01-10-2012 10:55 AM
Recently we upgraded from Cisco switches/router to Enterasys and changed our DHCP server to the Aruba 3400 controller.
Previously, with the DHCP server on a Cisco router, I was able to PXE boot clients for cloning. To do this, I just added
next-server [IP of Fog cloning server]
to each DHCP Pool.
Has anyone done this on an Aruba Controller? I can find no documentation how to make this work again and could use some help.
01-10-2012 11:33 AM
It appears that these are DHCP options 66 and 67 (not 100% sure), see this link:
Assuming this is correct, you can set these options in the controller's DHCP server using the "option" command, for example:
ip dhcp pool foo
option 66 ip <server>
option 67 text <filename>
Hope that helps.
05-22-2013 12:12 AM
Have you guys gotten this to work? I have a customer that this is not working as it should.
The customer have lots of remote offices running RAP's today, after plugging a PXE computer in an ethernetport on the RAP, the client do get an IP and such.
I have included the option 66 and 67 to the DHCP scope.
At this point, the PXE client is not working, TFTP server timeout.
Even tho we have plugged a windows computer into the same port with a tftp client on. Running a this client we are able to download the image.
The funny thing is that when adding an ip helper-addres to the vlan, the PXE client is working all of a sudden.
IP helper-address are forwarding a few UDP ports, so it might make sense that it wont forward broadcasts across L3 connections.
The ip helper-address is pointing towards the TFTP (SCCM) server and not to a external DHCP server.
The customer also have a 620 controller on a larger office, connected to the master via Internet. Local subnets/vlan's are routed thru the master-local IPsec tunnel. This works great for all other stuff, like AP's, RADIUS etc.
Adding the IP helper-address on the 620 controllers VLAN should do the same trick if i'm not mistaken.
But when we try to plug a computer doing PXE boot into a port on the 620, setting up a DHCP scope with the same options and also adding the ip helper-address, the bootp system will not work.