similar to: a VM does not get dhcp

Okay. I may be missing something; from what you explicitly write about subnets, it sounds like you only have one, but if you don't have two subnets, why do you need a DHCP relay? SO. Assuming you have two subnets: * It sounds as if your DHCP request is generating an ACK. * I'm 99% sure your ACK has to traverse the DHCP helper and wend its way back to the originating host. So

In our LAN a Linux-router connects 2 subnets. On this router dhcrelay is running. For several reasons we have to run a firewall on this box. But what is the right way to configure dhcrelay using Shorewall??? Thanks. -- Ad Koster <lidad@zeelandnet.nl>

I know that this is not a pxelinux/syslinux question (yet), but I am having a weird issue with a HP ML370. It is using HP UNDI PXE 2.1 (build 082) v 3.1.15 I successfully get an IP address from my DHCP server, but the machine fails when it attempts to make it's TFTP connection with: "PXE-E32 - TFTP Open timeout" It never gets the pxelinux.0 file. The odd thing I noticed was

hi everybody in my libvirtd I use bridge with route forward mode, Problem for me is dhcrelay.service on host which is starting before libvirtd thus not listening on libvirt interface. OS is RHEL7. I wonder if you know how to fix it, besides restarting dhcrelay that is. many thanks

There seems to be a slight issue with the instructions at the following wiki page: https://wiki.samba.org/index.php/Configure_DHCP_to_update_DNS_records_with_BIND9 The /usr/local/bin/dhcp-dyndns.sh script seems to use a hardwired value for the lease expiry time of 3600 - independent of whatever is configured in dhcpd.conf. With the examples provided, it should work, as the example dhcpd.conf

Hello, I''m trying to configure my desktop as a bluetooth network access point for my ipaq (as explained in http://www.stolk.org/debian/bluetooth.html). I''m running shorewall version 2.2.1 on debian testing with a local network via eth0 and internet access via eth1. I''ve created a bridge br0 for eth0 and bnep0 and activated bridging in shorewall. dhcpd is listening

Hi Rowland, > You could try adding something like this near to the top of > dhcp-dyndns.sh: > > TTL=$(cat /etc/dhcp/dhcpd.conf | grep 'max-lease-time' | awk -F ';' > '{print $1}' | awk '{print $NF}') > > Then replace the '3600' with '$TTL' Users like comments in their config files. Your script: cat /etc/dhcp/dhcpd.conf |

On 21/05/2020 21:04, Matt Savin wrote: > I think you can continue to use '128' (good for load balancing, > otherwise 255 is fine). I had the same issue, following dhcpd.conf > entries fixed it (the last entry is important): > > one-lease-per-client? true; > deny ? ? ? ? ? ? ? ? ? ? ? ?? duplicates; > ignore-client-uids ? ?? true; > > And it's not a bug,

Hy there, i have a centos (4.?) Box with nightly yum update enabled. Last night, it did an upgrade to 4.7 leading to several problem i.e. not respawning the dhcrelay, which is needed on this box. Can I control the update policy not to upgrade to new releases in the nightly updates? I would like do to nightly updates, but make release upgrades manual (I get a new kernel, so I have to reboot

On 29/03/18 15:52, Rowland Penny via samba wrote: > On Thu, 29 Mar 2018 15:01:26 +0100 > Sebastian Arcus via samba <samba at lists.samba.org> wrote: > >> There seems to be a slight issue with the instructions at the >> following wiki page: >> >> https://wiki.samba.org/index.php/Configure_DHCP_to_update_DNS_records_with_BIND9 >> >> The

Anybody have any experience with setting up dhcpd in failover mode between two servers? I set this up on a couple of servers, and it seems to be working, but I don't think it is working "right". It appears both servers are replying to all requests (which for renewals works okay because they both give the same address, but new requests get two different responses). I thought that

Hi all, this is my first post on this list, hope someone can help me. I have to run a dhcp server on CentOS release 5.5 (Final). # yum list| grep -i dhcp dhcp.x86_64 12:3.0.5-23.el5 installed dhcp-devel.x86_64 12:3.0.5-23.el5 installed dhcpv6-client.x86_64 1.0.10-18.el5 installed after starting the dhcpd daemon, the windows Clients on the subnet (192.168.100.0/24) tells me, that there is no

i recently setup a dhcp at my home and now i am getting these errors in my logs and was wondering if i set something up wrong? --------------------- dhcpd Begin ------------------------ Unknown Entries: Unable to add forward map from STEVEN-DELL.dusty.home to 192.168.1.100: timed out: 4 Time(s) Unable to add forward map from laptop.dusty.home to 192.168.1.104: timed out: 4

Hi, I've got a box with CentOS 4.2 x86_64 which had no DHCP access for a few hours, now I can't ping it (I'm pretty sure the box is still up). I expect the DHCP lease has timed out and the box has lost it's IP, I was expecting it to reacquire it once the DHCP came back up (configuration problem) - but no luck. Is this a known problem? Any solution/workaround? (for now or for

Hi list, We are running few Centos5.4 and windows 2003 instance on CENTOS XEN virtualized environment , all the guest are getting the IP/NETWORK/GATEWAY setting from the DHCP Server running on CENTOS 5 server and the DNS configured on the windows 2003 server. All of the CENTOS Guests are getting the IP and the host name as per the DNS forward look up configured. For example If the CENTOS

How can I find out what variables and their values were provided by a dhcpd server to my client? I thought perhaps /etc/dhclient-eth1.conf, but that is not the place...

My ISP has DHCP-assigned IP-addresses. I wonder if someone has tried using proxyarp for a DMZ with DHCP-assigned public IP?

I've read a number of articles, googled the web for a few months and now attempting at turning my CentOS box into a gateway for the third time. Configured my dhcpd.conf and other related files and all seems to be working, I can have my M$ desktop leasing an ip address and all. The problem is when I want to go out to the internet I keep on getting the Request Timed out error. I'm pretty

Hi, syslinux: I use pxelinux to install Linux from network. Currently, my problem is: The first time, the client machine can acquire the IP address from dhcp server but at the second time, the client machine cannot acquire the IP again. The only way is to remove the /var/lib/dhcp/dhcpd.leases file in server and restart the dhcpd service. Then the client machine can get the IP again.

Hi, Ok it's better like this!:-) The dhcp failover mode works well and 2 windows 7 client PC are well handled. They can have an IP and addresses are created/deleted in the DNS successfully. but... I try to remove my 2 old windows 2000 AD server from the production's LAN and put my 2 new Samba4 instead. The dhcp servers works fine but not really the DDNS. We have this kind of error