FOG Server/ PXE boot and HP procurve switch

[cjohnsonuk]

Whilst I was off over Easter a new HP procurve switch (1910 48G) was installed to replace our netgear one that was intermittently rebooting during the day. The server is a VMWare esxi ubuntu box, dhcp on windows, and this connects to the HP switch. The clients are on switches hung off the HP Procurve. Everything worked fine before I left. Everything except PXE boot appears to work fine since the change. PXE is part of a FOG install but with added isos for virus checking etc).

 

There was quite a bit of work done in the time I was off. The fog server was rebooted. The HP switch is straight out of the box, no VLANs set up on it. Clients will boot the iPXE part of the netboot but then fail, either rebooting again in a continuous loop or coming up with

"cannot start download: operation not supported"

iPXE - open source boot firmware [err:3c0920]

 

There are broadcast and multicast settings for the procurve, currently all set to "100%"

 

Any ideas where I should start?

[cjohnsonuk]

Fixed it

After testing with a previous snapshot of the tftp server I found that after one reboot it came up with a DHCP address in an incorrect range. A ping, arp -a later I had the mac and make of the dhcp server, reviewing the switch stats I got a port and found a rogue DHCP server. Turned it off, and all works fine again. Just waiting on doc from HP on enabling DHCP snooping to limit where DHCP service responses can come from now...