PENDING How To OSD from SCCM to Device on Local Network

[soundmagus]

Hi guys, me again!,

I have a lab on my home machine.
I created the lab using Hyper V.
I have a DC, SCCM server with SQL.
The DC runs DHCP and DNS.

I have achieved OSD using SCCM PXE within the Hyper V lab using an internal switch setup.

I would now like to achieve OSD to a laptop on my home network using the SCCM lab.

Here lies my problem, what do I need to do so that when I try to PXE boot from a laptop on my home network it picks up the SCCM OSD PXE?

I created another switch using the EXTERNAL option and changed the DC and the SCCM servers to use these. I also tried disabling the DHCP on my home router hoping the DC in hyper V would provide this, which it did but the laptop doesn’t pick up the SCCM PXE.

What am I missing?

Your help is appreciated as always.

Mark

 

[Sam Banford]

Is the laptop and the SCCM server on the same subnet? PXE DHCP doesn't route (without help).

 

[soundmagus]

Is the laptop and the SCCM server on the same subnet? PXE DHCP doesn't route (without help).

thanks for your reply.

So the laptop isnt on the network at all, its a "Bare Metal" installation.
The Host for the Hyper-V lab is on the same subnjet when i use the EXTERNAL switch.

Thanks

Mark

 

[Sam Banford]

Heh reading my last post reminds me it's not a good idea to post on 33 hours with no sleep.

What I was trying to get at is that your home router may not be passing along the DHCP broadcast to your virtual DC. See if anything can get an IP from it.

 

[soundmagus]

Heh reading my last post reminds me it's not a good idea to post on 33 hours with no sleep.

What I was trying to get at is that your home router may not be passing along the DHCP broadcast to your virtual DC. See if anything can get an IP from it.

Haha get your head down man, no good being awake for that long!

Im trying to keep my home router out of the equation and turned the DHCP off and am trying to use the DC for DHCP.

I think, as you mentioned, the DC won’t route DHCP. I have to route the DHCP from the DC out to the laptop, I believe this involves DHCP routing and remote access, I will try that today.
Mark

 

[Sam Banford]

It hinges on what that home router is acting as. If you are using Ethernet ports it may just be providing layer 2 switching and you should be able to serve DHCP. I think though it's doing layer 3 switching, you're probably using wireless connections and you'd need a dhcp-helper address to forward the requests. Problem is that home routers are special creatures that don't conform to the standard network switch or router design. Best to consult ye olde manufacturer's reference.

 

[soundmagus]

It hinges on what that home router is acting as. If you are using Ethernet ports it may just be providing layer 2 switching and you should be able to serve DHCP. I think though it's doing layer 3 switching, you're probably using wireless connections and you'd need a dhcp-helper address to forward the requests. Problem is that home routers are special creatures that don't conform to the standard network switch or router design. Best to consult ye olde manufacturer's reference.

Sam, Doesnt it change that if i just turn the DHCP on the Home Router off?

 

[Sam Banford]

Depends on what the router's doing. A regular switch would pass broadcasts appropriately to all posts on a (v)lan, onne with layer-3 functionality with a helper address will forward beyond.

Wireshark a DHCP broadcast from a functioning OS and see if it gets trapped in your router.

 

[soundmagus]

Depends on what the router's doing. A regular switch would pass broadcasts appropriately to all posts on a (v)lan, onne with layer-3 functionality with a helper address will forward beyond.

Wireshark a DHCP broadcast from a functioning OS and see if it gets trapped in your router.

Yeahi wouldnt know how to do that but i do know if i disable the DHCP on my Virgin Router my Hyper V host picks up DHCP from the Hyper V Lab DC.
Just dont kow how to make the Laptop get the same.

Mark

 

[Sam Banford]

my Hyper V host picks up DHCP from the Hyper V Lab DC

Your host is on the same switch as your vm, it doesn't need to route to the Virgin. Only thing I can suggest at this point is to delve into the reference for that router to see if you can somehow configure it with a helper-address.

 

[soundmagus]

It hinges on what that home router is acting as. If you are using Ethernet ports it may just be providing layer 2 switching and you should be able to serve DHCP. I think though it's doing layer 3 switching, you're probably using wireless connections and you'd need a dhcp-helper address to forward the requests. Problem is that home routers are special creatures that don't conform to the standard network switch or router design. Best to consult ye olde manufacturer's reference.

Hi Sam, thanks for the reply.

so I think the problem might be that I’m an idiot, I’m trying to get the laptop so see Pxe from my dc using wireless
I will hook up a cable to it when I get home and see if it works, sometimes my dippyness surprises even me!!

Mark