXE server for both Legacy/UEFI support. So I need to provide different bootloaders based on architecture of machine.
Here's part of dhcpd.conf:
option architecture-type code ...
- 11
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1
answer
68
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Windows DHCP IOT retain same IP
I am trying to address a problem.
We have a windows DHCP server and some devices, which we need to replace on needs. The device has a custom DHCP client which sends DHCP-DISCOVERY Packet with ...
0
votes
1
answer
730
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Centos 7 dhcp server not responding to UEFI PXE DISCOVER
I'm trying to set up a Centos 7 server as a dhcp server for PXE (UEFI). I'be tried several changes to the dhcpd.conf file, but nothing seems to make a difference.
dhcpd.conf:
allow booting;
allow ...
0
votes
1
answer
162
views
Migration strategy to migrate a DHCP scope from old DHCP server to new DHCP server as smooth as possible
My current homeLab and entire home is currently running on a single subnet 192.168.0.0/24 with my ISP provided router running a DHCP scope handing out addresses in the 192.168.0.20-192.168.0.254 range,...
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1
answer
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Force sending DHCP options
I have a lab spectrometer that boots using PXE from boot files stored on a computer. They exist inside a local network with the computer acting as both the DHCP and TFTP server.
The spectrometer ...
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1
answer
362
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Setting up LAN gateway for school club network - "No subnet declaration for enp3s0"
I am a computing teacher, I am trying to setup a "sandbox" network with internet access for an after school computing club.
I have an old PC (Debian 11 installation) with 2 ethernet ...
0
votes
1
answer
996
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DHCP logs showing (no free leases)
I have setup new isc-dhcp-server in ubuntu 20.04. all client getting connect but showing there logs (no free leases)
client connected only 25 machine.
sudo tail -f /var/log/syslog
Sep 9 09:43:57 ggn-...
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vote
1
answer
405
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How to send custom DHCP option on all Offer and Ack packets in kea?
I'm using the Kea dhcp server, and I want to use the DHCP options to send data to the server's clients. Following the instructions here, I listed the option with the "always-send": true ...
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Decode UID from dhcpd.leases
I have am testing a device on my network which has this lease assigned:
lease 192.168.110.85 {
starts 3 2022/07/20 16:12:37;
ends 3 2022/07/20 16:22:37;
cltt 3 2022/07/20 16:12:37;
binding ...
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