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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Full Network Enumeration without an assigned ip address
I've faced a situation where I connected to a network with an ethernet cable and the DHCP server was disabled, so I didn't get an assigned ip. I was wondering if I can run a scan with kali linux tools ...
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IPv6 clients only ask for DHCPv6 addresses on FE80
Why would IPv6 clients only ask for DHCPv6 addresses on FE80:: (link-local unicast)? Autoconfigured addresses are fine (on 2001:4341:360:65::/64 as expected).
Have I screwed up my radvd.conf (below; ...
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Ubuntu 22.04 stuck on discovering DHCP
My regular Ubuntu 22.04 laptop is not able to discover DHCP in my home wlan since this morning for some reason. We had issues regarding rogue DHCP Servers in the past, but this time the behaviour is ...
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How can an inactive reserved IP address be used by another device on Windows server? Shouldn’t it be reserved?
I freshly set up DHCP server on Windows Server 2022 and create in advance IP reservation for devices.
At this stage, all devices concerned by this reservation are not yet connected, so IP reservation ...
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Add dhcp request ntp-server (42) option in Windows clients
There is a way to add ntp-server dhcp option request in a windows clients?
In the registry it ask some option but not ntp.
screenshot
Thanks in advance
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Issues when setting up static IP on Debian bookworm
I have recently started hosting my server from my PC and everything worked perfectly until my public IP changed. I taught I have successfully setup a static IP but I didn't. Now I am in a loop of ...
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Reverse-DNS not correct (BIND9 DNS + ISC DHCP)
In my home network under Ubuntu I use a BIND9 DNS server and an ISC DHCP server with Webmin.
Here are my settings:
DNS Master Zone:
Foward: home.local
Reverse: 192.168.5
/etc/bind/named.conf.local:
//...
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Do DHCP and IP depend on each other?
DHCP is a protocol at the application layer, so it must depend on the IP protocol in the network layer. But the IP protocol requires assignment of IP addresses to network interfaces, which is the job ...
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ipv6 - how to make network hosts ignore advertised DNS
On my home network I have:
Router provided by my ISP. DHCP server switched off in its configuration
Raspberry Pi, running dnsmasq (among other things), providing DHCP and DNS servers.
The Raspberry ...
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Make Linux automatically determine whether to use SLAAC or DHCPv6
I'm setting up my Debian router. Depending on where I put my router, I need to use either SLAAC or DHCPv6 to get an IPv6 Address (and I need them both because I am not sure whether I'll need to use ...
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strange extra IP IPv6 addresses
My local network runs IPv4 and IPv6. The IPv6 is mostly experimental, as my internet service provider uses IPv4. I'm running DHCP for IPv6 on a W2K8R2 server. Several computers on my LAN have IPv6 ...
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How to prevent dnsmasq from creating AAAA records for hosts using DHCPv6?
I have a dual stack (V4+V6) internal network with dnsmasq providing DNS, DHCP, and DHCPv6 services. I want to use ipv4 for most of my internal host to host communications, so I don't want dnsmasq to ...
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Only allowing specific IP for DHCP OFFER. Blocking all other IPs with Windows Firewall
I`m living in a dorm and somehow the university did not activate DHCP-Snooping on the switches. (Don't ask me why)
As expected some non-tech-students plugged in their router and did not turn off their ...
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Netgear CAX80 router/gateway blocking MMS messaging on mobile device
I have a problem that I have been banging my head on for quite some time, so I figured it was worth asking for help. The lease on our Xfinity gateway/router combo unit ran up and against better ...
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trying to separate DHCP and Static
As a small business, we aim to host our own onsite email server by obtaining a static IP from our ISP. The ISP provided us with a router capable of both Static and DHCP. Currently, the Cox cable is ...
