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Questions tagged [isc-dhcp]

ISC DHCP is open source software that implements the Dynamic Host Configuration Protocols for connection to a local network. It is a reference implementation of those protocols, but it is also production-grade software, suitable for use in high-volume and high-reliability applications. DHCP is available for free download under the terms of the ISC License, a BSD style license.

ISC DHCP is open source software that implements the Dynamic Host Configuration Protocols for connection to a local network. It is a reference implementation of those protocols, but it is also production-grade software, suitable for use in high-volume and high-reliability applications. DHCP is available for free download under the terms of the ISC License, a BSD style license.

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Windows 2003 DNS updates from ISC DHCP server

We have a very mixed network, with most clients being Debian Lenny, the rest Windows XP/Vista/7. The network itself is split into two segments (for technical reasons) called "corporate" and "engineering". On the "corporate" side all clients get…
wolfgangsz
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Can't start isc-dhcp-server because of the Error : Not configured to listen on any interfaces

I try to set up a wifi access point with hostapd and isc-dhcpd but the dhcp server dont work.The conf file is the same i found in this tutorial: [Hostapd : The Linux Way to create Virtual Wifi Access Point][1] !!!!ok i think i wont get any help…
ABeater
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How to tell ISC DHCP correct zone for reverse zone DDNS update?

I've got an ISC DHCP server running (version 4.2.5) which is configured to dynamically update the reverse zone on a DNS service with the hostname it receives via a dhcp DISCOVER package. It all works fine on zones like 2.1.10.in-addr-arpa but this…
Clayton Louden
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Can I prevent Debian from hitting DHCP server twice during installation?

I have a DHCP server used to do unattended installations of Debian: boot from PXE, and then install the operating system with a preseed. The DHCP server (Debian's isc-dhcp-server package) is configured to do an operation (do an HTTP POST) when…
Arseni Mourzenko
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How to generate DHCP Decline scenario / packets

I have a dhcp packets sniffer, which needs to log if it sees dhcp decline response coming from client.I need to know the scenario where client can send dhcp decline response to dhcp server. I tried to get this reproduce by minimizing small range of…
user2589882
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ISC DHCP Server "Dynamic and static leases present"

i have a problem similar to Fixed and dynamic IPs in ISC DHPD lead to double lease In my DHCP-Log I often receive warnings like Jan 21 10:20:56 dc2 dhcpd: Dynamic and static leases present for 192.168.1.107. Jan 21 10:20:56 dc2 dhcpd: Remove host…
user333163
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Can ISC-DHCP bind to Option 82 rather than Mac Addresses?

We use option 82 information to limit leases presently in ISC-DHCP using a spawn with statement for our billing subclass. This keeps a single household/business from obtaining more leases than they should. The issue we have is ISC-DHCP ties leases…
Mythics
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proxy autoconfiguration: windows does not download wpad.pac file

I am trying to configure my dhcp server on Debian Wheezy to reply to DHCP INFORM and send a url where my Windows client may download the wpad.dat file. Here is the configuration file: option local-proxy-config code 252 = text; subnet 192.168.1.0…
philippe
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2 client classes sharing the same subnet range

basically I would like to achieve the followings: using only one subnet different types of user sharing this subnets creating 2 pools accordingly an user class called "l2vpn_user" if matched by MAC address then will be assign a different…
Simon Lin
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Fixed dhcp host to automatically expire any lease

I have the following situation: Multiple offices with multiple firewall/dhcp servers. Every time the IT team of some office plugs a new network printer i need to create a fixed-address entry, and delete the lease that this printer already got before…
user122772
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How can I configure dhcpd to only update the reverse zone in bind?

I've got dhcpd pushing updates to bind, and it seems to be working fine: named[24161]: client 192.168.10.1#59141: signer "dhcp_updater" approved named[24161]: client 192.168.10.1#59141: updating zone 'office.lan/IN': adding an RR at…
ndbroadbent
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DHCP fault tolerant servers: Split pool or failover?

I need to replace an aging DHCP server by a fault tolerant solution. I consider using the ISC dhcp server solution which can be setup either as split servers serving non-overlapping ip ranges or as a master-slave cluster. The network is of the SOHO…
ripat
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Aliased network interfaces and isc dhcp server

I have been banging my head on this for a long time now. There are many discussions on the net about this and similar problems, but none of the solutions seems to work for me. I have a Debian server with two ethernet network interfaces. One of them…
Jonatan
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ISC DHCPD IPv6 for multiple interfaces

I want to assign multiple IPv6 to a server with multiple NIC. As IPv6 RFC defines, each server has a unique DUID that can have one of the 3 formats (LL, LLT or enterprise). And each NIC has an IAID. So a request from NIC1 its the DUID and the IAID…
Seoman
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DHCP failover with isc-dhcp-server using two secondary servers

I'm rearranging our network and putting some DHCP failover since we have a lot of machines, and even servers, getting IP addresses with DHCP. Today we have a nice DNS topology with one master server and two slaves. The DHCP gives the slaves address…
Vinícius Ferrão
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