Random VM fails to download pxelinux.0 over TFTP

[jbrown8380]

I’m getting closer and closer to solving this.

I found this foreman thread and it seems to indicate what I need to do. I’m just not sure how to do it.

DHCP smart-proxy sending out wrong next-server IP address for TFTP. Said wrong IP address is also an external one for some reason

Hi foreman community! So I just discovered this software and have been tinkering with it in the past few days. It really does have a steep learning curve. Problem: The foreman host which also has a dhcp and tftp smart-proxy is a fresh Centos 7.8.2003 KVM VM. A physical PXEbooting client in the network displays E32: TFTP Timeout after getting leased an ip address by the dhcp smart-proxy. I used a packet sniffer software to find out what was going on and I found out that the DHCP server is sendi…

It seems to indicate that I need to set the tftp_servername setting as reported by the proxy API. It also says that it can be either a hostname or an IP address. I’d like to make it an IP address so that it doesn’t rely on DNS name resolution.

Can anyone tell me how to define that setting? I don’t see it anywhere in the Foreman WebUI.

Thanks!