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3
votes
0answers
58 views

Assigning option based on class membership inside the subnet section

We are looking for a way to do something along these lines in the dhcpd.conf file: subnet ... { #couple of options for the subnet here pool { allow members of "class-name1"; ...
0
votes
3answers
173 views

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 ...
0
votes
1answer
30 views

ISC DHCP Server scope error

Why am I getting the following error after modifying my dhcpd server config? option space definitions may not be scoped
1
vote
3answers
70 views

How can I assign an IP by MAC address in dhcpd

How do assign an IP address by mac address using dhcpd? So far I have tried host blah { hardware ethernet <mac address>; fixed-address <ip address>;} in my dhcpd.conf. but after ...
0
votes
1answer
60 views

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 ...
1
vote
2answers
115 views

Linux dhcpd server with multiple scopes to assign IP based on request source

I have configured a Linux dhcpd server with multiple scopes on the same interface(eth0). The devices which needs these IP address(DHCP clients) are on two different remote networks. The networking ...
0
votes
0answers
58 views

How to setup metric for routers on CentOS DHCP server

I have a simple DHCP server running on CentOS 6 with the following configuration: subnet 192.168.1.0 netmask 255.255.255.0 { allow booting; allow bootp; ddns-update-style none; range ...
2
votes
2answers
181 views

DHCPD clean leases on client disconnect

Is there a way to force ISC DHCPD to trigger expire or release for static lease right after client disconnect? I want to trigger a script right after client connects ("on commit" DHCPD event) and ...
-1
votes
1answer
88 views

Enterprise DHCP server solution? [closed]

I have a network of about 1000 assorted devices, all of witch are running by static IP addressing. Given the size of the network and the lapse of technical advice, the addressing scheme is in chaos ...
0
votes
1answer
336 views

DDNS, BIND and leftover .jnl files

I have configured BIND and ISC DHCPD to work together (using keys for updates). Now it's not that it does not work at all: forward maps etc are most often added. However, very often, for no apparent ...
1
vote
1answer
264 views

dhcpd not pushing ddns updates to bind

BIND and DHCPD are configured but as far as I can tell DHCPD makes no attempt to even send Dynamic DNS update to BIND. I can manually add records using nsupdate with the same key I have configured ...
0
votes
1answer
113 views

dhcpd update bind dns server on non standard port

I have most of a dynamic dns set up working. I can manually update the DNS entries using nsupdate and my dhcpd.conf file will attempt to set the DNS entries. However this fails as I don't have bind ...
0
votes
1answer
89 views

Pass kernel boot parameters from dhcpd.conf for a host group?

Is it possible to configure dhcpd.conf such that a specific host group would use an additional kernel boot parameter passed on to the kernel loading? Thanks!
1
vote
0answers
96 views

Cannot assign IP address according to an option parameter

I have this DHCP conf file: authoritative; option domain-name "XXX.XXX.XX"; allow bootp; ddns-update-style ad-hoc; class "karpuz-kabugu" { match if (substring (option user-class, 0, 6) = ...
0
votes
2answers
388 views

Cisco ASA5505, packet trace shows bootps and bootpc traffic is dropped on DMZ interface

As the title already states, I have a problem getting DHCPd working on the Cisco ASA5505 version 7.2 with ADSM 5.2 with the basic license. Its an older one I know, and every time I tend to forget how ...
1
vote
1answer
662 views

how to force isc-dhcp-server to attribute new ip regardless of client mac address?

i need to serve DHCP requests for a given test tool tailored for a specific network hardware (hardware under test). The testing tool (my server + simple netgear 5ports switch) seems to work as long ...
0
votes
1answer
497 views

Is is possible to configure ISC's DHCPD to configure resolv.conf options like timeout and attempts?

The resolv.conf supports a line called options that allows for some fine tuning of the behavior of the resolver. In my environment we are using ISC's DHCPD to provide DHCP services to our services. ...
1
vote
1answer
50 views

set search domain on dhcp server without changing domain name

Suppose my company's domain is "company.com", our department's domain is "dept". How to set dhcp server in order to let our department's computers to search company.com? Or I have to set up a dns ...
2
votes
2answers
5k views

DHCPDISCOVER/DHCPOFFER, but no DHCPACK

I have a remote client machine that is sending out DHCPDISCOVER's. The server is responding with a DHCPOFFER, but there is no DHCPACK. This repeats about every 30 seconds from the same host. Is ...
2
votes
1answer
3k views

How do I assign hosts to classes in ISC DHCPD?

Suppose I have a bunch of hosts set up like this: host host2 { hardware ethernet 10:bf:48:xx:xx:xx; fixed-address 192.168.1.2; } host host3 { hardware ethernet 10:bf:48:xx:xx:xx; fixed-address ...
0
votes
2answers
570 views

Switch sending DHCP packets to wrong VLAN

I have a basic remote site with a Cisco Catalyst 2924XL switch. There are 2 VLAN's at the site: 1 Default 2 Wireless There is a single server connected via a single ethernet cable, VLAN 1 is ...
2
votes
0answers
2k views

Setting Shoretel phone time correctly with dhcpd

Our Shoretel 230 phones are not picking up time service correctly and thus, the time on the display is wrong. When I go to the diagnostics of the phone, they are using a wrong time server (old). Here ...
0
votes
1answer
96 views

overlay DHCP pool on top of exiting network

I have a network that was all statically assinged in the past, moving it to DHCP. Some hosts, we have as reservations, but not all of them.. Our server is running bind dhcpd on cenotos 5, with ...