All Questions
Tagged with dhcp-server dhcp-option
25
questions
4
votes
2
answers
2k
views
Can a DHCP Server detect Windows version?
How can a DHCP server distinguish between Windows 10 and Windows 7 clients?
I want to identify the Windows version of the clients using the vendor class, and assign the specified settings.
I am ...
0
votes
1
answer
140
views
How do I deploy correctly my DHCP Servers with DHCP Option 82?
My Goal is to achieve a seperate DHCP Pool on my switches, how am I able to achieve it on a flat network hosted for a LAN-Party. Which means seperate VLANs should be avoided
We're talking about ...
-3
votes
1
answer
387
views
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 ...
0
votes
1
answer
68
views
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 ...
1
vote
1
answer
405
views
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 ...
- 61
0
votes
1
answer
1k
views
Using DHCP reservations instead of static IP address configuration for servers
I was wondering if it is better to use DHCP reservations for servers and computers that must have static IP address, excluding DHCP servers themselves, Domain Controllers, and DNS servers of course, ...
- 263
0
votes
1
answer
463
views
isc dhcp multiple option 240 in same subnet
I'm fairly new to isc dhcp.
I'm working at an ISP and need to provide our STB's with an option 240, and it has worked fine for years, the problem now is that we are getting a newer model, that needs a ...
0
votes
1
answer
543
views
DHCP Pools on Ubuntu DHCP server not working properly
Mac addresses ending with "55:a3" and "56:2a" are also ending up in last pool
123 match if binary-to-ascii(16,8,":",substring(hardware, 5, 6)) = "55:a3"; ...
- 111
1
vote
0
answers
881
views
How does MS DHCP server decide which DNS server to try to dynamically update?
In MS DHCP, under Scope Properties, on the DNS tab, it says:
You can setup the DHCP server to automatically update authoritative DNS servers with the host (A) and pointer (PTR) records of DHCP ...
0
votes
1
answer
2k
views
How can I configure DHCP server to issue the same fixed-address by matching with the client identifier in the discover message
I am able to config fixed ip address with hardware ethernet options, but i am trying to assign fixed ip based on client id(option 61) from DISCOVER message. I tried with below configs , but it doesn't ...
- 11
0
votes
1
answer
3k
views
Option 81 in DHCP
Just curious about this.
When we enable option 81 on a DHCP network, the DHCP server will start updating the zone that comes along with the client's FQDN.
Now, how would client will ever know its ...
- 139
0
votes
1
answer
295
views
dhcpd daemon taking huge amount of memory and restarting with out of memory error
I have to configure isc-dhcp-server for 1 million clients which listens on 4094 vlan tagged interfaces, where each vlan interface is mapped to a subnet declaration.
Therefore in total 4094 subnet ...
3
votes
2
answers
70
views
Server 2012R2 DHCP & DNS Updates
I have the following DNS settings configured on an DHCP scope:
My question is, will the DNS entry be made against the DNS server that the DHCP is configured to go against or will it update the DNS ...
- 235
-2
votes
2
answers
1k
views
How do I configure Dynamic Host Configuration Protocol to return a FTP server's IP address along with the interface IP address?
Given that there is a dhcp client, a relay agent and dhcp server. There is also another ftp server. Requirement is that the client starts the DORA process and the server responds with IP address and ...
- 113
1
vote
1
answer
2k
views
dhcpd option 82 logging not working
We are implementing Option 82 in our network and I am just scratching the surface of how to setup my server. I have successfully created my first Option 82 ACL based on the agent circuit ID that is ...
- 649